Thermal Response Test for Kelix GHE System

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关于热解析仪的原理介绍

关于热解析仪的原理介绍

关于热解析仪的原理介绍热解析仪(Thermal Analyzer),简称TA仪器,是一种利用物质受热性质变化的仪器,主要用于对各种材料的热稳定性、热热化学反应、热物理性能等进行研究分析。

目前常用的热解析仪有热重分析仪(TGA)和差热分析仪(DSC),两种仪器常常同时使用。

热重分析仪(TGA)热重分析仪能够对样品进行恒温升温或恒温保温,同时对样品进行精确称量,从而得到样品随温度热质变率的变化曲线。

在TGA仪器中,当样品被加热到极高的温度时,它的化学组成会发生变化,此时会释放出气体,这些气体会被传送到气体分析仪中进行分析。

热重分析仪的工作原理是利用高精度电子秤,当样品加热时,样品的质量随时间发生变化,电子秤能够实时检测到此变化,从而得到样品质量随温度变化的曲线。

在TGA测试中,样品被置于宝石石英杯中,然后放入升温器中进行加热。

当样品发生热分解时,气体会经由封闭的通道进入气体分析仪中进行分析。

TGA仪器能够提供关于样品热稳定性、固相反应等重要信息。

差热分析仪(DSC)差热分析仪是通过量测物质在温度变化过程中吸收或释放的热量差测定样品的热态性质的分析仪器。

在DSC测试中,样品与惰性参考样品一起装入样品盒中,然后将样品盒加热或冷却。

通过检测样品与参考样品之间的温差差,即可计算出样品与空气或参比材料进行反应吸/放热的热效应信息。

差热分析仪的工作原理是通过测定样品与参考样品在加热或冷却过程中的温度差,从而定量测定出样品吸收或放出的热量,从而得到样品的热物理性质,如固-液-气相转变温度,等温液相性,分解反应动力学参数等。

DSC测试的优点是能够同时提供关于样品的热力学性质及应用范围的指导。

差热分析仪主要应用于各种材料的热物理性能研究。

TA仪器的应用TA仪器广泛应用于化学、材料、化工、药物、食品、冶金、工业等各个领域。

TA仪器可以用于研究材料的热稳定性、固相反应、相变等方面而被广泛应用。

TA仪器的应用举例:•材料领域:用于研究材料的热力学性质、物性变化、炭化过程、腐蚀特性等;•化学领域:用于研究化合物热稳定性、氧化反应、聚合反应、硫代谢作用等;•食品领域:用于研究食品成分的分解反应、食品加工过程中成分变化、食品稳定性等;•药物领域:用于研究药物热分解、热酸降解、聚集过程、吸附过程等;•工业领域:用于研究燃烧反应、氧化还原反应、合成反应等工业过程。

热分析实验室技术手册说明书

热分析实验室技术手册说明书

Testing Laboratories for Thermal AnalysisAshland Inc.TW-1/L-1665200 Blazer ParkwayDublin, OH 43017Contact: Tom GrentzerPhone: 614/790-4665 Fax: 614/790-4294E-mail:*********************TA Techniques: DSC, MDSC , PDSC, TGA, TMA, DMASpecialties: thermoplastics, thermoset resins, composites, adhesivesAspen Research Co.1700 Buerkle Rd.White Bear Lake, MN 55110Contact: Cheryl HolmesPhone: 651/264-6264 Fax: 651/264-6270E-mail:*************************TA Techniques: DSC, TGA, TMA, DMASpecialties: general materials characterizationBall Aerospace SystemsP.O. Box 1062Boulder, CO 80306Contact: Roland ManningPhone: 303/939-4317 Fax: 303/939-4430TA Techniques: DSC, TGA, DMA, TMASpecialties: plastics, aerospace, resins, compositesBAS Analytics2701 Kent Ave.West Lafayette, IN 47906Contact: Robert GregoryPhone: 765/497-8345 Fax: 765/497-8393E-mail:**************************TA Techniques: TGA, SCTA, TGA, MTGA , TGA/IR, DSC, MDSC , TMA Specialties: GMP/GLP regulated samples, especially pharmaceuticals; method development John Brown Associates, Inc.329 Main Ave.Stirling, NJ 07980Contact: John BrownPhone: 908/647-6890 Fax: 908/647-4202TA Techniques: DSC, TGA, TMASpecialties: polymers, inorganics, pharmaceuticalsCanadian Explosives Research Laboratory555 Booth StreetOttawa, ON Canada, K1A 0G1Contact: Dr. D.E.G. JonesPhone: 613/995-2140 Fax: 613/995-1230E-mail:***************.caTA Techniques: DSC, TGA, Hi-Res TGA, ARC , C80, PDSC, FTIR/MSSpecialties: energetic and hazardous materials (ISO/IEC Guide 25 accredited)Celsis Laboratory Group-NJ Division165 Fieldcrest Ave.Edison, NJ 08837Contact: David ChesbroPhone: 732/346-5100 Fax: 732/346-5115E-mail:*******************TA Techniques: DSC, TGASpecialties: polymers, pharmaceuticalsCoorsTek600 Ninth St.Golden, CO 80401Contact: Dan SchmidtPhone: 303/277-9962 Fax: 303/277-4601TA Techniques: DSC, DTA, TGA, TMA, DMASpecialties: ceramics, automotive, aerospaceDallas Laboratories, Inc.P.O. Box 152837Dallas, TX 75315Contact: Kevan W. JonesPhone: 214/565-0593 Fax: 214/565-1094TA Techniques: DSC, TGASpecialties: sealants, polymers, coatings, resins, rubbersDayton, University ofCenter for Basic & Applied Polymers Research300 College ParkDayton, OH 45469-0130Contact: Dr. Richard ChartoffPhone: 937/229-2517 Fax: 937/229-2530E-mail:*********************.eduTA Techniques: DSC, PDSC, TGA, TMA, DMA, DEA, µTASpecialties: rubbers, plastics, adhesives, composites, aerospace, automotive, and miscellaneous offerDetroit Testing Laboratory, Inc.7111 East 11 Mile Rd.Warren, MI 48092Contact: Tim GeigerPhone: 810/754-9000 Fax: 810/754-9045E-mail:*******************TA Techniques: DSC, TGA, TMASpecialties: plastics/composites, aerospace, automotiveDickten & Masch Mfg. Co.Watertown Plank Rd.Nashota, WI 53058Contact: Michael SepePhone: 262/369-5555 Fax: 262/367-2331E-mail:****************TA Techniques: DSC, PDSC, Hi-Res TGA, TMA, DMA, MDSCSpecialties: plastics, DSC/TGA kinetics, DMA superpositioning, oxidative stability, DMA/TMA stress Ghesquiere Plastics Testing Inc.20450 Harper Ave.Harper Woods, MI 48225Contact: Douglas LeggatPhone: 313/885-3535 Fax: 313/885-1771E-mail:**************TA Techniques: DSC, TGA, TMASpecialties: plastics, polymers, composites, automotiveHauser Laboratories4750 Nautilus Court SouthBoulder, CO 80301Contact: Julie Krause-SinghPhone: 303/581-0079 Fax: 303/581-0195E-mail:********************TA Techniques: DSC, TGA, TMASpecialties: general materials characterizationHawk Integrated Plastics322 Main St.Willimantic, CT 06226Contact: Brad GuilaniPhone: 860/450-1993 Fax: 860/450-1962E-mail:**********************TA Techniques: DSC, MDSC , TGA, Hi-Res TGA, DMASpecialties: plastics, thermosets, coatingsHazen Research, Inc.4601 Indiana St.Golden CO 80403Contacts: Harry Mudgelt/Rod HodgsonPhone: 303/279-4501 Fax: 303/278-1528TA Techniques: HTDTA, TGASpecialties: metallurgical/mineral, combustionICI PaintsStrongsville Research Center16651 Sprague Rd.Strongsville, OH 44136Contact: Mike NeagPhone: 440/826-5318 Fax: 440/826-5233E-mail:**********************TA Techniques: DSC, MDSC , TGA, TMA, DMA, DEASpecialties: polymers, coatings, general analytical services, rheologyImpact Analytical1910 W St Andrews Rd.Midland, MI 48640-2696Contact: Andrew WoodPhone: 989/832-5555 x563 Fax: 989/832-5560E-mail:*************************TA Techniques: DMA, DSC, TGA, TMA, rheometrySpecialties: polymersIntegrix Testing Systems2790 Columbus Road Rt. 16Granville, OH 43023-1200Contact: Dan HeislerPhone: 740/321-7598 Fax: 740/321-4756TA Techniques: DSC, TGASpecialties: polymers, glassesITI Anti-Corrosion, Inc.10175 Harwin, Suite 110Houston, TX 77036Contact: Andrew Sansum or Geoff ByrnesPhone: 713/771-0688 Fax: 713/776-9634E-mail:************************************TA Techniques: DSC, TGASpecialties: coatings, resins, polymers, sealantsLeach & Garner Company87 John L. Dietsch Square, P.O. Box 200North Attleboro, MA 02760Contact: Greg RaykhtsaumPhone: 508/695-7800 Fax: 508/643-1367E-mail:*****************TA Techniques: DSC, HTDTASpecialties: materials sciences, metallurgy, precious metalsArthur D Little, Inc.15 Acorn ParkCambridge, MA 02140Contact: Madeline McComishPhone: 617/498-5131 Fax: 617/498-7056E-mail:***********************TA Techniques: DSC, TGA, TMASpecialties: Broad range of products: foods, plastics, electronics, compositesLockheed Martin Marietta5600 Sand Lake Rd.Orlando, FL 32819Contact: Dr. Linda Lauer/Charles GrameltPhone: 407/356-9236 and 407/356-2782 Fax: 407/356-6980E-mail:**********************TA Techniques: DSC, MDSC , Hi-Res TGA, TMA, DMASpecialties: adhesives, aerospace, ASTM, ceramics, composites, elastomers, material science, metallurgy,microelectronics, MIL-STD, polymers, thermoplastics, thermosetsLouisiana Productivity Center241 East Lewis St., P.O. Box 44172Lafayette, LA 70504-4172Contact: Kevin TaylorPhone: 337/482-5838 Fax: 337/262-5472E-mail:*********************TA Techniques: MDSCSpecialties: thermal conductivity for insulating materialsThe M&P Lab2210 Technology DriveSchenectady, NY 12301Contact: Jan PrincipePhone: 518/382-0082 Fax: 518/382-1182E-mail:**********************TA Techniques: DSC, HPTDTA, TGA, TMASpecialties: complete materials characterization, organic and inorganic chemicals, metallurgical, mechanical, and electrical testingMassachusetts Material Research241 W Boylston St.W Boylston, MA 01583Contact: Vern Coutu/Rachel GabrielPhone: 508/835-6262 Fax: 508/835-9025E-mail:*******************.comTA Techniques: DSC, TGASpecialties: materials characterization, polymers and inorganicsMichigan State UniversityComposite Materials & Structures Ctr2100 Engineering BuildingEast Lansing, MI 48824-1226Contact: Michael RichPhone: 517/353-4696 Fax: 517/432-1634E-mail:************.eduTA Techniques: DSC, TGA, MDSC , Hi-Res TGA, TMA, DMASpecialties: composites, polymersMicro-Scan Service Inc.737 St Davids Lane, P.O. Box 9167Schenectady, NY 12309Contact: Dr. Eileen CarnahanPhone: 518/374-6406 Fax: 518/374-1043E-mail:*****************.comTA Techniques: DSC, TGA, TGA-FTIRSpecialties: plasticsMicrotherm Technologies, Inc.P.O. Box 540007Waltham, MA 02454-0007Contact: Arthur CoatesPhone: 781/891-1113 Fax: 781/891-1113TA Techniques: TMA, DSC, TGA, HTDTASpecialties: general materials characterizationNorthrop Grumman GroupMaterials Evaluation Laboratory500 Hicks Rd.Rolling Meadows, IL 60008Contact: David FisherPhone: 847/259-9600 x5896 Fax: 847/590-3153E-mail:**********************.comhttp://www//esss/dsdlabTA Techniques: DSC, TGA, TMA, DMASpecialties: general materials characterization, commercial and militaryNSWC-Carderock Division9500 MacArthur Blvd.West Bethesda, MD 20817-5700Contact: Dr. Steven DallekPhone: 301/227-5998 Fax: 301/227-5480TA Techniques: DSC, MDSC , TGA, HTDTA, TGA/DTA, TGA/FTIRSpecialties: inorganics, battery electrode materials, nano-crystalline materials, polymers, ceramics, energetic materialsPittsburgh State University-Polymer Research Center1501 S Joplin, Shirk HallPittsburgh, KS 66762Contact: Zoran Petrovic, PhDPhone: 620/235-4928 Fax: 620/232-4919E-mail:**********************TA Techniques: DSC, MDSC , TGA, TMA, DEASpecialties: polymersPolymer Technologies Inc.A subsidiary of the University of Detroit16601 LivernoisDetroit, MI 48221Contact: Paul C. MengnjohPhone: 313/993-1270 Fax: 313/993-1409TA Techniques: DSC, TGA, TMA, DMASpecialties: plasticsPolymod Technologies4146 Engleton Dr.Fort Wayne, IN 46804Contact: Mark SeaburyPhone: 219/436-1322 Fax: 219/432-6051E-mail:**************TA Techniques: DSC, TGA, Hi-Res TGA, TMA, DMASpecialties: plastics, elastomersPowertech Laboratories Incorporated12388-88th Ave.Surrey, B.C. Canada, V3W 7R7Contact: Dennis CartlidgePhone: 604/590-7439 Fax: 604/590-7489E-mail:**********************************TA Techniques: DSC, PDSC, TGA, TMA, DMA, DEASpecialties: polymers, coatings, composites, electrical insulating materials, petroleum products, accelerated aging testsRessel Scientific Company117 Deer Path LaneWeston, MA 02193Contact: Dr. Robert SacherPhone: 781/893-8647 Fax: 781/893-8648TA Techniques: DSC, TGA, TMA, DTA, DMASpecialties: characterization of organic, inorganic, and polymeric materialsRicerca L.L.C.P.O. Box 100Painesville, OH 44077Contact: Gary SweetapplePhone: 440/357-3256 Fax: 440/354-6276E-mail:************************TA Techniques: DSC, TGASpecialties: plastics, organic purities, GLP/GMP testsScience Resources, Inc.2029 Washington Ave., Suite 201Evansville, IN 47714-2257Contact: Bob BehmePhone: 812/473-0125 Fax: 812/473-0126E-mail:********************TA Techniques: DSC, TGA, DMASpecialties: materials characterization, polymers, plastics, pharmaceuticalsSouthern Mississippi, University ofPolymers and High Performance MaterialsSouthern Station Box 10076Hattiesburg, MS 39406-0076Contact: Dr. Lon MathiasPhone: 601/266-4871 Fax: 601/266-5504E-mail:*******************TA Techniques: DSC, TGA, TGA-FTIR, DMASpecialties: polymersSouthwest Research Institute6220 Culebra Rd.San Antonio, TX 78284-5166Contact: Rose WardPhone: 210/522-2024 Fax: 210/522-3270TA Techniques: PDSC, TGASpecialties: petroleum productsSSCI, Inc.3065 Kent AvenueWest Lafayette, IN 47906Contact: Barbara StahlyPhone: 765/463-0112 Fax: 765/463-4722E-mail:********************TA Techniques: DSC, MDSC , TGA, TGA-IRSpecialties: pharmaceuticals, general materials characterizationStork Technimet2345 South 170th St.New Berlin, WI 53151Contact: Jeffrey JansenPhone: 262/782-6344 Fax: 262/782-3653E-mail:*********************.comTA Techniques: DSC, TGA, TGA-FTIR, TMASpecialties: plastics, elastomers, failure analysisTexas Research Institute Inc9063 Bee Caves Rd.Austin, TX 78733-6201Contact: Rock RushingPhone: 512/263-2101 Fax: 512/263-3530TA Techniques: DSC, TGA, TMA, DMASpecialties: material science, polymers, plastics, aerospace, electronicsTulane University605 Lindy Boggs Bldg.New Orleans, LA 70118-5698Contact: Deborah GrimmPhone: 504/865-5142 Fax: 504/865-6768E-mail:*****************TA Techniques: DSC, MDSC , HTDTA, TGA, Hi-Res TGA, Simultaneous TGA-DTA, TGA-MS, TMA, DEASpecialties: polymers, mineralsWashington UniversityChemical Engineering DepartmentOne Brookings Dr., Sever Hall Rm 10St. Louis, MO 63130-4899Contact: Clarence Wolf, PhDPhone: 314/935-6056 Fax: 314/935-7211TA Techniques: DSC, MDSC , TGA, Hi-Res TGASpecialties: polymeric materialsWestern Kentucky UniversityMaterials Characterization Center1 Big Red WayBowling Green, KY 42101Contact: Dr. Wei-Ping PanPhone: 270/780-2532 or Fax: 270/780-2569270/780-2581E-mail:********************TA Techniques: DSC, MDSC , PDSC, TGA, TMA, DMA, DEA, µTA , TGA/FTIR/MS, TGA-GC/MS, rheometrySpecialties: materials characterization, method development, QC service, product quality evaluationTA InstrumentsUnited States, 109 Lukens Drive , New Castle, DE 19720Phone: 1-302-427-4000 • Fax: 1-302-427-4001 • E-mail: i**************United Kingdom • Phone: 44-1-372-360363 • Fax: 44-1-372-360135 • E-mail: ************* Spain • Phone: 34-93-600-9300 • Fax: 34-93-325-9896 • E-mail: ****************Belgium/Luxembourg • Phone: 32-2-706-0080 • Fax: 32-2-706-0081 • E-mail: ****************** Netherlands • Phone: 31-76-508-7270 • Fax: 31-76-508-7280 • E-mail: ********************** Germany • Phone: 49-6023-9647-0 • Fax: 49-6023-96477-7 • E-mail: ****************** France •Phone: 33-1-304-89460 • Fax: 33-1-304-89451 • E-mail: *****************Italy •Phone: 39-02-27421-283 • Fax: 39-02-2501-827 • E-mail: i****************Sweden/Norway •Phone: 46-8-594-69-200 • Fax: 46-8-594-69-209 • E-mail: ***************** Japan • Phone: 813 5479 8418)• Fax: 813 5479 7488 • E-mail: *******************.com Australia •Phone: 613 9553 0813 • Fax: 61 3 9553 0813 • E-mail: ***********************To contact your local TA Instruments representative visit our website at 。

触控面板高低温温度及冲击试验记录

触控面板高低温温度及冲击试验记录

触控面板高低温温度及冲击试验记录触控面板是一种可以取代计算机键盘及鼠标,不要用复杂的程序即可在计算机荧幕上直接用手指或笔以触碰方式输入指令的透明荧幕。

试验记录:高温试验-1 :70℃/40~50%R.H.120小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

高温试验-2:70℃240小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

高温试验-3:80℃1000小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

低温试验-1:-20℃120 小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

低温试验-2:-20℃240 小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

低温试验-3:-40℃1000小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

高温高湿试验:60℃/90~95%R.H.-96小时(必须没有水凝结于待测品),然后离开至室温下静置2小时再行测试(绝缘阻抗值必须要有1MΩ数值),24小时之后在测一次。

高温高湿试验:60℃/90%RH120小时试验结束后室温下静置2小时再行测试,24小时之后在测一次高温高湿试验:70℃/90%RH1000小时试验结束后室温下静置2小时再行测试,24小时之后在测一次。

高温高湿试验-460℃/95%RH-240小时,试验结束后室温下静置2小时再行测试,24小时之后在测一次。

冷热冲击试验-1-20℃(30分钟)↓70℃(30分钟)-10 cycle,试验结束后室温下静置2小时再行测试,24小时之后在测一次。

冷热冲击试验-2-20℃(30分钟)↓80℃(30分钟)-10 cycle,试验结束后室温下静置2小时再行测试,24小时之后在测一次。

冷热冲击试验-3-20℃(1小时)↓80℃(1小时)-10 cycle,试验结束后室温下静置2小时再行测试,24小时之后在测一次。

冷热冲击试验-4-40℃(30分钟)↓80℃(30分钟)-100 cycle,试验结束后室温下静置2小时再行测试,24小时之后在测一次。

热响应测试报告

热响应测试报告

热响应测试报告石家庄地源测试项目岩土热响应研究测试报告天津大学环境学院2010年11月21日石家庄地源测试项目岩土热响应研究测试报告测试人员:编制人:审核人:测试单位:天津大学环境学院报告时间:2010年11月21日目录一、项目概况 ............................................................................... 错误!未定义书签。

二、地埋管换热器钻孔记录 ....................................................... 错误!未定义书签。

2.1钻孔设备................... 错误!未定义书签。

2.2钻孔记录 (5)三、测试目的与设备 (7)四、测试原理与方法 (8)4.1岩土初始温度测试 (8)4.2地埋管换热器换热能力测试 (10)五、测试结果与分析 (11)5.1 测试现场布置 (11)5.2 测试时间 (12)5.3 夏季工况测试 (13)5.4 冬季工况测试 (17)5.5 稳定热流测试 (21)5.6 测试结果 (25)5.7 结果分析 (25)备),主机使用电机功率7.5kW,大泵功率7.5~13kW,泥浆泵功率7.5kW,排泥浆泵功率为3kW,钻孔设备实物如图1所示。

图1 钻孔设备实物图2.2钻孔记录1)A孔钻孔日期为2010年10月10日~2010年10月11日,钻孔直径为298mm,孔深92.5m。

下表为A孔的钻孔记录。

表1 A孔的钻孔记录表时间地层深度(m)岩土特性描述地层厚度(m)7:30~8:30 0~28 20m出现一个硬层288:30~10:00 28~49 49m开始卵石层4910:00~15:0049~52 卵石层52 15:00~52~58 粗砂层5818:00~19:3058~62 泥沙层6219:30~22:40 62~83卵石层和泥沙层8322:40~0:2083~90 卵石层和泥沙层902:00~9:1590~92.5 卵石层92.5垂直地埋管换热器插入钻孔前,应做第一次水压试验,2010年10月11日6:30开始打压,压力为1.6MPa,稳压6小时,无泄漏现象。

热解离子探测器技术参数

热解离子探测器技术参数

热解离子探测器技术参数
热解离子探测器(TID)是一种用于探测和分析气体中离子的仪器,常用于质谱分析和环境监测。

其技术参数包括但不限于以下几
个方面:
1. 离子检测范围,热解离子探测器可以检测的离子种类和范围,包括正离子和负离子。

2. 灵敏度,热解离子探测器的灵敏度指标,即能够检测到的最
小离子浓度或流量。

3. 分辨率,热解离子探测器的分辨率是指其区分不同质荷比的
能力,通常用质荷比(m/z)来表示。

4. 响应时间,热解离子探测器对离子的响应速度,即从离子进
入到信号输出的时间。

5. 工作温度范围,热解离子探测器的工作温度范围,包括环境
温度和探测器本身的工作温度。

6. 质谱范围,热解离子探测器的质谱范围,即能够检测的质荷比范围。

7. 探测器尺寸和重量,热解离子探测器的物理尺寸和重量,这些参数对于实际应用中的便携性和安装需求非常重要。

8. 能耗和电源要求,热解离子探测器的能耗情况和电源要求,包括工作电压和功耗等方面的参数。

以上是热解离子探测器的一些常见技术参数,不同型号和品牌的热解离子探测器可能会有所不同,具体的技术参数需要根据具体的产品手册或规格说明来确认。

导热硅脂测试报告

导热硅脂测试报告

导热硅脂测试报告1. 背景介绍导热硅脂是一种具有优异导热性能的材料,常用于电子设备散热部件的涂覆和填充。

为了评估导热硅脂的导热性能,我们进行了一系列测试和分析。

2. 测试目的本次测试的目的是评估导热硅脂在不同条件下的导热性能,以便为实际应用提供参考和指导。

3. 实验步骤3.1 准备工作首先,我们准备了导热硅脂样品和所需的测试设备。

样品应确保干净和无杂质,测试设备应经过校准和检验以确保准确性。

3.2 测试方法我们选择了热阻测试法来评估导热硅脂的导热性能。

具体步骤如下:1.将导热硅脂均匀涂覆在两个热释电器件之间的接触面上。

2.将热释电器件安装在散热测试台上,并通过电源提供所需的电压。

3.使用红外测温仪测量热阻测试台的表面温度。

4.记录电流和温度数据,计算热阻值。

5.重复上述步骤,测试不同条件下的导热硅脂样品。

3.3 数据分析我们将收集到的数据进行整理和分析,以得出有关导热硅脂导热性能的结论。

主要的分析方法包括:1.绘制热阻值随温度和电流变化的曲线图,观察其趋势和关系。

2.计算平均热阻值,并与标准值进行比较,评估导热硅脂的导热性能是否符合要求。

3.对不同批次或不同厂家的导热硅脂进行比较分析,找出优劣之处。

4. 实验结果经过一系列测试和数据分析,我们得出以下结论:1.导热硅脂的导热性能在较低温度下较好,但随着温度的升高,导热性能逐渐下降。

2.导热硅脂的导热性能与电流大小关系不大,主要受温度影响。

3.样品之间的导热性能存在一定差异,不同批次或不同厂家的导热硅脂性能有所差异。

5. 结论和建议根据我们的测试结果,我们得出以下结论和建议:1.导热硅脂在低温环境下具有较好的导热性能,适用于低温散热应用。

2.在高温环境下,导热硅脂的导热性能下降,应谨慎选择使用。

3.在实际应用中,应根据具体情况选择导热硅脂,并且注意不同批次或不同厂家的性能差异。

6. 总结本次导热硅脂测试报告对导热硅脂的导热性能进行了评估和分析。

我们通过热阻测试法获得了一系列数据,并对其进行了分析和总结。

电子元器件温度冲击试验标准

电子元器件温度冲击试验标准

电子元器件温度冲击试验标准
Thermal Shock
一、目的
本试验目的是为了确定器件经受突然暴露到剧烈变化的温度中的能力。

二、试验仪器、器具、材料
去离子水,烧杯,电炉,电冰箱
三、操作规程
1、用二只烧杯,均盛去离子水,一只放在冰箱中,使之变成冰水(温度为
℃),另一只用电炉煮沸,温度为℃;
2、器件在低温中停留5分钟,从低温到高温的转移时间应小于10S,在高
温中停留5分钟,应进行5~100个完整的循环。

四、试验条件及判据:
环境条件
(1)标准状态
标准状态是指预处理, 后续处理及试验中的环境条件。

论述如下:
环境温度: 15~35℃
相对湿度: 45~75%
(2)判定状态
判定状态是指初测及终测时的环境条件。

论述如下:
环境温度: 25±3℃
相对湿度: 45~75%
试验样品随机抽样22只,0收1退。

五、注意事项
在试验前要测试参数,在试验后要进行参数测试及观察外观,特别是引线和本体间有否裂缝。

热响应实验报告

热响应实验报告

热响应实验报告热响应实验报告引言热响应实验是一种常见的实验方法,用于研究物体在受热或受冷时的反应。

通过观察物体在温度变化下的行为,我们可以了解热量对物体的影响以及物体的热传导性质。

本报告将介绍一次热响应实验的过程、结果和分析。

实验目的本次实验的目的是研究不同材料在受热和受冷过程中的热响应。

通过测量不同材料的温度变化,我们可以比较它们的热传导性能,并探究不同因素对热响应的影响。

实验装置和材料实验中使用的装置包括一个恒温水槽、热敏电阻温度传感器、数据采集器和计算机。

实验材料包括金属棒、塑料棒和木棒。

实验步骤1. 将恒温水槽加热至设定温度,并保持恒定。

2. 将金属棒、塑料棒和木棒分别放入水槽中,使其与水温达到平衡。

3. 在每个材料上固定一个热敏电阻温度传感器,并连接到数据采集器。

4. 开始记录数据,并观察温度的变化。

5. 等待一段时间,直到温度趋于稳定。

6. 停止记录数据,并保存实验结果。

实验结果通过实验记录的数据,我们可以得到每个材料在受热和受冷过程中的温度变化曲线。

在受热过程中,金属棒的温度上升最快,其次是塑料棒,木棒的温度上升最慢。

在受冷过程中,金属棒的温度下降最快,塑料棒次之,木棒的温度下降最慢。

实验分析根据实验结果,我们可以得出几个结论。

首先,金属具有良好的热传导性能,因此在受热和受冷过程中能够快速传导热量,导致温度变化较大。

其次,塑料的热传导性能较差,热量传导速度较慢,导致温度变化较小。

最后,木材的热传导性能最差,几乎不传导热量,因此温度变化非常缓慢。

这些结果与我们对不同材料的常识相符。

金属具有良好的导热性能,因此常被用于制作散热器等热传导设备。

塑料通常用于制作绝缘材料,其热传导性能较差,能够有效阻止热量的传导。

而木材由于其纤维结构和含水率等因素,导致其热传导性能非常低。

实验意义热响应实验的结果对于工程设计和材料选择具有重要意义。

在设计散热系统时,我们可以根据不同材料的热传导性能来选择合适的材料,以确保散热效果的最大化。

热裂解-气相色谱质谱联用仪 英文

热裂解-气相色谱质谱联用仪 英文

热裂解-气相色谱质谱联用仪英文Pyrolysis-Gas Chromatography-Mass SpectrometryPyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) is a powerful analytical technique that has become increasingly important in various fields of scientific research. This technique combines the principles of pyrolysis, gas chromatography, and mass spectrometry to provide a comprehensive analysis of complex organic materials. The application of Py-GC-MS has revolutionized the way researchers investigate and understand the chemical composition and structure of a wide range of samples, from natural resources to synthetic polymers.Pyrolysis, the first step in this analytical process, is the thermal decomposition of a sample in the absence of oxygen. When a sample is subjected to high t emperatures, typically between 300°C and 1000°C, the chemical bonds within the material break down, resulting in the formation of smaller, volatile molecules. These pyrolysis products are then separated and identified using gas chromatography-mass spectrometry (GC-MS).The gas chromatography component of the Py-GC-MS systemseparates the pyrolysis products based on their boiling points and interactions with the stationary phase within the chromatographic column. As the sample is carried through the column by an inert gas, such as helium or nitrogen, the individual components are separated and eluted at different retention times. This separation allows for the identification and quantification of the individual compounds present in the sample.The mass spectrometry component of the Py-GC-MS system then provides detailed information about the molecular structure and chemical composition of the separated compounds. The ionized pyrolysis products are accelerated through an electric and/or magnetic field, where they are separated based on their mass-to-charge ratio (m/z). The resulting mass spectrum can be used to identify the molecular structure of the compounds, as well as their relative abundance within the sample.The combination of pyrolysis, gas chromatography, and mass spectrometry in the Py-GC-MS technique offers several advantages over traditional analytical methods. Firstly, it allows for the analysis of complex, high-molecular-weight, and thermally labile materials that are difficult to analyze using other techniques. The pyrolysis step breaks down these complex molecules into smaller, more volatile fragments, which can then be effectively separated and identified by the GC-MS system.Moreover, Py-GC-MS provides a comprehensive, detailed, and quantitative analysis of the chemical composition of a sample. The technique can identify and quantify a wide range of organic compounds, including hydrocarbons, oxygenated compounds, nitrogen-containing compounds, and halogenated compounds, among others. This information is crucial for understanding the structure, composition, and potential applications of the analyzed materials.One of the key applications of Py-GC-MS is in the field of polymer and material science. The technique is widely used to characterize the chemical composition and thermal behavior of synthetic and natural polymers, as well as other organic materials such as wood, coal, and fossil fuels. By analyzing the pyrolysis products, researchers can gain valuable insights into the structure, degradation pathways, and potential applications of these materials.Another important application of Py-GC-MS is in the analysis of environmental samples, such as soil, sediment, and air particulates. The technique can be used to identify and quantify a wide range of organic pollutants, including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and pesticides. This information is crucial for understanding the sources, transport, and fate of these contaminants in the environment, and for developingeffective remediation strategies.In the field of forensic science, Py-GC-MS has become an essential tool for the analysis of a wide range of samples, including arson residues, explosives, and illicit drugs. The technique can provide detailed information about the chemical composition and origin of these materials, which is crucial for criminal investigations and evidence-based decision-making.Furthermore, Py-GC-MS has found applications in the analysis of biological samples, such as tissues, cells, and bodily fluids. The technique can be used to identify and quantify a wide range of metabolites, lipids, and other biomolecules, which can provide valuable insights into the physiological and pathological processes occurring in living organisms.Despite its numerous applications and advantages, Py-GC-MS is not without its limitations. The technique requires specialized equipment and expertise, and the interpretation of the resulting data can be complex and time-consuming. Additionally, the pyrolysis step can introduce artifacts or bias in the analysis, and the technique may not be suitable for the analysis of certain types of samples, such as those with very low volatility or thermal stability.To address these limitations, researchers are continuously working toimprove and refine the Py-GC-MS technique. This includes the development of new pyrolysis interfaces, optimization of chromatographic conditions, and the use of advanced data analysis and interpretation tools. As these advancements continue, the application of Py-GC-MS is likely to expand even further, making it an increasingly valuable tool for scientific research and practical applications across a wide range of disciplines.In conclusion, pyrolysis-gas chromatography-mass spectrometry is a powerful analytical technique that has revolutionized the way researchers investigate and understand the chemical composition and structure of complex organic materials. With its ability to provide detailed, quantitative, and comprehensive analysis of a wide range of samples, Py-GC-MS has become an indispensable tool in fields such as polymer and material science, environmental analysis, forensic science, and biomedical research. As the technique continues to evolve and improve, its impact on scientific discovery and practical applications is likely to grow even further in the years to come.。

导热硅脂性能报告

导热硅脂性能报告

导热硅脂性能报告1. 引言导热硅脂是一种具有优良导热性能的材料,广泛应用于电子设备、散热器等领域。

本报告旨在对导热硅脂的性能进行评估和分析,以便更好地了解其在实际应用中的特点和优势。

2. 导热性能测试2.1 实验目的本实验的目的是通过测量导热硅脂的导热系数,了解其导热性能。

2.2 实验步骤1.准备实验所需材料:导热硅脂样品、导热性能测试仪器等。

2.将导热硅脂样品均匀涂覆于导热性能测试仪器所提供的样品台上。

3.将样品台放入测试仪器中,设定合适的温度和时间。

4.等待测试仪器完成测试,记录导热系数的数值。

2.3 实验结果和分析根据实验数据,导热硅脂的导热系数为X W/m·K。

导热系数越大,表示导热性能越好。

因此,可以得出结论:导热硅脂具有良好的导热性能。

3. 物理性质测试3.1 实验目的本实验的目的是通过测试导热硅脂的物理性质,探究其在实际应用中的稳定性和可靠性。

3.2 实验步骤1.准备实验所需材料:导热硅脂样品、实验器具等。

2.测试导热硅脂的质地、颜色、气味等物理性质,并进行记录。

3.对导热硅脂进行热稳定性测试,将样品暴露在高温环境中,观察其是否发生物理变化。

4.对导热硅脂进行耐寒性测试,将样品置于低温环境中,观察其是否变得脆化或失去原有的性能。

3.3 实验结果和分析根据实验观察,导热硅脂的质地柔软、颜色均匀,无明显气味。

在高温环境下,导热硅脂未发生物理变化,仍然保持良好的性能。

在低温环境下,导热硅脂也没有发生脆化或失去性能的情况。

因此,可以得出结论:导热硅脂具有良好的热稳定性和耐寒性。

4. 应用实例4.1 实例介绍以电子设备散热器为例,介绍导热硅脂在实际应用中的效果和优势。

4.2 应用效果和优势导热硅脂可以在电子设备散热器的导热板和散热片之间填充,起到导热和填充不平整表面的作用。

其优势包括:•优异的导热性能:导热硅脂能够迅速传导热量,提高散热器的散热效果。

•稳定的物理性质:导热硅脂在高温和低温环境下均能保持稳定性能,不会因温度变化而导致散热不稳定。

傅里叶红外测试液体步骤

傅里叶红外测试液体步骤

傅里叶红外测试液体步骤
傅里叶红外测试是一种常用的化学分析技术,通过测量样品对红外光的吸收情况,可以得知样品的化学成分和结构信息。

在液体样品的测试中,傅里叶红外测试同样可以发挥重要作用。

下面将介绍液体样品的傅里叶红外测试步骤。

准备样品。

液体样品应尽量避免气泡和杂质的存在,以确保测试结果的准确性。

在选择样品时,应根据需要的测试信息来确定合适的液体样品。

接着,将样品滴在透明的红外吸收盘中。

为了避免污染和交叉感染,最好使用一次性吸收盘,并在每次测试前清洁干净。

确保样品均匀地涂抹在吸收盘表面上,以保证光线的均匀透过。

然后,将吸收盘放入傅里叶红外光谱仪中。

在进行测试之前,需要校准仪器,确保测试结果的准确性。

校准完成后,选择合适的测试条件,如波长范围和分辨率等。

接着,进行样品的傅里叶红外测试。

启动仪器,开始测试样品的吸收光谱。

在测试过程中,可以观察样品对不同波长光线的吸收情况,从而得到样品的红外光谱图。

分析测试结果。

根据样品的红外光谱图,可以判断样品的化学成分和结构信息。

通过比对标准光谱库,还可以进一步确认样品的身份
和性质。

总的来说,傅里叶红外测试液体样品是一种快速、准确的化学分析方法。

通过遵循上述步骤,可以有效地进行液体样品的傅里叶红外测试,为化学分析和研究工作提供有力支持。

希望以上内容能对您有所帮助,谢谢阅读。

反应量热仪指标

反应量热仪指标

反应量热仪指标
反应量热仪是一种用于测量化学反应过程中热量变化的仪器,具有较高的精度和可靠性。

以下是反应量热仪的主要技术指标:
1.温度范围:反应量热仪能够测量的温度范围是其重要的技术指标之一。

不同型号的反应量热仪具有不同的温度范围,能够满足不同的实验需求。

2.温度分辨率:反应量热仪能够测量的温度变化范围,其分辨率越高,测量结果越精确。

3.热功率范围:反应量热仪能够测量的热功率范围也是其重要的技术指标之一。

不同型号的反应量热仪具有不同的热功率范围,能够满足不同的实验需求。

4.热响应时间:反应量热仪对温度变化的响应速度越快,其热响应时间越短。

快速的响应速度可以提高实验效率和准确性。

5.测量精度:反应量热仪的测量精度是衡量其性能的重要指标之一。

精度越高,测量结果越可靠。

6.操作简便性:反应量热仪的操作简便性也是其重要的技术指标之一。

易于操作和使用的反应量热仪可以提高实验效率和实验安全性。

总之,选择适合实验需求的反应量热仪需要考虑多个技术指标,包括温度范围、温度分辨率、热功率范围、热响应时间、测量精度和操作简便性等。

雷德纳尔漏检测正常温度测试产品说明书

雷德纳尔漏检测正常温度测试产品说明书

S afety D ata S heetSection 1: Product and Company IdentificationProduct Name: Leak Test Regular Temperature Product Identifier: Leak Detection Compound Product Use: Leak Detection Compound Item Code(s): 64000136, 64000137, 64000138, 64000139SDS Code: 044R Supplier: Radnor Physical Address: 259 North Radnor - Chester Road - Suite 100 Radnor, PA, 19087-5283Emergency Phone: 866-734-3438Date of Preparation: March 24, 2019OSHA Regulatory Status: Non-Regulated WHMIS Classification: Not a Controlled ProductSection 2: Hazard IdentificationCLASSIFICATION OF THE SUBSTANCE OR MIXTURE :This product is not classified as hazardous according to the Globally Harmonized System (GHS).LABEL ELEMENTS :GHS LABEL ELEMENTS: Not Available SIGNAL WORD: Not Available HAZARD STATEMENTS: Not Available NFPA RATINGS (SCALE 0 - 4):Health = 0Fire = 0Reactivity = 0Section 3: Composition and Information on IngredientsCHEMICAL CHARACTERIZATION : Mixtures DESCRIPTION: Mixture of the substances listed below with nonhazardous additions.DANGEROUS COMPONENTS: Not Available ADDITIONAL INFORMATION: Exact concentrations and/or compositions are being withheld as trade secrets.Section 4: First Aid MeasuresGENERAL INFORMATION: No special measures required.AFTER INHALATION: Supply fresh air; consult doctor in case of complaints.AFTER SKIN CONTACT: Immediately rinse with water.AFTER EYE CONTACT: Rinse opened eye for several minutes under running water.AFTER SWALLOWING: If symptoms persist consult doctor.MOST IMPORTANT SYMPTOMS AND EFFECTS, BOTH ACUTE AND DELAYED :No further relevant information available.INDICATION OF ANY IMMEDIATE MEDICAL ATTENTION AND SPECIAL TREATMENT NEEDED :No further relevant information available.May be used to comply with OSHA’s Hazard Communication Standard, 29 CFR 1910.1200. U.S. Department of LaborOccupational Safety and Health Administration (Non-Mandatory Form). Format meets ANSI Z400.1-1998, OSHA 1910.1200 and WHMIS requirements.Section 5: Fire Fighting MeasuresSUITABLE EXTINGUISHING AGENTS:CO2, extinguishing powder or water spray. Fight larger fires with water spray or alcohol resistant foam.SPECIAL HAZARDS ARISING FROM THE SUBSTANCE OR MIXTURE: No further relevant information available. PROTECTIVE EQUIPMENT: No special measures required.Section 6: Accidental Release MeasuresPERSONAL PRECAUTIONS, PROTECTIVE EQUIPMENT AND EMERGENCY PROCEDURES: Not required. ENVIRONMENTAL PRECAUTIONS: Do not allow to enter sewers/ surface or ground water.METHODS AND MATERIAL FOR CONTAINMENT AND CLEANING UP:Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).REFERENCE TO OTHER SECTIONS:No dangerous substances are released.See Section 7 for information on safe handling.See Section 8 for information on personal protection equipment.See Section 13 for disposal information.Section 7: Handling and StorageHandlingPRECAUTIONS FOR SAFE HANDLING: No special measures required.INFORMATION ABOUT PROTECTION AGAINST EXPLOSIONS AND FIRES: No special measures required. StorageREQUIREMENTS TO BE MET BY STOREROOMS AND RECEPTACLES: No special requirements. INFORMATION ABOUT STORAGE IN ONE COMMON STORAGE FACILITY: Not required.FURTHER INFORMATION ABOUT STORAGE CONDITIONS: None.SPECIFIC END USE(S): Leak Detection CompoundSection 8: Exposure Controls / Personal ProtectionADDITIONAL INFORMATION ABOUT DESIGN OF TECHNICAL SYSTEMS: No further data; see item 7. COMPONENTS WITH LIMIT VALUES THAT REQUIRE MONITORING AT THE WORKPLACE:The product does not contain any relevant quantities of materials with critical values that have to be monitored at the workplace.ADDITIONAL INFORMATION: The lists that were valid during the creation were used as basis.Personal protective equipmentGENERAL PROTECTIVE AND HYGIENIC MEASURES: The usual precautionary measures for handling chemicals should be followed.BREATHING EQUIPMENT: Not required.PROTECTION OF HANDS: The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.MATERIAL OF GLOVES: Protective gloves not normally required. People with sensitive skin may prefer to wear water-proof gloves, such as rubber or neoprene, to avoid skin contact.EYE PROTECTION: Goggles recommended during refilling.Section 9: Physical and Chemical PropertiesFORM: LiquidCOLOR: ColorlessODOR: OdorlessODOR THRESHOLD: Not determined.PH-VALUE AT 20 °C: 7CHANGE IN CONDITION:MELTING POINT/MELTING RANGE: -3 °CBOILING POINT/BOILING RANGE: 100 °CFLASH POINT: Not applicable.FLAMMABILITY (SOLID, GASEOUS): Not applicable.IGNITION TEMPERATURE:DECOMPOSITION TEMPERATURE: Not determined.AUTO IGNITING: Product is not selfigniting.DANGER OF EXPLOSION: Product does not present an explosion hazard. EXPLOSION LIMITS:LOWER: Not determined.UPPER: Not determined.VAPOR PRESSURE AT 20 °C: 23 hPaDENSITY AT 20 °C: 0.998 g/cm³RELATIVE DENSITY: Not determined.VAPOR DENSITY AT 20 °C: .610 (AIR=1)EVAPORATION RATE AT 20 °C: 1.0 (BA=1)SOLUBILITY IN / MISCIBILITY WITH WATER: Fully miscible.PARTITION COEFFICIENT (N-OCTANOL/WATER): Not determined.VISCOSITY:DYNAMIC: Not determined.KINEMATIC: Not determined.SOLVENT CONTENT:ORGANIC SOLVENTS: 0.0 %VOC CONTENT: 0.0 g/l / 0.00 lb/glOTHER INFORMATION: No further relevant information available.Section 10: Stability and ReactivityTHERMAL DECOMPOSITION / CONDITIONS TO BE AVOIDED:No decomposition if used according to specifications.POSSIBILITY OF HAZARDOUS REACTIONS: No dangerous reactions known.CONDITIONS TO AVOID: No further relevant information available.INCOMPATIBLE MATERIALS: No further relevant information available.HAZARDOUS DECOMPOSITION PRODUCTS: No dangerous decomposition products known.Section 11: Toxicological InformationINFORMATION ON TOXICOLOGICAL EFFECTS: No further relevant information available.Acute toxicitySPECIFIC SYMPTOMS IN BIOLOGICAL ASSAY: No further relevant information available.PRIMARY IRRITANT EFFECT ON THE SKIN: No irritant effect.PRIMARY IRRITANT EFFECT ON THE EYE: No irritating effect.SENSITIZATION: No sensitizing effects known.ADDITIONAL TOXICOLOGICAL INFORMATION:THE PRODUCT IS NOT SUBJECT TO CLASSIFICATION ACCORDING TO INTERNALLY APPROVED CALCULATION METHODS FOR PREPARATIONS: When used and handled according to specifications, the product does not have any harmful effects according to our experience and the information provided to us.Carcinogenic categoriesIARC (International Agency for Research on Cancer)None of the ingredients is listed.NTP (National Toxicology Program)None of the ingredients is listed.Section 12: Ecological InformationAQUATIC TOXICITY: No further relevant information available.PERSISTENCE AND DEGRADABILITY: No further relevant information available.Behavior in environmental systemsBIOACCUMULATIVE POTENTIAL: No further relevant information available.MOBILITY IN SOIL: No further relevant information available.Additional ecological informationGENERAL NOTES: Water hazard class 1 (Self-assessment): slightly hazardous for water. Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.OTHER ADVERSE EFFECTS: No further relevant information available.Section 13: Disposal ConsiderationsWaste treatment methodsRECOMMENDATION: Smaller quantities can be disposed of with household waste.Uncleaned packagingsRECOMMENDATION: Place in a sealed container and label as waste. Place in a safe area, and comply with all federal, state, provincial and local regulations for disposal.Section 14: Transportation InformationUN-NumberDOT, TDG, ADN, IMDG, IATA Not regulatedUN proper shipping nameDOT, TDG, ADN, IMDG, IATA Not regulatedTransport hazard class(es)DOT, TDG, ADN, IMDG, IATAClass Not regulatedPacking groupDOT, TDG, IMDG, IATA Not regulatedEnvironmental hazards:Marine pollutant: NoSpecial precautions for user: Not applicable.Transport in bulk according to Annex II ofMARPOL73/78 and the IBC Code:Not applicable.UN “Model Regulation”:Not regulatedSection 15: Regulatory InformationSafety, health and environmental regulations/legislation specific for the substance or mixtureSaraSECTION 355 (EXTREMELY HAZARDOUS SUBSTANCES):None of the ingredients is listed.SECTION 313 (SPECIFIC TOXIC CHEMICAL LISTINGS):3251-23-8 copper dinitrateTSCA (TOXIC SUBSTANCES CONTROL ACT):All ingredients are listed or exemptedProposition 65CHEMICALS KNOWN TO CAUSE CANCER:None of the ingredients is listed.CHEMICALS KNOWN TO CAUSE REPRODUCTIVE TOXICITY FOR FEMALES:None of the ingredients is listed.CHEMICALS KNOWN TO CAUSE REPRODUCTIVE TOXICITY FOR MALES:None of the ingredients is listed.CHEMICALS KNOWN TO CAUSE DEVELOPMENTAL TOXICITY:None of the ingredients is listed.Canadian substance listingsCANADIAN DOMESTIC SUBSTANCES LIST (DSL/NDSL):All ingredients are listed.CANADIAN INGREDIENT DISCLOSURE LIST (LIMIT 0.1%):None of the ingredients is listed.CANADIAN INGREDIENT DISCLOSURE LIST (LIMIT 1%):None of the ingredients is listed.GHS LABEL ELEMENTS: Not AvailableHAZARD PICTOGRAMS: Not AvailableSIGNAL WORD: Not AvailableHAZARD STATEMENTS: Not AvailableSection 16: Other InformationThe information contained herein is provided in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Product use and conditions of use are beyond our control. Warranty of materials is limited to test results of product performance as detailed in certificates of compliance. Interpretation of test results is the responsibility of end-user. No other warranties, expressed or implied, are made.N/E Not EstablishedN/Av Not AvailableN/Ap Not ApplicableIARC International Agency for Research on CancerACGIH American Conference of Governmental Industrial HygienistsNIOSH National Institute for Occupational Health and SafetyTLV-TWA Threshold Limit, Time Weighted AverageNAERG North American Emergency Response GuidebookWHMIS Workplace Hazardous Materials Information SystemThis SDS format meets ANSI Z400.1-1998, OSHA 1910.1200 and WHMIS requirements. Radnor provides the information contained herein in good faith but makes no representation as to its comprehensiveness or accuracy. This document is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Product use and conditions of use are beyond the control of Radnor. Warranty of materials is limited to test results of product performance as detailed in certificates of compliance. Interpretation of test results is the responsibility of end-user. No other warranties, expressed or implied, are made.。

开尔文测试法

开尔文测试法

开尔文四线检测Kelvin Four-terminal sensing开尔文四线检测(Kelvin Four-terminal sensing)也被称之为四端子检测(4T检测,4T sensing)、四线检测或4点探针法,它是一种电阻抗测量技术,使用单独的对载电流和电压检测电极,相比传统的两个终端(2T)传感能够进行更精确的测量。

开尔文四线检测被用于一些欧姆表和阻抗分析仪,并在精密应变计和电阻温度计的接线配置。

也可用于测量薄膜的薄层电阻。

四线检测的关键优点是分离的电流和电压的电极,消除了布线和接触电阻的阻抗。

四线检测感应也被称为开尔文(Kelvin)检测,威廉·汤姆森·开尔文勋爵(William Thomson, Lord Kelvin)在1861年发明的开尔文电桥测量低电阻。

每两线连接,可以称得上是Kelvin连接。

原理假设我们希望一些组件位于一个显着的距离从我们的欧姆表测量电阻。

这种情况下会产生问题,因为欧姆表测量所有的电路回路中的电阻,它包括导线的电阻(R wire)连接的欧姆表被测量组件(R subject):通常情况下,导线的电阻是非常小的(仅几欧姆的导线上的压力表(大小),主要取决于每数百英尺),但如果连接线很长,和/或待测组分有一个非常反正低电阻,引入线电阻测量误差将是巨大的。

在这样的情况下的电阻测量主体的一个巧妙的方法,涉及的电流表和电压表的使用。

我们知道,从欧姆定律,电阻等于电压除以电流(R = E / I)。

因此,我们应该能够确定电阻的主体成分,如果我们测量的电流通过,并且两端的电压下降电流在电路中的所有点相同,因为它是一个串联回路。

因为我们只测量电压下降的整个主体电阻(而不是导线的电阻)。

不过,我们的目标,是从远处来衡量这个主题性,所以我们必须位于电压某处附近电流表,由另一对含有电阻的导线跨接受阻力:起初,我们似乎已经失去了任何电阻测量这种方式的优点,因为现在电压表测量电压通过长着一双引入杂散电阻(电阻)线,再次进入测量电路。

热响应实验报告

热响应实验报告

热响应实验报告1. 引言热响应实验是一种常见的实验方法,用于研究物体对热能的响应及其传导性质。

通过对物体加热或者冷却,观察其响应的变化,可以分析物体的热传导性能、热容量等热学特性。

本文将描述一个关于热响应实验的详细实验过程和结果分析。

2. 实验目的本实验的目的是通过对不同材料的加热和冷却实验,探究不同材料的热响应特性,了解热传导性能与材料属性的关系。

3. 实验步骤本实验使用了以下材料和仪器设备: - 不同材料的试样(如铜、铁、铝等) -温度计 - 温控仪 - 实验框架实验步骤如下: 1. 准备不同材料的试样,并记录试样的信息,如材料类型、尺寸等。

2. 将试样置于实验框架中,保持固定。

3. 将温度计置于试样附近,并连接至温控仪。

4. 通过温控仪控制试样的温度,设定初始温度。

5. 启动温控仪,开始记录实验数据。

6. 记录试样温度随时间变化的数据,直至试样温度回到初始温度。

7. 重复以上步骤,使用不同的材料进行实验。

8. 根据实验数据,进行数据分析和结果总结。

4. 数据收集和分析在实验过程中,我们记录下了试样温度随时间变化的数据,并对实验数据进行了整理和分析。

下面是我们得到的一个样例结果表格:时间(秒)铜试样温度(摄氏度)铁试样温度(摄氏度)铝试样温度(摄氏度)0 25 25 25 10 32 26 28 20 38 27 30 30 42 28 32 40 46 29 33 50 49 30 34通过对实验数据的分析,我们可以得出以下结论: - 铜试样的温度增长速度最快,热传导性能较好。

- 铁试样的温度增长速度次之,热传导性能较铜试样差一些。

- 铝试样的温度增长速度最慢,热传导性能最差。

5. 结论和讨论通过本次实验,我们可以得出不同材料的热响应特性是不同的。

铜具有较好的热导率,所以在加热过程中温度增长最快;铁的热导率次之;而铝的热导率最差,因此温度增长最慢。

这与我们对材料的常规认识是一致的。

热常数分析仪技术参数.doc

热常数分析仪技术参数.doc

热常数分析仪技术参数1 用途主要用于固体、粉末、高聚物、液体、复合材料、纤维材料等各种材料的导热系数、热扩散率和比热的测试。

要求仪器测量范围广,精确度高,无须破坏样品,一次测试可同时得到被测样品的热常数,包括导热系数、热扩散系数和热容,可进行实时监控,测量数据可存储、处理。

2 工作条件2.1 电压:220V/50HZ;3 技术参数*3.1导热系数测定范围:0.01 W/(m٠K)~ 1000 W/(m٠K);3.2热扩散率:0.01 mm2/S ~ 1200mm2/S;3.3比热测量范围:0.01-5 MJ/(m3K);3.4导热系数测量精度:± 3 %;3.5热扩散率测量精度:± 5 %;3.6比热测量精度:± 7 %;3.7导热系数测量重复性优于1%;*3.8能够给出沿块体材料厚度方向的导热系数变化曲线;3.9测试时间:1 1200 s;*3.10最小样品尺寸:块状试样:厚度 2 mm, 直径 10 mm;薄膜材料:厚度:10um;*3.11样品类型:块状、粉末、液体、薄膜、各向异性材料等;3.12专业分析软件包:(中文)-包含数据实时采集与记录软件、数据处理与相关参数在测试过程变化曲线绘制,导热系数、热扩散系数和比热直接显示等各项功能。

4 主要组成部分4.1 主机一套;4.2 标准测试模块一套;4.3 薄膜测试模块一套,可测量厚度10um至500um低导薄膜材料的热常数;4.4 薄板测试模块一套,可测量厚度0.2mm至8mm高导材料的热常数;4.5 各向异性测试模块一套,可测量各向异性材料两个主方向的热常数;4.6 单面测试模块一套,可对导热系数0.3W/mK以上的块体样品进行原位测试,不需制样;4.7 热容测试模块一套,可精确测定材料的热容;4.8 测量探头5支,满足不同样品导热系数测量要求;4.9 温度探头1支,用于测试环境温度;4.10 烘箱1套,温控范围:RT~300 C,内部容积不小于30L;4.11 室温样品架一组(含液体支架)4.12 电脑:21寸液晶显示器,I3配置处理器,内存4G,硬盘500G。

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