NI-PXIe4496数据采集卡中文翻译
NI PCI-6143数据采集卡产品规格
NI 6143 SpecificationsThis document lists the I/O terminal summary and specifications for theNI PCI/PXI-6143.For the most current edition of this document, refer to /manuals.Refer to the DAQ Quick Start Guide for more information about accessingdocuments on the NI-DAQ CD.Note With NI-DAQmx, National Instruments has revised its terminal names so they areeasier to understand and more consistent among NI hardware and software products. Therevised terminal names used in this document are usually similar to the names they replace.For a complete list of Traditional NI-DAQ terminal names and their NI-DAQmxequivalents, refer to the Terminal Name Equivalents table in the S Series Help.Table 1. I/O Terminal SummaryTerminal Name TerminalType andDirectionImpedanceInput/OutputProtection(Volts)On/OffSource(mA at V)Sink(mAat V)RiseTime(ns)BiasAI <0..7>AI100 MΩ inparallel with10 pF15/15————AI GND———————D GND———————+5 V—0.1 ΩShort-circuitto ground1A———P0.<0..7>DIO—V CC+0.58 at(V CC–0.4)11 at 0.4 1.150kΩ puEXTSTROBE*DO—— 3.5 at(V CC–0.4)5 at 0.4 1.550kΩ puPFI 0 or PFI 0/ (AI START TRIG or AI START)DIO—V CC+0.5 3.5 at(V CC–0.4)5 at 0.4 1.550kΩ puPFI 1 or PFI1/ (AI REF TRIG or REF TRIG)DIO—V CC+0.5 3.5 at(V CC–0.4)5 at 0.4 1.550kΩ puNI 6143 Specifications PFI 2DIO —V CC +0.5 3.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu PFI 3 or PFI 3/ (CTR 1 SOURCE or CTR 1 SRC)DIO—V CC +0.53.5 at (V CC –0.4) 5 at 0.41.550k Ω puPFI 4 or PFI 4/ CTR 1 GATE DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu CTR 1 OUT DO —— 3.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu PFI 5 or PFI 5/ (AO SAMP CLK or AO SAMP)DIO—V CC +0.53.5 at (V CC –0.4) 5 at 0.41.550k Ω puPFI 6 or PFI 6/ (AO START TRIG or AO START)DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω puPFI 7 or PFI 7/ (AI SAMP CLK or AI SAMP)DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω puPFI 8 or PFI 8/ (CTR 0 SOURCE or CTR 0 SRC)DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω puPFI 9 or PFI 9/ CTR 0 GATE DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu CTR 0 OUT DO —— 3.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu FREQ OUT or F OUTDO——3.5 at (V CC –0.4)5 at 0.41.550k Ω pu* Indicates active lowAI = Analog Input DIO = Digital Input/Output pu = pull-upAO = Analog Output DO = Digital OutputNote : The tolerance on the 50k Ω pull-up resistors is large. Actual value might range between 17k Ω and 100k Ω.Table 1. I/O Terminal Summary (Continued)Terminal Name Terminal Type and Direction Impedance Input/ OutputProtection (Volts) On/Off Source (mA at V)Sink (mA at V)Rise Time (ns)BiasSpecificationsThe following specifications are typical at 25°C unless otherwise noted. Analog InputInput CharacteristicsNumber of channels...............................8 differentialADC resolution......................................16 bits, 1 in 65,536Sampling rateMaximum........................................250 kS/sMinimum........................................0 S/sAccuracy.........................................±50 ppm for internal timebaseInput coupling........................................DCInput range.............................................±5 VInput impedanceAI + to AI GND..............................100 MΩ in parallel with 10 pFAI – to AI GND..............................100 MΩ in parallel with 10 pFInput bias current...................................±20 pA typ, ±150 pA maxInput offset current.................................±3 pA typ, ±20 pA maxMax working voltage for all analog input channelsPositive input (AI +).......................±7 VNegative input (AI –)......................±7 VOvervoltage protection(AI +, AI –)............................................±15 VInput current duringovervoltage conditions...........................±5.7 mA maxInput FIFO size......................................2,046 samplesData transfers.........................................DMA, interrupts,programmed I/ODMA mode............................................Scatter-gather© National Instruments Corporation3NI 6143 SpecificationsNI 6143 Specifications DC Transfer CharacteristicsDNL........................................................±0.8 LSB typ, no missing codes INL..........................................................±1.5 LSB typ, ±3.0 LSB max System noise...........................................0.8 LSB rmsDynamic CharacteristicsPhase mismatch......................................±0.5° at 100 kHz Crosstalk.................................................–90 dB at 50 kHz Bandwidth...............................................490 kHz SINAD....................................................89 dB at 10 kHz CMRR.....................................................75 dB at 60 Hz SFDR......................................................98 dB at 10 kHz THD........................................................–96 dBc at 10 kHzStabilityRecommended warm-up time.................15 min Onboard Calibration ReferenceLevel................................................2.50 V (±2.5 mV)(actual value stored in EEPROM)Temperature coefficient...................±7.0 ppm/°C max Long-term stability..........................±20 ppm/Table 2. NI 6143 Analog Input DC Accuracy InformationNominal Range at Full Scale (V)Absolute AccuracyGain Error (%of Reading)Offset +INL Error (µV)Gain Tempco Ext./Int. Cal (%/°C)Offset Tempco (µV/°C)Random Noise (µV rms )Absolute Accuracy at Full Scale (mV)Relative Accuracy (mV)±5.00.056000.0007/0.00031041223.6130.0488Note : Accuracies are valid for measurements following an internal S Series calibration. Averaged numbers assume averaging of 100 single-channel readings. Measurement accuracies are listed for operational temperatures within ±1°C of internal calibration temperature and ±10 °C of external or factory-calibration temperature. NI recommends a one-year calibration interval. The Absolute Accuracy at Full Scale calculations were performed for a maximum range input after one year and 100points of averaged data.1,000 hTypical Performance Graphs© National Instruments Corporation5NI 6143 SpecificationsNI 6143 Specifications Digital I/ONumber of channels................................8 input/output Compatibility..........................................TTL/CMOSPower-on state........................................Input (high-impedance)Data transfers..........................................DMA, interrupts,programmed I/OTiming I/OCounter/TimersNumber of channels................................2 up/down counter/timers Resolution...............................................24 bits Compatibility..........................................TTL/CMOSTable 3. Digital Logic LevelsLevelMin Max Input low voltage Input high voltageInput low current (V in = 0 V)Input high current (V in = 5 V)0.0 V 2.2 V ——0.8 V 5.0 V –320 µA 10 µA Output low voltage (I OL = 24 mA) Output low voltage (I OL = 11 mA)Output low voltage (I OL = –13 mA)Output high voltage (I OH = –8 mA)——4.1 V 4.35 V0.83 V 0.4 V ——Table 4. Digital Logic LevelsLevelMin Max Input low voltage Input high voltage0.0 V 2.2 V 0.8 V 5.0 V Output low voltage (I OL = 5 mA)Output high voltage (I OH = –3.5 mA)—4.35 V0.4 V —Base clock frequency.............................20 MHzBase clock accuracy...............................±0.01%Max source frequency............................20 MHzMin source pulse duration......................10 ns, edge-detect modeMin gate pulse duration..........................10 ns, edge-detect modeData transfers.........................................DMA, interrupts,programmed I/OFrequency ScalerNumber of channels (1)Resolution..............................................4-bitCompatibility.........................................TTL/CMOSDigital logic levels.................................Refer to Table 4Base clock frequency.............................10 MHz, 100 kHzBase clock accuracy...............................±0.01%Digital TriggerPurpose...................................................Start, reference, and pause trigger,sample clockExternal sources.....................................PFI <0..9>, RTSI <0..6>Compatibility.........................................TTLResponse................................................Rising or falling edgePulse width.............................................10 ns minRTSI Bus (PCI Only)Trigger lines <0..6> (7)RTSI clock (1)© National Instruments Corporation7NI 6143 SpecificationsPXI Trigger Bus (PXI Only)Trigger lines <0..5> (6)Star trigger (1)Clock (1)Power Requirement+5 VDC (±5%).......................................40 mA+3.3 VDC (±5%)....................................140 mA+12 VDC (±5%).....................................150 mA–12 VDC (±5%)......................................80 mAPower available at I/O connector............+4.65 to +5.25 VDC at 1 APhysicalDimensions(not including connectors)......................15.5 cm by 10.6 cm(6.10 in. by 4.17 in.)I/O connector..........................................68-pin VHDCIEnvironmentalThe NI 6143 is intended for indoor use only.Operating EnvironmentAmbient temperature range....................0 to 50 °C (tested in accordancewith IEC-60068-2-1 andIEC-60068-2-2)Relative humidity range..........................10 to 90%, noncondensing(tested in accordance withIEC-60068-2-56)Altitude...................................................2,000 m (at 25 °C ambienttemperature)NI 6143 © National Instruments Corporation 9NI 6143 SpecificationsStorage EnvironmentAmbient temperature range....................–20 to 70 °C (tested in accordancewith IEC-60068-2-1 and IEC-60068-2-2)Relative humidity range.........................5 to 95%, noncondensing(tested in accordance with IEC-60068-2-56)Shock and VibrationOperational shock..................................30 g peak, half-sine, 11 ms pulse(Tested in accordance with IEC-60068-2-27. Test profile developed in accordance with MIL-PRF-28800-F.)Random vibrationOperating ........................................5 to 500 Hz, 0.3 g rmsNonoperating ..................................5 to 500 Hz, 2.4 g rms(Tested in accordance with IEC-60068-2-64. Nonoperating test profile exceeds the requirements ofMIL-PRF-28800-F, Class 3.)Note Clean the device with a soft, non-metallic brush. Make sure that the device iscompletely dry and free from contaminants before returning it to service.SafetyThis product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:•IEC 61010-1, EN 61010-1•UL 3111-1, UL 61010B-1•CAN/CSA C22.2 No. 1010.1Note For UL and other safety certifications, refer to the product label, or visit /hardref.nsf , search by model number or product line, and click theappropriate link in the Certification column.National Instruments™, NI™, ™, NI-DAQ™, and RTSI™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or /patents .© 2004 National Instruments Corp. All rights reserved.370835A-01Feb04*370835A-01*Electromagnetic CompatibilityEmissions................................................EN 55011 Class A at 10 mFCC Part 15A above 1 GHz Immunity ................................................EN 61326:1997A2:2001, Table 1EMC/EMI...............................................CE, C-Tick, and FCC Part 15(Class A) CompliantNote For EMC compliance, you must operate this device with shielded cabling.CE ComplianceThis product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows:Low-Voltage Directive (safety).............. 73/23/EEC Electromagnetic CompatibilityDirective (EMC)..................................... 89/336/EECNote Refer to the Declaration of Conformity (DoC) for this product for any additionalregulatory compliance information. To obtain the DoC for this product, visit /hardref.nsf , search by model number or product line, and click theappropriate link in the Certification column.。
基于LabVIEW的数据采集卡PXIe-4499自动校准系统
基于LabVIEW的数据采集卡PXIe-4499自动校准系统沈介明
【期刊名称】《电子产品可靠性与环境试验》
【年(卷),期】2017(035)0z1
【摘要】首先,通过GPIB/GPIB线和USB/GPIB线将FLUKE5522A、
Agilent33120A、PXIe-1062Q控制器和PXIe-4499数据采集卡连接组成了硬件系统;然后,在图形化编程软件LabVIEW和虚拟仪器驱动程序的基础上,设计了数据采集卡PXIe-4499自动校准系统,该系统能够提高数据采集卡的校准效率,具有一定的推广价值.
【总页数】5页(P100-104)
【作者】沈介明
【作者单位】工业和信息化部电子第五研究所华东分所,江苏苏州201705
【正文语种】中文
【中图分类】TP274+.2
【相关文献】
1.一种数据采集卡自动校准系统及关键技术研究 [J], 刘天时;龙文;马宇
2.基于LabVIEW平台的通用数据采集卡的驱动方法及数据采集 [J], 李威宣;黄建新
3.基于LabVIEW控制的频谱分析仪自动校准系统的探究 [J], 申龙
4.基于LabVIEW的某推力自动校准系统 [J], 王得志;方俊雅
5.基于LabVIEW控制的频谱分析仪自动校准系统的探究 [J], 申龙
因版权原因,仅展示原文概要,查看原文内容请购买。
NI PCI-6143数据采集卡产品规格
NI 6143 SpecificationsThis document lists the I/O terminal summary and specifications for theNI PCI/PXI-6143.For the most current edition of this document, refer to /manuals.Refer to the DAQ Quick Start Guide for more information about accessingdocuments on the NI-DAQ CD.Note With NI-DAQmx, National Instruments has revised its terminal names so they areeasier to understand and more consistent among NI hardware and software products. Therevised terminal names used in this document are usually similar to the names they replace.For a complete list of Traditional NI-DAQ terminal names and their NI-DAQmxequivalents, refer to the Terminal Name Equivalents table in the S Series Help.Table 1. I/O Terminal SummaryTerminal Name TerminalType andDirectionImpedanceInput/OutputProtection(Volts)On/OffSource(mA at V)Sink(mAat V)RiseTime(ns)BiasAI <0..7>AI100 MΩ inparallel with10 pF15/15————AI GND———————D GND———————+5 V—0.1 ΩShort-circuitto ground1A———P0.<0..7>DIO—V CC+0.58 at(V CC–0.4)11 at 0.4 1.150kΩ puEXTSTROBE*DO—— 3.5 at(V CC–0.4)5 at 0.4 1.550kΩ puPFI 0 or PFI 0/ (AI START TRIG or AI START)DIO—V CC+0.5 3.5 at(V CC–0.4)5 at 0.4 1.550kΩ puPFI 1 or PFI1/ (AI REF TRIG or REF TRIG)DIO—V CC+0.5 3.5 at(V CC–0.4)5 at 0.4 1.550kΩ puNI 6143 Specifications PFI 2DIO —V CC +0.5 3.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu PFI 3 or PFI 3/ (CTR 1 SOURCE or CTR 1 SRC)DIO—V CC +0.53.5 at (V CC –0.4) 5 at 0.41.550k Ω puPFI 4 or PFI 4/ CTR 1 GATE DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu CTR 1 OUT DO —— 3.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu PFI 5 or PFI 5/ (AO SAMP CLK or AO SAMP)DIO—V CC +0.53.5 at (V CC –0.4) 5 at 0.41.550k Ω puPFI 6 or PFI 6/ (AO START TRIG or AO START)DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω puPFI 7 or PFI 7/ (AI SAMP CLK or AI SAMP)DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω puPFI 8 or PFI 8/ (CTR 0 SOURCE or CTR 0 SRC)DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω puPFI 9 or PFI 9/ CTR 0 GATE DIO —V CC +0.53.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu CTR 0 OUT DO —— 3.5 at (V CC –0.4) 5 at 0.4 1.550k Ω pu FREQ OUT or F OUTDO——3.5 at (V CC –0.4)5 at 0.41.550k Ω pu* Indicates active lowAI = Analog Input DIO = Digital Input/Output pu = pull-upAO = Analog Output DO = Digital OutputNote : The tolerance on the 50k Ω pull-up resistors is large. Actual value might range between 17k Ω and 100k Ω.Table 1. I/O Terminal Summary (Continued)Terminal Name Terminal Type and Direction Impedance Input/ OutputProtection (Volts) On/Off Source (mA at V)Sink (mA at V)Rise Time (ns)BiasSpecificationsThe following specifications are typical at 25°C unless otherwise noted. Analog InputInput CharacteristicsNumber of channels...............................8 differentialADC resolution......................................16 bits, 1 in 65,536Sampling rateMaximum........................................250 kS/sMinimum........................................0 S/sAccuracy.........................................±50 ppm for internal timebaseInput coupling........................................DCInput range.............................................±5 VInput impedanceAI + to AI GND..............................100 MΩ in parallel with 10 pFAI – to AI GND..............................100 MΩ in parallel with 10 pFInput bias current...................................±20 pA typ, ±150 pA maxInput offset current.................................±3 pA typ, ±20 pA maxMax working voltage for all analog input channelsPositive input (AI +).......................±7 VNegative input (AI –)......................±7 VOvervoltage protection(AI +, AI –)............................................±15 VInput current duringovervoltage conditions...........................±5.7 mA maxInput FIFO size......................................2,046 samplesData transfers.........................................DMA, interrupts,programmed I/ODMA mode............................................Scatter-gather© National Instruments Corporation3NI 6143 SpecificationsNI 6143 Specifications DC Transfer CharacteristicsDNL........................................................±0.8 LSB typ, no missing codes INL..........................................................±1.5 LSB typ, ±3.0 LSB max System noise...........................................0.8 LSB rmsDynamic CharacteristicsPhase mismatch......................................±0.5° at 100 kHz Crosstalk.................................................–90 dB at 50 kHz Bandwidth...............................................490 kHz SINAD....................................................89 dB at 10 kHz CMRR.....................................................75 dB at 60 Hz SFDR......................................................98 dB at 10 kHz THD........................................................–96 dBc at 10 kHzStabilityRecommended warm-up time.................15 min Onboard Calibration ReferenceLevel................................................2.50 V (±2.5 mV)(actual value stored in EEPROM)Temperature coefficient...................±7.0 ppm/°C max Long-term stability..........................±20 ppm/Table 2. NI 6143 Analog Input DC Accuracy InformationNominal Range at Full Scale (V)Absolute AccuracyGain Error (%of Reading)Offset +INL Error (µV)Gain Tempco Ext./Int. Cal (%/°C)Offset Tempco (µV/°C)Random Noise (µV rms )Absolute Accuracy at Full Scale (mV)Relative Accuracy (mV)±5.00.056000.0007/0.00031041223.6130.0488Note : Accuracies are valid for measurements following an internal S Series calibration. Averaged numbers assume averaging of 100 single-channel readings. Measurement accuracies are listed for operational temperatures within ±1°C of internal calibration temperature and ±10 °C of external or factory-calibration temperature. NI recommends a one-year calibration interval. The Absolute Accuracy at Full Scale calculations were performed for a maximum range input after one year and 100points of averaged data.1,000 hTypical Performance Graphs© National Instruments Corporation5NI 6143 SpecificationsNI 6143 Specifications Digital I/ONumber of channels................................8 input/output Compatibility..........................................TTL/CMOSPower-on state........................................Input (high-impedance)Data transfers..........................................DMA, interrupts,programmed I/OTiming I/OCounter/TimersNumber of channels................................2 up/down counter/timers Resolution...............................................24 bits Compatibility..........................................TTL/CMOSTable 3. Digital Logic LevelsLevelMin Max Input low voltage Input high voltageInput low current (V in = 0 V)Input high current (V in = 5 V)0.0 V 2.2 V ——0.8 V 5.0 V –320 µA 10 µA Output low voltage (I OL = 24 mA) Output low voltage (I OL = 11 mA)Output low voltage (I OL = –13 mA)Output high voltage (I OH = –8 mA)——4.1 V 4.35 V0.83 V 0.4 V ——Table 4. Digital Logic LevelsLevelMin Max Input low voltage Input high voltage0.0 V 2.2 V 0.8 V 5.0 V Output low voltage (I OL = 5 mA)Output high voltage (I OH = –3.5 mA)—4.35 V0.4 V —Base clock frequency.............................20 MHzBase clock accuracy...............................±0.01%Max source frequency............................20 MHzMin source pulse duration......................10 ns, edge-detect modeMin gate pulse duration..........................10 ns, edge-detect modeData transfers.........................................DMA, interrupts,programmed I/OFrequency ScalerNumber of channels (1)Resolution..............................................4-bitCompatibility.........................................TTL/CMOSDigital logic levels.................................Refer to Table 4Base clock frequency.............................10 MHz, 100 kHzBase clock accuracy...............................±0.01%Digital TriggerPurpose...................................................Start, reference, and pause trigger,sample clockExternal sources.....................................PFI <0..9>, RTSI <0..6>Compatibility.........................................TTLResponse................................................Rising or falling edgePulse width.............................................10 ns minRTSI Bus (PCI Only)Trigger lines <0..6> (7)RTSI clock (1)© National Instruments Corporation7NI 6143 SpecificationsPXI Trigger Bus (PXI Only)Trigger lines <0..5> (6)Star trigger (1)Clock (1)Power Requirement+5 VDC (±5%).......................................40 mA+3.3 VDC (±5%)....................................140 mA+12 VDC (±5%).....................................150 mA–12 VDC (±5%)......................................80 mAPower available at I/O connector............+4.65 to +5.25 VDC at 1 APhysicalDimensions(not including connectors)......................15.5 cm by 10.6 cm(6.10 in. by 4.17 in.)I/O connector..........................................68-pin VHDCIEnvironmentalThe NI 6143 is intended for indoor use only.Operating EnvironmentAmbient temperature range....................0 to 50 °C (tested in accordancewith IEC-60068-2-1 andIEC-60068-2-2)Relative humidity range..........................10 to 90%, noncondensing(tested in accordance withIEC-60068-2-56)Altitude...................................................2,000 m (at 25 °C ambienttemperature)NI 6143 © National Instruments Corporation 9NI 6143 SpecificationsStorage EnvironmentAmbient temperature range....................–20 to 70 °C (tested in accordancewith IEC-60068-2-1 and IEC-60068-2-2)Relative humidity range.........................5 to 95%, noncondensing(tested in accordance with IEC-60068-2-56)Shock and VibrationOperational shock..................................30 g peak, half-sine, 11 ms pulse(Tested in accordance with IEC-60068-2-27. Test profile developed in accordance with MIL-PRF-28800-F.)Random vibrationOperating ........................................5 to 500 Hz, 0.3 g rmsNonoperating ..................................5 to 500 Hz, 2.4 g rms(Tested in accordance with IEC-60068-2-64. Nonoperating test profile exceeds the requirements ofMIL-PRF-28800-F, Class 3.)Note Clean the device with a soft, non-metallic brush. Make sure that the device iscompletely dry and free from contaminants before returning it to service.SafetyThis product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:•IEC 61010-1, EN 61010-1•UL 3111-1, UL 61010B-1•CAN/CSA C22.2 No. 1010.1Note For UL and other safety certifications, refer to the product label, or visit /hardref.nsf , search by model number or product line, and click theappropriate link in the Certification column.National Instruments™, NI™, ™, NI-DAQ™, and RTSI™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or /patents .© 2004 National Instruments Corp. All rights reserved.370835A-01Feb04*370835A-01*Electromagnetic CompatibilityEmissions................................................EN 55011 Class A at 10 mFCC Part 15A above 1 GHz Immunity ................................................EN 61326:1997A2:2001, Table 1EMC/EMI...............................................CE, C-Tick, and FCC Part 15(Class A) CompliantNote For EMC compliance, you must operate this device with shielded cabling.CE ComplianceThis product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows:Low-Voltage Directive (safety).............. 73/23/EEC Electromagnetic CompatibilityDirective (EMC)..................................... 89/336/EECNote Refer to the Declaration of Conformity (DoC) for this product for any additionalregulatory compliance information. To obtain the DoC for this product, visit /hardref.nsf , search by model number or product line, and click theappropriate link in the Certification column.。
NI-PXIe4496数据采集卡中文翻译
NI-PXI4496——声音和振动数据采集综述NI PXI449X和PXIE449X高精度数据采集卡是专门为声音和振动而设计的应用。
每个模块为16通道24位模拟输入,并且为IEPE恒流信号调节。
NI449X采集卡是制作精密测量与麦克风,加速度计和其他传感器的理想元件,具有非常大的动态范围。
采集卡提供高达114分贝的动态范围,同时采样所有16通道的速率高达204.8KS/S。
此外,该采集卡包括反混淆滤波器自动调整采样率和软件可配置的输入增益高达30分贝。
NI449x数据采集卡一般适用于车载音响测试;噪声,振动,严厉的噪音振动(NVH)分析;大型麦克风阵列和动态结构性测试。
这些数据采集卡是与NI声音和振动测量分析软件套件兼容的,可以完成您的应用程序中各种各样的时间和频率测量包括倍频程和阶次分析。
图1 NI-PXI4496数据采集卡主要技术参数⑴16通道模拟输入。
⑵24位分辨率ADC(模数转换器)。
⑶最大数据采样速率:204.8kS/s。
⑷动态范围:114dB。
⑸增益+20dB。
⑹输入范围:±10V 其中正极最大工作电压为±10V,负极最大工作电压±1V。
其中正极过电压保护±30V,负极过电压保护±5V。
⑺软件可配置的4 mA IEPE和TEDS用于麦克风和加速度计⑻交流耦合(AC)3dB截止频率为0.5hz。
表一 NI4496规格说明表二 NI4496输入/输出表三NI4496 物理标准分析性能:⑼功率谱⑽变焦FFT⑾分数倍频程分析⑿振动级测量⒀谱图⒁瞬态分析技术综述模拟输入操作每一路输入信号都是同时被缓冲,放大,模拟过滤,由24位高精度采样模数转换器(ADC)执行截止频率的数字滤波,自动调整一个软件可编程的采样率。
高分辨率提供了必要的准确性使得NI449x数据采集卡很好的适合音频和振动分析应用程序。
在NI4496中,一个可编程增益放大器在输入阶段提供0dB,20dB增益的选择。
数据采集卡(待完善)
基础知识
方乐 2019年10月23日
什么是数据采集卡?
数据采集是指对设备被测的模拟或数字信号,自动采集并送到上 位机中进行分析、处理。
数据采集卡,即实现数据采集功能的计算机扩展卡,可以通过 USB、PXI、PCI、PCI Express、火线(1394)、PCMCIA、ISA、 Compact Flash、485、232、以太网、各种无线网络等总线接入计算 机。
采样频率:单位时间采集的数据点数,与AD芯片的转换一个点 所需时间有关,例如:AD转换一个点需要T=10us,则其采样频率 f=1/T为100K(即100kHz),即每秒钟AD芯片可以转换100K的数据 点数。常有100K、250K、500K、800K、lM、40M等。
03.技术参数(缓存)
缓存:主要用来存储AD芯片转换后的数据。带缓存板卡可以设 置采样频率,否则不可改变。缓存有RAM和FIFO两种。FIFO主要用 作数据缓冲,存储量不大,速度快;RAM一般用于高速采集卡,存储 量大,速度较慢。
01.分类(处理信号)
③:现在电能计量的常用方法是电能脉冲计量法,即使电能表转盘每 转一圈便输出一个或两个脉冲,用输出的脉冲数代替转盘转动的圈数, 并将脉冲量通过计数器计数后输入测控装置,由CPU进行存储、计算。
01.分类(总线PCI)
PCI是Peripheral Component Interconnect(外设部件互连标准)的缩 写,它是目前个人电脑中使用最为广 泛的接口,几乎所有的主板产品上都 带有这种插槽。PCI插槽也是主板带有 最多数量的插槽类型,在目前流行的 台式机主板上,ATX结构的主板一般 带有5~6个PCI插槽,而小一点的 MATX主板也都带有2~3个PCI插槽, 可见其应用的广泛性。
NI B,E,M,S,X系列数据采集设备校准程序(翻译)
校准程序B/E/M/S/X系列关于NI-DAQ mx这个文件包含了NI-DAQ B/E/M/S/X系列数据采集设备的校准须知。
这个文件没有讨论编程技术或者编译程序。
NI-DAQ mx驱动包含了编译程序须知和详细的函数功能说明的在线帮助文件。
当你在校准计算机上安装NI-DAQ mx后,你能添加这些帮助文件。
内容协议。
2 软件。
3 文档。
3 校准区间。
4 密码。
4 测试设备。
4 测试条件。
6 校准程序。
6 初始化安装。
7 自我校准。
7 设备温度测控。
8 验证程序。
9 模拟输入验证。
10模拟输出验证。
15 计数器验证。
18 调整程序。
20 测试限度。
23 M系列测试极限NI6250/6251/6224/6255/6259----16-位分辨率。
601协议下面是出现在手册中的协议。
》这个引号引导你进入菜单栏,对话框选择最后功能,File>>Page Setup>>Options的顺序引导依次为菜单,安装页,选择,直到最后对话框。
插图显示注释,报警你有重要信息。
图为警告符,建议你采取预防措施,避免损坏设备,数据丢掉,系统破坏。
当符号出现,提及第一安全信息,介绍预防措施。
2Bold 黑粗体正文,你必须选择或链接软件,例如菜单和对话框选择,粗体正文也表示参数名称和硬件标签。
italic斜体正文表示变量,强调参考或介绍一个关键概念,为正文主题,你必须提供一个词或数值形式。
Mono space显示特征,你应从键盘输入片段代号。
例如编程,句法,用于磁盘驱动器的真名,路径,目录,程序,子程序,设备名称,函数,操作,变量,文件名和扩展名。
Mono space italic 这种字体表示斜体文本中的文本,是你必须提供的一个词或数值占位符。
Platform 这种字体的文本显示一个特殊的平台,表明接下来的文本仅应用于那个平台。
软件最新NI-DAQ mx驱动的校准要求。
包括NI-DAQ mx 高级函数调用,以简化的任务来为校准设备写软件。
NI公司按照采样频率排序 采集卡十强
NI公司采集卡按照采样频率排序:1NI PXI-611512位, 10 MS/s/通道, 同步采样多功能DAQRMB 34,770 - RMB 43,460模拟输入: 4 DI · 10 MS/s/通道· 12 bits 模拟输出: 2 · 4 MS/s · 12 bits数字I/O:8 DIO · 10 MHz计时器/定时器: 2 · 24 bits · 20 MHz2NI PCI-611512位, 10 MS/s/通道, 同步采样多功能DAQRMB 31,455 - RMB 40,150模拟输入: 4 DI · 10 MS/s/通道· 12 bits 模拟输出: 2 · 4 MS/s · 12 bits数字I/O:8 DIO · 10 MHz计时器/定时器: 2 · 24 bits · 20 MHz3NI PCI-611012位, 5 MS/s/通道, 同步采样多功能DAQRMB 26,075模拟输入: 4 DI · 5 MS/s/通道· 12 bits 模拟输出: 2 · 4 MS/s · 16 bits数字I/O:8 DIO计时器/定时器: 2 · 24 bits · 20 MHz4NI PCI-611112位, 5 MS/s/通道, 同步采样多功能DAQRMB 19,450模拟输入: 2 DI · 5 MS/s/通道· 12 bits 模拟输出: 2 · 4 MS/s · 16 bits数字I/O:8 DIO计时器/定时器: 2 · 24 bits · 20 MHz5NI PXIe-612416位, 4 MS/s, 同步采样多功能DAQRMB 28,970模拟输入: 4 DI · 4 MS/s/通道· 16 bits 模拟输出: 2 · 4 MS/s · 16 bits数字I/O:24 DIO · 10 MHz计时器/定时器: 2 · 32 bits · 80 MHz6NI PXI-613214位, 3 MS/s/通道, 同步采样多功能DAQRMB 15,725模拟输入: 4 DI · 2.5 MS/s/通道· 14bits数字I/O:8 DIO · 10 MHz计时器/定时器: 2 · 24 bits · 20 MHz测量类型:数字, 频率, 正交编码器,电压7NI PXI-613314位, 3 MS/s/通道, 同步采样多功能DAQRMB 21,935 - RMB 25,245模拟输入:8 DI · 2.5 MS/s/通道· 14 bits 数字I/O:8 DIO · 10 MHz计时器/定时器: 2 · 24 bits · 20 MHz测量类型:数字, 频率, 正交编码器, 电压8NI PCI-613314位, 3 MS/s/通道, 同步采样多功能DAQRMB 21,935 - RMB 25,245模拟输入:8 DI · 2.5 MS/s/通道· 14 bits 数字I/O:8 DIO · 10 MHz计时器/定时器: 2 · 24 bits · 20 MHz测量类型:数字, 频率, 正交编码器, 电压9NI PCI-613214位, 2.5 MS/s/通道, 同步采样多功能DAQRMB 15,725模拟输入: 4 DI · 2.5 MS/s/通道· 14 bits 数字I/O:8 DIO · 10 MHz计时器/定时器: 2 · 24 bits · 20 MHz测量类型:数字, 频率, 正交编码器, 电压10NI PCIe-6363X系列数据采集RMB 13,240模拟输入:32 SE/16 DI · 2 MS/s · 16 bits 模拟输出: 4 · 2.86 MS/s · 16 bits数字I/O:48 DIO · 10 MHz计时器/定时器: 4 · 32 bits · 100 MHz。
ni数据采集卡
ni数据采集卡1. 简介NI数据采集卡(National Instruments Data Acquisition Card)是一种用于采集模拟信号和数字信号的硬件设备。
它可以将外部信号转换为计算机可读取的数字数据,从而实现数据采集、数据处理和数据分析等功能。
NI数据采集卡常用于科学研究、工程应用和实验教学等领域。
2. 功能特点NI数据采集卡具有以下主要功能特点:2.1 模拟信号输入NI数据采集卡可以接收模拟信号的输入,并将其转换为数字信号进行处理。
它具有高精度的模拟输入通道,可适应不同信号类型和信号范围的输入需求。
通过采集卡提供的软件接口,用户可以方便地配置和控制模拟输入参数。
2.2 模拟信号输出除了模拟信号输入功能外,NI数据采集卡还可以输出模拟信号。
用户可以通过采集卡的输出通道,将数字信号转换为模拟信号输出到外部设备,如执行器、显示器等。
这样可以实现对外部设备的控制和观测。
2.3 数字信号输入和输出NI数据采集卡除了支持模拟信号输入输出,还具备数字信号输入输出的功能。
它可以读取和写入数字信号,用于采集和控制数字设备,如开关、传感器等。
数字信号的输入输出通常更快速和稳定,可以满足实时性要求较高的应用需求。
2.4 多通道采集NI数据采集卡通常具有多个模拟输入通道和数字输入通道,可以同时采集多个信号。
这使得它可以广泛应用于多通道数据采集和处理的场景,如声音信号采集、振动信号采集等。
2.5 软件支持NI数据采集卡配套的软件十分强大,可以提供丰富而易用的数据采集和处理功能。
用户可以通过软件界面对采集卡进行配置和控制,实现数据的实时监控、录制和分析。
常见的软件包括NI LabVIEW和NI Measurement Studio等。
3. 应用领域NI数据采集卡广泛应用于以下领域:3.1 科学研究在科学研究领域,NI数据采集卡被广泛应用于物理实验、化学实验、生物实验等。
它可以帮助科研人员采集实验数据,进行数据分析和模型建立。
PXI测试仪器使用指南
PXI使用指南版本记录更新次序更新时间版本号更改内容0 2010-07-17 V1.0 第一次下发一、PXI硬件安装1、PXI硬件安装过程请参见PXI自带的《NI PXI-1042 Series User Manual》。
2、注意事项:1)安装板之前,首先要除去板卡螺丝上的橡胶帽。
2)安装板卡过程中,不要带电操作。
3)要注意板卡之前的相对位置,如高速设备(如PXI4461、PXI5105等)不要与开关矩阵(如2530)相邻。
4)要对准插槽位置,使用板卡自带的把手,不要用力过猛。
5)所有板卡安装完毕之后,要上紧所有螺丝;没有安装板卡的位置要安装挡板。
二、PXI操作系统配置1、操作系统安装硬件安装完毕之后,首先要完成操作系统的安装。
1)开机,按电源键开机。
2)显示器显示“Windows XP Professional Setup”的欢迎界面,点击[Next]。
(以下双引号内“”,表示为显示器显示的内容或标题;若无任何操作说明,则保持默认设置)。
3)“License Agreement”,选中I accept this agreement,并点击[Next]。
4)“Regional and Language Options”,点击[Next]。
5)“Personalize Your Software”,Name:ms,Organization:Goertek,点击[Next]。
6)“Computer Name and Administrator”,Computer Name:机器编号,如WB-15(在PXI 机箱上的绿色标签上;若无,保持默认),Password为空,点击[Next]。
7)“Date and Time Settings”,点击[Next]。
8)“Networking Settings”,点击[Next]。
9)“Workgroup or Computer Domain”,点击[Next]。
NI PXI矢量网络分析仪,帮助半导体和移动设备制造商降低测试成本
NI PXI矢量网络分析仪,帮助半导体和移动设备制造商降低测
试成本
佚名
【期刊名称】《国外电子测量技术》
【年(卷),期】2012(31)12
【摘要】2012年12月-美国国家仪器公司(National Instruments,简称NI)
发布了NI NI PXIe-5632VNA,它经进一步优化,可帮助工程师满足日益复杂的
射频测试要求,而其成本、尺寸和使用所需时间仅是传统堆叠式解决方案的极小一部分。
新的PXIeVNA基于创新型的双源架构,频率范围为300kHz至8.5GHz,拥有独立调整的源代码和源接入循环,
【总页数】1页(P70-70)
【关键词】测试成本;矢量网络分析仪;设备制造商;Instruments;半导体;美国国家仪器公司;移动;测试要求
【正文语种】中文
【中图分类】TN407
【相关文献】
1.NI模块扩展PXI平台的功能,降低半导体研究分析和测试的成本——每个引脚
数字参数测量和高密度的源测量单元模块都是半导体研究、测试的理想选择 [J],
无
2.NI最新推出6.6GHz PXI Express射频矢量信号分析仪和矢量信号发生器--新
型射频模块化仪器和PXI Express机箱为用户提供快捷灵活的无线测量功能 [J],
无
3.NI PXI矢量网络分析仪 [J],
4.NIPXI矢量网络分析仪助力半导体和移动设备制造商降低测试成本 [J],
5.PXI矢量网络分析仪降低测试成本 [J],
因版权原因,仅展示原文概要,查看原文内容请购买。
NI 446x采集卡说明书
NI 446x SpecificationsThis document lists specifications for the NI PCI/PXI-4461 and NI PCI/PXI-4462 (NI446x) Dynamic Signal Acquisition (DSA) devices. These specifications are typical at 25°C unless otherwise stated. The operating range for the PXI-446x is0to55°C, and the operating range for the PCI-446x is 0 to 50°C. All accuracies listed are valid for up to one year from the time of the device external calibration. All specifications are subject to change without notice. Visit /manuals for the most current specifications and product documentation.Caution The inputs of this sensitive test and measurement product are not protected for electromagnetic interference for functional reasons. As a result, this product may experience reduced measurement accuracy or other temporary performance degradation when cables are attached in an environment with electromagnetic interference present. Refer to the Declaration of Conformity (DoC) for this product for details of the standards applied to assess electromagnetic compatibility performance. To obtain the DoC, visit /certification, search by model number or product line, and click the appropriate link in the Certification column.Analog InputThis section lists the NI446x analog input (AI) specifications.Input CharacteristicsNumber of simultaneously sampled input channels NI4461 (2)NI4462 (4)Input configuration.........................Differential orpseudodifferential (50Ωbetween negative inputand chassis ground), eachchannel independentlysoftware selectable Input coupling.................................AC or DC, each channelindependently softwareselectableA/D converter (ADC) resolution....24 bits ADC type.........................................Delta-sigmaSample rates (f s),samples-per-second (S/s).................1kS/s to 204.8kS/s in181.9μS/s increments,maximumADC modulator oversample rate1.0kS/s≤f s≤51.2kS/s..............128f s51.2kS/s<f s≤102.4kS/s..........64 f s102.4kS/s<f s≤204.8kS/s........32 f sSample Clock Timebase RateRatio between sample rate (f s) and sample clock timebase rateFIFO buffer size..............................2,047 samplesData transfers...................................Direct memory access(DMA)Input Common Mode Range Input Overvoltage Protection Differential configuration...............±42.4V pkPseudodifferential configurationPositive terminal.........................±42.4V pk Negative terminal (shield)..........±10.0V pkInput Signal RangeTransfer CharacteristicsAI Offset (Residual DC)Sample Rate (f s)Sample Clock Timebase Rate Low-FrequencyAlias RejectionEnabled(Default)Low-FrequencyAliasRejectionDisabled1.0kS/s≤f s≤1.6kS/s16,384f s512f s 1.6kS/s<f s≤3.2kS/s8,192f s3.2kS/s<f s≤6.4kS/s4,096f s6.4kS/s<f s≤12.8kS/s2,048f s12.8kS/s<f s≤25.6kS/s1,024f s25.6kS/s<f s≤51.2kS/s512f s51.2kS/s<f s≤102.4kS/s256f s256f s 102.4kS/s<f s≤204.8kS/s128f s128f sGain(dB)Input Differential*Pseudodifferential*≥0+±12V pk±12V pk–±12V pk±10V pk<0+±42.4V pk±42.4V pk–±42.4V pk±10V pk* Voltages with respect to chassis groundGain (dB)Full-Scale Range (V pk)* 30±0.31620±1.0010±3.160±10.0–10±31.6–20±42.4* Each input channel gain is independently software selectable.Gain(dB)DC-CoupledOffset*, †, Max,T cal‡ ±5°C(±mV)DC-Coupled Offset*,Max, Over OperatingTemperature Range(±mV) 300.11200.22100.5300.77–10530–20770* Source impedance≤50Ω.† Listed offset is valid 24 hours following a self calibration.‡ T cal=ambient temperature at which last self calibration was performed.NI 446x © National Instruments Corporation 3NI 446x SpecificationsAI Gain Amplitude Accuracy1kHz input toneT cal ±5 °C....................................±0.03dB max(T cal =ambient temperature at which last self calibration was performed.)(Listed accuracy is valid 24 hours following a self calibration.)Over operatingtemperature range.......................±0.2dB maxAmplifier CharacteristicsInput ImpedanceCommon-Mode Rejection Ratio (CMRR)Dynamic Characteristics 1AC coupling–3dB cutoff frequency...............3.4Hz –0.1dB cutoff frequency...........22.6HzInput Impedance Differential Configuration Pseudodifferential Configuration Between positive input and chassis ground Betweennegative input and chassis ground50Ω1 M Ω217 pF|| 1 M Ω217 pF||1 M Ω229 pF||Gain (dB)DC-Coupled CMRR (dBc)*, †AC-Coupled CMRR (dBc)†, ‡3010570201011090080–20, –106065* ≤1kHz† Differential configuration ‡ 50 or 60Hz1 Test system equipped with a liquid crystal display (LCD) monitor for AI noise and distortion measurements to avoid possiblemagnetic interference caused by cathode ray tube (CRT)-based monitors.Specification Low-Frequency Alias RejectionEnabled (Default)Low-Frequency Alias Rejection Disabled Alias-free bandwidth (BW) (passband)DC to 0.4 f s DC to 0.4535 f s Alias rejection, minimum 104dBc120dBcAlias rejection by frequencyInput frequency >0.6f s0.5465f s <input frequency <127.4535f s ,where 1.0kS/s ≤f s ≤51.2kS/s 0.5465f s <input frequency <63.4535f s ,where 51.2kS/s <f s ≤102.4kS/s 0.5465f s <input frequency <31.4535f s ,where 102.4kS/s <f s ≤204.8kS/s–3dB BW 0.484f s0.491f sFigure 1. Magnitude Response of AC Coupling Circuit (1Hz to 1kHz)Figure 2. Phase Response of AC Coupling Circuit (1Hz to 1kHz)NI 446x © National Instruments Corporation 5NI 446x SpecificationsADC Filter DelayAI FlatnessLow-Frequency Alias Rejection Enabled (Default)Low-Frequency Alias Rejection Disabled Sample Rate (kS/s)Filter Delay (Samples)Sample Rate (kS/s)Filter Delay (Samples)1.0≤f s ≤1.632.96875 1.0≤f s ≤1.6631.6<f s ≤3.233.9375 1.6<f s ≤3.23.2<f s ≤6.435.875 3.2<f s ≤6.46.4<f s ≤12.839.75 6.4<f s ≤12.812.8<f s ≤25.647.512.8<f s ≤25.625.6<f s ≤204.86325.6<f s ≤204.8Gain (dB)DC-Coupled Flatness * (dB),Max (Typical)20Hz to 20kHz 20Hz to 45kHz 20Hz to 92.2kHz 0, 10, 20, 30±0.006 (±0.003)±0.03 (±0.02)±0.1 (±0.08)–20, –10±0.2 (±0.1)±0.6 (±0.33)±1 (±0.55)* Relative to 1kHzNI 446x Specifications AI Spectral Noise DensityAI spectral noise density(with EAR turned on)......................8nV/ at 30dB gain,1kHzFigure 3. AI Spectral Noise Density (30dB Gain)AI Idle Channel NoiseAI Spurious Free Dynamic Range (SFDR)HzSample Rate (kS/s)Idle Channel Noise *, †dBV rms μV rms 1.0kS/s ≤f s <51.2kS/s –118dBV rms 1.3μV rms 51.2kS/s ≤f s <102.4kS/s –115dBV rms 1.8μV rms 102.4kS/s ≤f s ≤204.8kS/s–111dBV rms2.8μV rms* Source impedance ≤50Ω† 30dB gainGain Setting (dB)SFDR (dBc)*, †, ‡301060, 10, 20108–20, –10110* f s = 204.8kS/s† 1kHz input tone, input amplitude is the lesser of –1dBFS or 8.91V pk .‡ Measurement includes all harmonics.–10–20–30–40–50–60–70–80–90–100–110–120–130–140–150–160Figure 4. SFDR 51.2kS/s (–1dBFS, 0dB Gain, 1kHz Sine Wave Input)–10–20–30–40–50–60–70–80–90–100–110–120–130–140–150Figure 5. SFDR 102.4kS/s (–1dBFS, 0dB Gain, 1kHz Sine Wave Input)© National Instruments Corporation7NI 446x SpecificationsNI 446x Specifications Figure 6. SFDR 204.8kS/s (–1dBFS, 0dB Gain, 1kHz Sine Wave Input)AI Dynamic Range–150–140 –130 –120 –110 –100 –90–80 –70 –60 –50 –40 –30 –20 –10 0 Gain Setting(dB)Dynamic Range (dBFS)*, Min (Typical)1kS/s ≤f s ≤51.2kS/s51.2kS/s <f s ≤102.4kS/s102.4kS/s <f s ≤204.8kS/s30103 (105)100 (102)96 (98)20111 (113)108 (110)104 (106)10114 (117)111 (114)106 (110)0116 (118)113 (114)107 (110)–10107 (108)104 (105)101 (102)–20105 (107)102 (104)98 (101)* 1kHz input tone, –60dBFS input amplitude© National Instruments Corporation 9NI 446x SpecificationsAI Total Harmonic Distortion (THD), Balanced SourceAI THD, Unbalanced SourceFigure 7. AI THD (Balanced Source with Differential Configuration, 204.8kS/s, 0dB Gain)AI THD Plus Noise (THD+N), Balanced SourceGain (dB)THD (dBc)*, †20Hz to 20kHz20Hz to 92.2kHz30–100–9720–109–1060, 10–107–104–10–108–107–20–107–106* f s = 204.8kS/s, 92.8kHz BW, differential configuration† Input amplitude is the lesser of –1dBFS or 8.91V pk .Gain (dB)THD (dBc)*, †20Hz to 20kHz20Hz to 92.2kHz30–100–9320–106–9410–105–920–97–87–10–90–88–20–91–89* f s = 204.8kS/s, 92.8kHz BW† Input amplitude is the lesser of –1dBFS or 8.91V pk .Gain (dB)THD+N (dBc)*51.2kS/s 20Hz to 20kHz †204.8kS/s 20Hz to 92.2kHz ‡30–103–9420–107–9510–108–960–107–96–10–96–91–20–94–88* Input amplitude is the lesser of –1dBFS or 8.91V pk ,differential configuration.† 23.2kHz measurement BW ‡ 92.8kHz measurement BWGain (dB)THD+N (dBc)*51.2kS/s 20Hz to 20kHz †204.8kS/s 20Hz to 92.2kHz ‡AI THD+N, Unbalanced SourceAI Intermodulation Distortion (IMD) Crosstalk, Input Channel Separation AI Interchannel Gain MismatchAI Interchannel Phase MismatchNote All gain and phase mismatch specificationsare for the same device and are not applicablebetween different NI 446x devices.AI Phase LinearityOnboard Calibration ReferenceDC level..........................................5.000V±2.5mV Temperature coefficient..................±5ppm/°C maxLong-term stability.........................±15ppm/Gain (dB)THD+N (dBc)*51.2kS/s20Hz to20kHz†204.8kS/s20Hz to92.2kHz‡30–103–9120–107–9310–108–910–104–87–10–94–86–20–93–86* Input amplitude is the lesser of –1dBFS or 8.91V pk.† 23.2kHz measurement BW‡ 92.8kHz measurement BWGain (dB)IMD (dBc)*20, 30–10910–1070–104–20, –10–111* CCIF 14kHz+15kHz, each tone amplitude is the lesser of –6dBFS or 5V pk.Gain (dB)Crosstalk for Adjacent (Nonadjacent)Channels (dBc)*, †1kHz Signal92.2kHz30–130 (–140)–110 (–124) 0, 10, 20–138 (–145)–110 (–124)–20, –10–96 (–124)–60 (–108) * Source impedance≤50Ω† Input amplitude is the lesser of –1dBFS or 8.91V pk.Gain(dB)DC-Coupled Mismatch(dB)*AC-CoupledMismatch(dB)*20Hz to20kHz20Hz to92.2kHz20Hz300.0040.0080.0040, 10, 200.0030.003–20, –100.040.250.006* Identical channel configurationsGain(dB)DC-Coupled Mismatch(deg)*AC-CoupledMismatch(deg)*20Hz to20kHz20Hz to92.2kHz20Hz300.100.600.08200.040.150, 100.0150.08–20, –100.71* Identical channel configurationsGain (dB)Linearity (deg)20Hz to 20kHz20Hz to 92.2kHz 0, 10, 20, 30±0.01±0.03–20, –10±0.10±11,000 hrNI 446x © National Instruments Corporation 11NI 446x SpecificationsIntegrated Electronic Piezoelectric (IEPE)Current............................................0mA, 4mA ±15%,or 10mA ±15%, each channelindependently software selectable Compliance.....................................24V minNote Use the following equation to make sure that your configuration meets the IEPE compliance voltage range.V common-mode + V bias + V full-scale must be 0 to 24 V,whereV common-mode is the common-mode voltage seen by the input channel,V bias is the DC bias voltage of the sensor, and V full-scale is the AC full-scale voltage of the sensor.Channel input impedancewith IEPE enabled ..........................,pseudodifferential Current noise...................................Transducer Electronic Data Sheet (TEDS) SupportThe PCI-4461, PCI-4462, PXI-4461 (revision M or later), and PXI-4462 inputs support Transducer Electronic Data Sheet (TEDS) according to the IEEE 1451 Standard. For more information about TEDS, go to /info and enter the info code rdteds .Analog Output (NI 4461 Only)This section lists the NI 4461 analog output (AO) specifications.Output CharacteristicsNumber of output channels.............2, simultaneouslysampled Output configuration.......................Differential orpseudodifferential (50Ω to chassis ground on shield), each channel independently software selectable DAC resolution...............................24 bits DAC type........................................Delta-sigmaUpdate rates (f s )...............................1kS/s to 204.8kS/s in181.9μS/s increments, maximumDAC modulator oversample rate1.0kS/s ≤f s ≤1.6kS/s................8,192f s 1.6kS/s <f s ≤3.2kS/s................4,096f s 3.2kS/s <f s ≤6.4kS/s................2,048f s 6.4kS/s <f s ≤12.8kS/s..............1,024f s 12.8kS/s <f s ≤25.6kS/s............512f s 25.6kS/s <f s ≤51.2kS/s............256f s 51.2kS/s <f s ≤102.4kS/s..........128f s 102.4kS/s <f s ≤204.8kS/s........64f sFIFO buffer size..............................1,023 samples Data transfers...................................DMAOutput Signal RangeTransfer CharacteristicsAO Offset (Residual DC)Gain (Amplitude Accuracy)Specifications valid at any attenuation setting with a 1kHz output signal.T cal ±5 °C....................................±0.04dB max(T cal =ambient temperature at which last self calibration was performed.)(Listed accuracy is valid 24 hours following a self calibration.)Over operating temperaturerange............................................±0.1dB max1 M Ω240 pF ||()<300 pA Hz⁄Attenuation (dB)Full-Scale Range (V pk )*40±0.120±1.00±10.0* Each output channel range is independently softwareselectable.Attenuation(dB)Maximum Offset *, T cal ±5 °C †(±mV)Maximum Offset, Over Operating Temperature Range (±mV)20, 40120110* Listed offset is valid 24 hours following a self calibration.† Tcal =ambient temperature at which last self calibration was performed.NI 446x Specifications Voltage OutputOutput coupling...............................DCShort circuit protection....................Indefinite protectionbetween positive and negative Minimum working load...................600ΩOutput ImpedanceDynamic Characteristics 1Image rejection................................75dB min < 768kHz,66dB min > 768kHz –3dB BW........................................0.487f s DAC filter delay (samples), for update rate 1.0kS/s ≤f s ≤1.6kS/s................36.61.6kS/s <f s ≤3.2kS/s................36.83.2kS/s <f s ≤6.4kS/s................37.46.4kS/s <f s ≤12.8kS/s..............38.512.8kS/s <f s ≤25.6kS/s............40.825.6kS/s <f s ≤51.2kS/s............43.251.2kS/s <f s ≤102.4kS/s..........48.0102.4kS/s <f s ≤204.8kS/s........32.0AO FlatnessAll attenuation settings relative to 1kHz20Hz to 20kHz..........................±0.008dB max 20Hz to 92.1kHz.......................±0.1dB maxAO Idle Channel NoiseAO Spurious Free Dynamic Range (SFDR)AO Dynamic RangeOutput Impedance Differential ConfigurationPseudodifferential ConfigurationBetweenpositive output and chassis ground 2.4k Ω70ΩBetweennegative output and chassis ground 2.4k Ω50ΩBetween positive and negative outputs22Ω22Ω1 Test system equipped with an LCD monitor for AO noise and distortion measurements to avoid possible magnetic interferencecaused by CRT-based monitors.Attenuation(dB)Maximum Idle Channel Noise102.5kS/s (30kHz BW)*204.8kS/s (80kHz BW)*204.8kS/s (500kHz BW)*dB V rms μV rms dB V rms μV rms dB V rms μV rms 40–1065–1019–874520–1065–1019–86500–9616–9323–73224* Noise equivalent bandwidthAttenuation (dB)SFDR (dBc)*, †, ‡40872094098* f s=204.8kS/s† 1kHz output frequency, –1dBFS output amplitude‡ Measurement includes all harmonics.Attenuation (dB)Minimum Dynamic Range (dBFS)*102.5kS/s (30kHz BW)†204.8kS/s (80kHz BW)†204.8kS/s (500kHz BW)†40837864201039883011311090* 1 kHz output frequency, –60 dBFS output amplitude † Noise equivalent bandwidth© National Instruments Corporation 13NI 446x SpecificationsAO THDFigure 8. AO THD (204.8kS/s, 0dB Gain, 65,536 Samples, 92.8kHz Measurement BW)AO THD+NAO Intermodulation Distortion (IMD)Attenuat ion (dB)THD (dBc)*102.5kS/s 20Hz to 20kHz †204.8kS/s 20Hz to 20kHz ‡204.8kS/s 20Hz to92.1kHz ‡40–99–92–9220–98–95–930–97–94–83* –1dBFS output amplitude † 30kHz measurement BW ‡ 92.8kHz measurement BWAttenuat ion (dB)THD+N (dBc)*102.5kS/s 20Hz to 20kHz †204.8kS/s 20Hz to 80kHz ‡204.8kS/s 20Hz to 92.1kHz **40–83–76–6320–98–92–790–97–86–68* –1dBFS output amplitude † 30kHz measurement BW ‡ 80kHz measurement BW ** 500kHz measurement BWAttenuation (dB)IMD (dBc)*40–9920–1040–104* CCIF 14kHz +15kHz, each tone amplitude is –6dBFS.Crosstalk, Output to Input Channel SeparationCrosstalk, Output Channel SeparationAll attenuation settings (0, 20, and 40 dB)1 kHz signal................................No measurable crosstalk92.1 kHz signal...........................–110 dBcAO Interchannel Gain MismatchAll attenuation settings20Hz to 92.1kHz.......................0.03dBAO Interchannel Phase MismatchAll attenuation settings20Hz to 20kHz..........................0.1°20Hz to 92.1kHz.......................0.2°Note All gain and phase mismatch specificationsare for the same device and are not applicablebetween different NI 446x devices.AO Phase Linearity Internal Frequency Timebase Characteristics Accuracy.........................................±20ppm, over operatingtemperature range Aging..............................................8ppm in first year;5 ppm max/year afterfirst yearTriggersAnalog triggerPurpose.......................................Start triggerSourceNI4461..................................AI0 or AI1NI4462..................................AI0, AI1, AI2, or AI3 Level...........................................Full scale, programmable Slope...........................................Positive (rising) ornegative (falling),software selectable Resolution...................................24 bitsHysteresis...................................ProgrammableDigital TriggerPurpose.......................................Start or reference trigger Source.........................................PFI0, PXI_Trig<0..6>Compatibility..............................Transistor-transistor logic(5V TTL)Polarity.......................................Rising or falling edgeMinimum pulse width................10nsGeneral SpecificationsThis section lists general specification information for theNI446x.Bus InterfacePCI or PXI......................................3.3 V or 5 V signalenvironmentDMA channelsNI 4461.......................................2, analog input andanalog output NI 4462.......................................1, analog inputSynchronizationPXICLK_10......................................Multiple, full chassisPXI_STAR.................................Up to 14 devices perchassisPCIRTSI...........................................Up to 3 devices acrossribbon cableGain (dB)Crosstalk (dBc)*, †1kHz Signal92.1kHz30–151–118 20–150–11810–144–1150–137–111–20, –10–87–51* Source impedance≤50Ω† Output amplitude is the lesser of –1dBFS or 8.91V pk.Attenuation(dB)Linearity (deg)20Hz to20kHz20Hz to92.1kHz0±0.1±1.720±0.1±1.640±0.1±1.8NI 446x Power RequirementsPhysicalDimensions (not including connectors)PCI..............................................17.5 cm × 9.9 cm(6.9 in. × 3.9in.)PCI slotPXI..............................................16cm × 10cm(6.3in. × 3.9in.)3U CompactPCI slot Analog I/O connectors....................BNC femaleDigital trigger connector.................SMB maleWeightPCI..............................................226.8g (8.0oz)PXI..............................................241g (8.5oz) Measurement Category1 (I)Caution Do not use the NI446x for connections tosignals or for measurements within Categories II,III, or IV.EnvironmentalOperating EnvironmentAmbient temperature rangePXI-446x....................................0 to 55 °C(Tested in accordancewith IEC-60068-2-1and IEC-60068-2-2.) PCI-446x.....................................0 to 50 °C(Tested in accordancewith IEC-60068-2-1and IEC-60068-2-2.)Relative humidity range..................10 to 90%,noncondensing(Tested in accordancewith IEC-60068-2-56.) Altitude............................................2,000 m (at 25 °C ambienttemperature)Pollution Degree(indoor use only) (2)Storage EnvironmentAmbient temperature range.............–20 to 70 °C(Tested in accordancewith IEC-60068-2-1and IEC-60068-2-2.)Relative humidity range..................5 to 95%, noncondensing(Tested in accordancewith IEC-60068-2-56.)Shock and Vibration (PXI Only)Operational shock............................30g peak, half-sine,11ms pulse(Tested in accordancewith IEC-60068-2-27.Test profile developedin accordance withMIL-PRF-28800F.)Voltage NI PXI-4461NI PCI-4461NI PXI-4462NIPCI-4462+5V990mA2,200mA990mA1,900mA+3.3V1,430mA1,750mA1,750mA2,300mA+12V170mA40mA130mA100mA–12V110mA40mA70mA40mA1 Measurement Category is also referred to as Installation Category.© National Instruments Corporation15NI 446x SpecificationsNational Instruments, NI, , and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on /legal for more information about NationalInstruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the National Instruments Patent Notice at /patents .© 2004–2008 National Instruments Corporation. All rights reserved.373770J-01Dec08Random vibrationOperating ....................................5 to 500Hz, 0.3g rms Nonoperating ..............................5 to 500Hz, 2.4g rms(Tested in accordance with IEC-60068-2-64. Nonoperating test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)CalibrationSelf-calibration................................On software command,the device computes gain and offset corrections relative to high-precision internal reference.Interval........................................Recommended wheneverambient temperature differs from T cal by more than ±5 °C External calibration interval............1 year Warm-up time..................................15 minutesSafetyThis product meets the requirements of the followingstandards of safety for electrical equipment for measurement, control, and laboratory use:•IEC 61010-1, EN 61010-1•UL 61010-1, CSA 61010-1Note For UL and other safety certifications, refer to the product label or the Online Product Certification section.Electromagnetic CompatibilityThis product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:•EN 61326 (IEC 61326): Class A emissions; Basic immunity•EN 55011 (CISPR 11): Group 1, Class A emissions •AS/NZS CISPR 11: Group 1, Class A emissions •FCC 47 CFR Part 15B: Class A emissions •ICES-001: Class A emissionsNote For the standards applied to assess the EMC of this product, refer to the Online Product Certification section.Note For EMC compliance, operate this product according to the documentation.CE ComplianceThis product meets the essential requirements of applicable European Directives as follows:•2006/95/EC; Low-V oltage Directive (safety)•2004/108/EC; Electromagnetic Compatibility Directive (EMC)Online Product CertificationRefer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit /certification , search by model number orproduct line, and click the appropriate link in the Certification column.Environmental ManagementNI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.For additional environmental information, refer to the NI and the Environment Web page at /environment . This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.Waste Electrical and Electronic Equipment (WEEE)EU Customers At the end of the life cycle, all products must be sent to a WEEE recycling center.For more information about WEEE recyclingcenters and National Instruments WEEE initiatives, visit /environment/weee.⬉ ѻ ∵ ㅵ⧚ ⊩˄Ё RoHS ˅ЁNational Instruments ヺ Ё ⬉ѻ Ё䰤 Փ⫼ ѯ ⠽䋼 Ҹ (RoHS)DŽ ѢNational Instruments Ё RoHS 㾘 ˈ䇋ⱏ /environment/rohs_china DŽ(For information about China RoHS compliance, go to /environment/rohs_china .)。
常用的PXI总线数据采集卡型号及部分指标
PXI2307
PXI8801
PXIC-7314 PXIC-7310 PXIC-7306 PXIC-7318
PXI总线产品\FPGA技术\主DMA\各种触发方式 PXI总线、多路同步、支持主DMA 、多种触发方式
AD模拟量采集
DA模拟量输出
开关量和定时计数器卡 光纤数据采集卡 PXI机箱
AD:单端32路/差分16路 500K 12位 8K字FIFO; 程控增益 高速光隔离
AD:单端32路/差分16路 250K 16位 8K字FIFO 光隔离
AD:单端32路/差分16路 250K 16位 8K字FIFO 14DI、14DO;带计数或脉冲发生功能
DA模拟量输出
DA:4路 16位 每路带16K字FIFO 点频100KHz 量程为±5V、±10V、0~10V 任意波形发生 DA:2路 12位 每路128K字RAM 点频1MHz 量程为±5V、±10V、0~10V 任意波形发生 DA:4路同步任意波形输出 12位 1Ms/s输出频率 每路256KRAM 量程为±5V、±2.5V、0~10V、0~5V
DA:2路同步任意波形输出 12位 1Ms/s输出频率 每路256KRAM AD:单端16\差分8路 100K 12位 8DKAF:IF8O路8D1I2、位8D点O频100KHz DA量程:0~5V、0~10V、±5V、±10V、0~10mA、4~20mA 光隔离 DA:2路同步输出 16位 100Ks/s输出频率 每路16K FIFO 数据传输方式:光纤、PXI可选
光纤数据采集卡 AD:2路差分同步输入,500K 16位 AD缓存8K,光纤缓存:2K FIFO
PXI机箱
3U 14槽PXI/Compact PCI仪器机箱 带500W AC电源 兼容3U PXI/Compact PCI模块 4U高度上架式或桌 面3U安10装槽PXI/Compact PCI仪器机箱 带500W AC电源 兼容3U PXI/Compact PCI模块 4U高度上架式或桌 面3U安6装槽PXI/Compact PCI仪器机箱 带500W AC电源 兼容3U PXI/Compact PCI模块 4U高度上架式或桌 面3U安18装槽PXI/Compact PCI仪器机箱 带500W AC电源 兼容3U PXI/Compact PCI模块 4U高度上架式或桌 面安装
NI 数据采集卡使用说明书
第一章 NI 数据采集卡使用说明书编写人:梅飞一、 安装与配置1. 在安装板卡之前,请首先安装NI-DAQ驱动程序软件。
您可以在随卡附带的光盘内找到这个驱动程序软件。
另外,NI公司的网站上也提供这个驱动程序软件的免费下载:/softlib.nsf/websearch/90B60D5899BCCCDB86256FC700581B 89?opendocument&node=132070_US如果您使用LabVIEW或LabWindows/CVI 等软件来进行编程,需要在安装驱动软件之前先安装开发平台LabVIEW或LabWindows/CVI等软件。
安装过程中,安装程序会提醒您插入DAQ驱动光盘。
2. NI-DAQ驱动软件正确安装后,请关闭计算机,插入数据采集板卡,启动计算机,即可自动找到板卡并安装好,完成整个安装过程。
注意:在安装PCI或者PXI板卡时,一定要将电脑电源关闭;PC机则最好将电源线拔掉,以免电脑主板关机后仍然带电,造成各类损伤。
二、模拟输入说明1. 信号类型根据信号的参考情况, 一个电压源可以分为两类: 接地信号、浮地信号。
接地信号:接地信号是信号的一端直接接地的电压信号。
它的参考点是系统地(例如大地或建筑物的地)。
最常见的接地信号源是通过墙上的电源插座接入建筑物地的设备,例如信号发生器和电源供电设备等。
浮地信号:一个不与任何地(如大地或建筑物的地)连接的电压信号称为浮地信号。
一些常见的浮地信号有电池、热电偶、变压器和隔离放大器。
2. 测量方式按信号连接方式不同可分为三种测量方式:差分(DIFF);参考单端(RSE);非参考单端(NRSE)。
注意:NI公司的部分型号数据采集卡不一定完全支持上述三种测量方式,请查询对应数采卡的使用手册。
按测量方式分类可以分为以下两大类测试系统:1)差分测试系统(DIFF)可避免接地回路干扰可避免因环境引起的共模干扰当输入信号有以下情况时,使用差分测试系统:低电平信号(例如小于1V)。
NI数据采集卡使用入门
NI数据采集卡使用入门NI (National Instruments) 数据采集卡是一种专门用于测量和记录各种类型的电信号、模拟信号和数字信号的硬件设备。
该采集卡被广泛应用于科研实验室、工业自动化和测试测量等领域。
本文将为您介绍如何使用NI数据采集卡进行基本的数据采集和分析。
首先,确保您已经安装了NI数据采集卡及其相关软件。
NI数据采集卡通常需要安装NI-DAQmx驱动软件以及LabVIEW开发环境。
安装完成后,您可以通过电缆将数据采集卡与被测设备连接起来。
接下来,我们需要编写一个简单的数据采集程序。
在LabVIEW中,您可以利用Drag-and-Drop编程的方式轻松构建这样的程序。
首先,打开LabVIEW软件并创建一个新的VI(Virtual Instrument)。
然后,从函数面板中拖放出一个“DAQ Assistant”组件。
在DAQ Assistant界面中,您可以选择数据采集卡的型号,并配置您希望测量的输入通道和参数。
在配置完成后,您需要添加数据保存和分析的功能模块。
您可以从函数面板中选择合适的函数模块,例如“Write to Measurement File”用于保存数据至文件,或者“Signal Processing”模块用于对数据进行处理和分析。
将这些功能模块拖放到主VI中,并根据需求进行参数配置。
在程序编写完成后,您可以通过点击LabVIEW界面中的运行按钮来启动数据采集和分析。
程序会使用预设的配置参数,自动从数据采集卡读取数据,并按照您的设置进行保存和分析。
此外,如果需要对数据进行实时的监测和显示,您可以在LabVIEW界面中添加相应的控件元素。
例如,您可以在Front Panel中添加一个Chart图表控件,用于实时显示采集到的数据。
同样地,您可以从函数面板中选择合适的控制模块,例如“Loop”结构来循环读取数据进行实时显示。
最后,当您完成数据采集和分析后,可以选择将数据保存至文件或者导出至其他软件进行进一步的处理。
ni采集卡原理
ni采集卡原理ni采集卡是一种用于数据采集和信号处理的硬件设备。
它通常由一个采集芯片、接口电路和逻辑控制电路组成。
其工作原理是通过接口电路将外部信号传递给采集芯片,然后由采集芯片完成信号的模数转换,并通过逻辑控制电路进行处理和存储。
ni采集卡的采集芯片起到了关键作用。
采集芯片通常是一种高精度的模数转换器,它能够将连续的模拟信号转换为数字信号。
这种转换过程是通过将模拟信号分成许多小的时间片段,并在每个时间片段内对信号进行采样来实现的。
采样率越高,转换的精度就越高,因此ni采集卡的采样率往往是一个重要的指标。
接口电路是将外部信号传递给采集芯片的桥梁。
它负责将各种类型的信号转换为适合采集芯片输入的信号。
接口电路通常包括放大器、滤波器和信号调理电路等。
放大器可以将微弱的信号放大到适合采集芯片的工作范围内,滤波器可以滤除噪声和杂散信号,而信号调理电路可以将信号调整为采集芯片所需的电平和波形。
逻辑控制电路是ni采集卡的大脑。
它负责控制采集芯片的工作模式、采样率和采样深度等参数,并将采集到的数据进行处理和存储。
逻辑控制电路通常由微处理器、存储器和时钟电路等组成。
微处理器可以根据预设的算法对采集到的数据进行实时处理,存储器可以暂时保存采集到的数据,时钟电路可以提供准确的时间基准。
ni采集卡的工作原理可以概括为:将外部信号经过接口电路传递给采集芯片,采集芯片将信号转换为数字信号,再由逻辑控制电路进行处理和存储。
通过这一系列的操作,ni采集卡可以实现对各种信号的高精度采集和实时处理,广泛应用于科学研究、工业自动化、医学诊断等领域。
ni采集卡是一项重要的数据采集和信号处理技术。
它通过采集芯片、接口电路和逻辑控制电路的协同工作,实现了对各种信号的高精度采集和实时处理。
在各个领域中,ni采集卡都发挥着重要的作用,为科学研究和工业应用提供了可靠的数据支持。
NI数据采集卡选用指南
NI数据采集卡选用指南随着工业自动化程度的不断提高,数据采集卡在各个行业中的应用越来越广泛。
数据采集卡是将模拟信号转换为数字信号并传输到计算机中进行处理的设备,其在工业控制、仪器仪表、医疗设备等领域起着至关重要的作用。
但是在众多数据采集卡产品中选择一款适合自己需求的产品并不容易,本文将为您提供一份数据采集卡选用指南,帮助您选择一款性能优良、稳定可靠的数据采集卡。
首先,在选择数据采集卡之前,需要明确自己的需求和应用场景。
比如,您需要采集什么类型的信号(模拟信号、数字信号、温度信号等)、采集信号的数量、采集信号的精度要求、采集信号的频率等。
只有明确了这些需求,才能更好地选择适合自己的数据采集卡。
其次,在选择数据采集卡时需要考虑的因素有很多,比如采集精度、采集速度、输入通道数量、信号类型、传输接口等。
在采集精度方面,一般来说,采集精度越高,数据的准确性就越高,但在实际应用中也需要根据具体需求来选择适合的采集精度。
采集速度方面,不同的数据采集卡采集速度不同,一般来说,采集速度越快,数据的实时性就越好。
在输入通道数量方面,需要根据实际需求选择具有足够输入通道数量的数据采集卡。
信号类型方面,需要根据采集信号的种类选择支持相应信号类型的数据采集卡。
传输接口方面,需要选择适合的接口连接计算机和数据采集卡,比如PCI接口、USB接口、以太网接口等。
另外,还需要考虑数据采集卡的可靠性和稳定性。
可靠性指的是数据采集卡在长时间工作中的稳定性和可靠性,而稳定性指的是数据采集卡在各种环境下的稳定性。
因此,在选择数据采集卡时需要选择那些具有优良质量和稳定性的产品,以确保数据采集的准确性和可靠性。
最后,在选择数据采集卡时还需要考虑其性价比。
性价比指的是数据采集卡的性能和价格之比,在选择数据采集卡时并不是价格越高性能就越好,而是需要根据实际需求选择适合的产品,既要考虑性能也要考虑价格,使性能与价格达到一个平衡,达到最佳的性价比。
NI公司采集卡仪器询价
基于USB接口型号NI USB-4432
采用NI公司USB-4432模块,五通道,正负40伏电压输入,USB供电,即插即用,可以直接接涡流传感器、速度传感器、IEPE、光电传感器等各类传感器,包含旋转机械振动瞬态分析、稳态分析功能,广泛应用于电力、石化、冶金、航空等领域。
性能参数:动态声压分析上限101 Db,
价格:17835元
基于PXI的型号NI PXIe-4499
性能
采样率高达204.8 kS/s的16路同步采样模拟输入
24位分辨率ADC具有114 dB动态范围
高达+30 dB的4种增益设置可以保证输入信号的范围从±316 mV至10 V
软件可配置的4 mA IEPE和TEDS用于麦克风和加速度计
0.5 Hz的交流耦合模拟输入
在一个PXI Express机箱中, 以全带宽实现多达272路通道的同步
价格:80320
基于PCI的型号NI PCI-4461
性能:
118dB动态范围;24位分辨率
最高采样和更新速率达204.8kS/s
2路同步模拟输入,2路同步模拟输出
软件可选的IEPE调理和AC/DC耦合
输入范围±316mV-42.4V的6种增益设置
内置式防混叠和TEDS功能
价格:31600
该软件能实现的一些功能
图1 软件界面图
图2 伯德图
图3 波形图
图4 阶比图谱
图5 频谱图
图6 趋势图
图7 轴心轨迹图
图8 轴中心位置图
图9 三层叠图
图10 三维瀑布图。
国家信号科技NI PXIe-5603板卡说明书
Board Model Name Board Part Number RangeNI PXIe-5603 199572X-01 including all letter revisionsManufacturer: National InstrumentsVolatile MemoryUser Accessible/ BatteryType1Size System Accessible2Backup? Purpose Method of Clearing3ASIC 208 b No/Yes No PCI communication Cycle powerFPGA BRAM 576 Kb No/Yes No List mode instruction storage Cycle powerNon-Volatile MemoryUser Accessible/ BatteryType Size System Accessible Backup? Purpose Method of ClearingFLASH 4 Mb No/Yes No Device enumeration None available to user FLASH 4 Mb No/Yes No Calibration data storage None available to user FLASH 32 Mb No/Yes No Calibration data storage None available to userMedia StorageUser Accessible/ BatteryType Size System Accessible Backup? Purpose Method of ClearingNONEClearing Notes:User Access:In order to clear the user accessible portion of the PXIe-5603 calibration memory, the user must write a known value to the user string field in the calibration memory. This can be accomplished using the following code excerpt:1 Calibration constants that are stored in device calibration memory include information for the device’s full operating range. Calibration constants do not maintain any unique data for specific configurations in which the device is used unless otherwise specified.2 Items are designated No for the following reason(s): a) Hardware changes or a unique software tool from National Instruments are required to modify contents of the memory listed. b) Hardware modifying software tools are not distributed to public users for any personal access or customization; also known as non-normal use.3 The designation None Available to User indicates that the ability to clear the memory is not available to the user under normal operation. The utilities required to clear the memory are not distributed by National Instruments to customers for normal use.Calibration API:The PXIe-5601 has a user accessible calibration API (Application Programming Interface) for LabVIEW. This API allows the user to perform following calibrations manually, which re-writes the stored calibration constants:1.Downconverter Gain2.LO Export Calibration3.Baseline Calibration Store for Self CalibrationDocumentation for the use of this API is listed in the NI RF Vector Signal Analyzers Help file.If the user performs a manual calibration of this module in a classified location, they may be required to re-calibrate under “default” or “normal” use conditions before the device is cleared for removal from the classified location. These “default” or “normal” use conditions for re-calibration will be defined by the user and the approving declassification group.Self Calibration:The PXIe-5603 also has self calibration capability using the niRFSA Self Cal VI that allows the user to perform a calibration with the currently associated modules. The new calibration constants are stored in the self calibration area in the calibration memory.If the user performs a self calibration of this module in a classified location, they may be required to re-run the self calibration under “default” or “normal” use conditions before the device is cleared for removal from the classified location. These “default” or “normal” use conditions for re-calibration will be defined by the user and the approving declassification group.Terms and DefinitionsUser Accessible User accessible memory allows the user to directly write or modify the contents of the memory during normal instrument operation.System Accessible System accessible memory does not allow the user to access or modify the memory during normal instrument operation, however, may be accessed or modified by background processes. This can be something that is not deliberate by the user and can be a background driver implementation, such as storing application information in RAM to increase speed of use. Under normal use conditions user data is not written to any non-volatile memory locations by the system.Cycle Power The process of completely removing power from the device and its components. This includes a complete shutdown of the PC and/or chassis containing the device; a reboot is not sufficient for the completion of this process.Volatile Memory Volatile memory requires power to maintain the stored information. When power is removed from this memory, its contents are lost.Non-Volatile Non-volatile memory retains its contents when power is removed. This type of memory typically contains calibration or chip configuration information, such as power up states.。
NI B,E,M,S,X系列数据采集设备校准程序(翻译)
校准程序B/E/M/S/X系列关于NI-DAQ mx这个文件包含了NI-DAQ B/E/M/S/X系列数据采集设备的校准须知。
这个文件没有讨论编程技术或者编译程序。
NI-DAQ mx驱动包含了编译程序须知和详细的函数功能说明的在线帮助文件。
当你在校准计算机上安装NI-DAQ mx后,你能添加这些帮助文件。
内容协议。
2 软件。
3 文档。
3 校准区间。
4 密码。
4 测试设备。
4 测试条件。
6 校准程序。
6 初始化安装。
7 自我校准。
7 设备温度测控。
8 验证程序。
9 模拟输入验证。
10模拟输出验证。
15 计数器验证。
18 调整程序。
20 测试限度。
23 M系列测试极限NI6250/6251/6224/6255/6259----16-位分辨率。
601协议下面是出现在手册中的协议。
》这个引号引导你进入菜单栏,对话框选择最后功能,File>>Page Setup>>Options的顺序引导依次为菜单,安装页,选择,直到最后对话框。
插图显示注释,报警你有重要信息。
图为警告符,建议你采取预防措施,避免损坏设备,数据丢掉,系统破坏。
当符号出现,提及第一安全信息,介绍预防措施。
2Bold 黑粗体正文,你必须选择或链接软件,例如菜单和对话框选择,粗体正文也表示参数名称和硬件标签。
italic斜体正文表示变量,强调参考或介绍一个关键概念,为正文主题,你必须提供一个词或数值形式。
Mono space显示特征,你应从键盘输入片段代号。
例如编程,句法,用于磁盘驱动器的真名,路径,目录,程序,子程序,设备名称,函数,操作,变量,文件名和扩展名。
Mono space italic 这种字体表示斜体文本中的文本,是你必须提供的一个词或数值占位符。
Platform 这种字体的文本显示一个特殊的平台,表明接下来的文本仅应用于那个平台。
软件最新NI-DAQ mx驱动的校准要求。
包括NI-DAQ mx 高级函数调用,以简化的任务来为校准设备写软件。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
NI-PXI4496——声音和振动数据采集综述NI PXI449X和PXIE449X高精度数据采集卡是专门为声音和振动而设计的应用。
每个模块为16通道24位模拟输入,并且为IEPE恒流信号调节。
NI449X采集卡是制作精密测量与麦克风,加速度计和其他传感器的理想元件,具有非常大的动态范围。
采集卡提供高达114分贝的动态范围,同时采样所有16通道的速率高达204.8KS/S。
此外,该采集卡包括反混淆滤波器自动调整采样率和软件可配置的输入增益高达30分贝。
NI449x数据采集卡一般适用于车载音响测试;噪声,振动,严厉的噪音振动(NVH)分析;大型麦克风阵列和动态结构性测试。
这些数据采集卡是与NI声音和振动测量分析软件套件兼容的,可以完成您的应用程序中各种各样的时间和频率测量包括倍频程和阶次分析。
图1 NI-PXI4496数据采集卡主要技术参数⑴16通道模拟输入。
⑵24位分辨率ADC(模数转换器)。
⑶最大数据采样速率:204.8kS/s。
⑷动态范围:114dB。
⑸增益+20dB。
⑹输入范围:±10V 其中正极最大工作电压为±10V,负极最大工作电压±1V。
其中正极过电压保护±30V,负极过电压保护±5V。
⑺软件可配置的4 mA IEPE和TEDS用于麦克风和加速度计⑻交流耦合(AC)3dB截止频率为0.5hz。
表一 NI4496规格说明表二 NI4496输入/输出表三NI4496 物理标准分析性能:⑼功率谱⑽变焦FFT⑾分数倍频程分析⑿振动级测量⒀谱图⒁瞬态分析技术综述模拟输入操作每一路输入信号都是同时被缓冲,放大,模拟过滤,由24位高精度采样模数转换器(ADC)执行截止频率的数字滤波,自动调整一个软件可编程的采样率。
高分辨率提供了必要的准确性使得NI449x数据采集卡很好的适合音频和振动分析应用程序。
在NI4496中,一个可编程增益放大器在输入阶段提供0dB,20dB增益的选择。
另外,这个数据采集卡包括对换能器电子数据表读写能力的智能传感器以及在软件中选择处理IEPE恒流或者关闭。
NI4496使用的是一种被认为高精度调制的AD转换方法。
采用这种技术,输入信号被过采样或者以几倍于选择的数据率采样,然后应用到数字滤波器。
NI4496数据卡将高精度调制模数转化器一体化,从而在具有优秀的相位线性度的同时保持低噪声和失真。
另外,这类模数转化器可以使采集卡免除与传统数据采集设备相联系的差分非线性的失真。
抗混叠在工程测量中,采样频率不可能无限高也不需要无限高。
在进行动态信号测试中测量仪器必须具有抗混叠功能,采用滤波器滤除高于1/2采样频率的部分,NI4496也不例外。
所有的输入通道在硬件上同时使用模拟和数字滤波器的实现以防止混叠。
信号首先经过固定的模拟过滤器来去除超出模数转化器频率范围之外的信号成分。
然后数字反混叠滤波器自动调整截止频率,来清除任何超过编程采样率一半以上的频率成分。
这个专门的结构就意味着不需要再添加额外的外部滤波器,来防止混叠。
PXI versus PXI ExpressPXI (PCI eXtensions for Instrumentation,面向仪器系统的PCI扩展) 是一种由NI公司发布的坚固的基于PC的测量和自动化平台。
PXI结合了PCI的电气总线特性与CompactPCI的坚固性、模块化及Eurocard机械封装的特性发展成适合于试验、测量与数据采集场合应用的机械、电气和软件规范。
制订PXI规范的目的是为了将台式PC的性能价格比优势与PCI总线面向仪器领域的必要扩展完美地结合起来,形成一种主流的虚拟仪器测试平台。
这使它成为测量和自动化系统的高性能、低成本运载平台。
其中PXI Express总线接口技术是对PXI平台最新的表达。
PXI总线接口规范使串行接口信号与PXI标准一体化,增加了底板带宽,从132 MB/s 到 6 GB/s,相当于提高了45倍。
通过融合一个100 MHz微分参考时钟和微分触发器,这也增强了PXI定时和同步的特性。
由于单个PXI模块具有16路同步通道,其密度是其余任何接受同步采样的NI设备的2倍。
当您在18槽PXI机箱中使用NI PXI-4496时,可同步多达272路通道。
且由于该模块接受了具备DAQmx通道扩展功能的NI-DAQmx 的编程,因而单通道、16路通道或272路通道的数据采集代码相同。
甚至针对更大的噪音测绘麦克风阵列、动态结构测试或数据读写应用,您也能在多机箱的PXI 系统中同步超过13,000条通道。
PXI-4496模块具有每条通道204.8 kS/s的最高采样率,并包括针对无误差设置的TEDS智能传感器支持。
触发NI4496数据采集卡模拟和数字的采集触发均有两种操作模式,即启动触发和参考触发。
触发消息可以来源于任何模拟输入通道,外部数字触发输入,或PXI总线触发。
外部数字触发器,是5V TTL/cmos兼容的,被上升沿或者下降沿的选择而激活。
在开始使用时触发模式时,NI449 x数据采集卡只有在触发条件已经发生的情况下才能获得信号。
在参考触发模式下,设备可以在触发条件发生前或后获得信号。
经常使用应用程序或者瞬态信号触发。
例如,当测量因为敲打而造成的机械结构振动,采集的加速度计信号由敲打影响触发。
信号连接无线宽带技术NI449x采集卡使用两个4x无线宽带连接器,每个连接器有8个模拟输入通道,AI0-7和AI8-15。
4X InfiniBand广泛应用于性能优越的计算应用,因为它能通过输入信号线对之间的屏蔽板提供绝佳的信号完整性,从而减少串扰之间的输入.NI提供各种线缆选件,包括:配备8个BNC连接器的一款屏蔽式分支电缆(breakout cable)和配备32个BNC连接器的一款19英寸机架式适配器。
图2 BNC连线⑴直接连接BNC一个屏蔽了无线宽带的BNC电缆,NI SHB4X-8BNC可以使两个包直接连接到NI449x数据采集卡。
每个电缆的一端是449x连接器,另一端则是BNC接口输入。
图3 BNC-2144⑵机架安装BNCNI BNC-2144是4496的信号连接器配件。
在前面它有32个BNC接口输入,在背面则是个4x无线带宽连接器可供两个NI449x数据采集卡使用。
软件PXI-4496模块的编程借助了NI-DAQmx,并适于同NI声音和振动测量套件配合使用。
NI声音和振动测量套件提供信号处理功能,用于音频测量、分数倍频程分析、频率分析、瞬态分析和阶次跟踪。
实现交互式软件体验的NI声音与振动助手,能够快速采集、分析并记录声学、噪音和振动数据。
NI4496数据采集卡非常适合于噪声和振动分析程序,你可以使用一套NI声音和振动测量套件明确地解决问题。
其中有两个部分,一部分是声音和振动助手,另一部分是labview分析软件,用于分析功率谱,频率响应,分数倍频程分析,噪声级测量,谱图,阶次图,顺序提取,校准传感器,人类振动滤波器,扭转振动。
声音和振动助手声音和振动助手是一个交互式软件,被设计用来简化采集过程,具有很多优点。
它可以借助可立即执行的应用程序范例,尽可能缩短开发时间,无需labview 便可快速启动声音和振动助手,也可以可借助DAQ配置XControl,比以往更快创建自定义数据采集系统,同时结合符合NI ANSI和符合NI IEC的倍频程和音质分析,避免验证上的花销,结合并行处理,缩减测试时间。
它包含各类声音与振动分析功能。
提供从连续频率响应扫描到阶次分析和转速表处理的易用型分析工具。
提供众多显示选择,如:强度图、瀑布图、轴中心线图和轨道图。
轻松运用非编程环境。
其中分析噪声和振动信号需要以下几个条件:⑴一个拖放的,交互式采集和分析环境。
⑵快速测量配置。
⑶通过labview扩展功能。
⑴交互式分析环境交互式环境适合在时域和频域中进行基本的声音与振动分析。
包含数据记录功能。
无需编程。
声音和振动助手引进了一个创新的方法来配置测量,即使用直观的拖放的步骤。
结合传统的噪音和振动的功能分析,软件可以灵活定制和自动操作例程,声音和振动助手可以帮助你简化你的应用程序。
⑵快速测量配置有很多内置的步骤可供立即使用声音和振动助手。
你可以立即配置测量和分析应用程序如下:①硬件I/O接口-从一系列设备中生成和采集信号。
②信号处理-滤波,加窗和平均。
③时域分析-声音和振动级的趋势。
④频域分析- ANSI和IEC分数倍频程分析,频率响应,中功率,和失真。
⑤阶次分析-转速表处理,阶次功率谱分析,阶次追踪,顺序提取,瀑布图,波特图,谱图。
⑥报告生成-可以拖拽到Microsoft Word图表或将数据导出到微软Excel或UFF58中。
⑶通过Labview扩展功能将项目传送到到labview方框图中,重新使用你的测量应用程序开发声音和振动助手。
在labview,一个全功能的图形编程环境下,您可以进一步自动化您的应用程序或定制你的分析。
labview中的声音和振动采集虚拟仪器labview中声音和振动分析能见度虚拟仪器,可以开发各种自定义音频、声学和振动的应用程序。
功能包括:⑴分数倍频程分析与A - B -,和c-加权⑵积分或者双重积分的振动级⑶A-,B-和c-加权⑷功率谱⑸放大功率谱⑹峰值搜索⑺中功率⑻频率响应⑼滤波⑽阶次追踪⑾测速信号处理此外,在labview中提供了超过50个随时可以运行的例子可以使它更容易开始噪音和振动分析。
硬件安装确认设备识别⑴双击桌面上的Measurement & Automation图标,打开MAX。
⑵展开设备和接口,确认设备已被识别。
如使用远程实时终端,展开远程系统,找到并展开远程终端,然后打开设备和接口。
如设备未显示,请按<F5> 刷新MAX。
配置设备(1)右键单击设备名并选择配置。
确保在控制设备的NI-DAQ API 和系统(我的系统或远程系统)文件夹下单击该设备名。
对于网络DAQ 设备,单击设备名称并选择网络设置选项卡,配置网络设置。
关于配置网络DAQ 设备的详细信息,请参考设备的说明文档。
(2)配置设备属性。
如使用附件,需添加附件信息。
单击扫描TEDS。
如需在MAX 中配置直连至设备的TEDS 传感器,右键单击“设备和接口”下的设备名,然后选择配置TEDS。
(3)单击确定保存设置。
安装信号调理或开关设备附加传感器运行测试面板按照下列步骤使用MAX 测试面板。
⑴在MAX 中,展开设备和接口或设备和接口»网络设备。
⑵右键单击要测试的设备,选择测试面板,打开选中设备的测试面板。
⑶单击顶部的选项卡,选择开始测试设备的功能,或选择帮助查看操作须知。
⑷如测试面板显示错误消息。
⑸单击关闭退出测试面板。
进行NI-DAQmx测量按照下列步骤,在MAX 中通过DAQ 助手创建任务:⑴在MAX 中右键单击数据邻居,并选择新建,打开DAQ 助手。