Centroc1000 插芯同心度测试仪说明说

Norland Centroc1000Operating ManualVer 1.61Ferrule Eccentricity Measurement Ferrule Concentricity Measurement Ferrule Cylindricity Measurement Point to Point MeasurementInsertion Loss CalculationVisual ExaminationNorland Products Incorporated Phone: 609-395-1966Fax: 609-395-90062540 Route 130 Building 100, Cranbury NJUSA -08512INDEXSection No. Section Name Page1. Introduction 32. General description 33. Equipment Setup 44. Software Setup 55. Centroc1000 Main Screen136. Centroc Menus146.1 File Menu146.2 Tools Menu:146.3 Display Menu:156.4 Options Menu:196.5 About Menu:237. Changing Mount Fixtures238. Measuring Eccentricity259. Visual Examination 2610. Service Information2611. Specifications2712. Appendix A – Theory2812.1 Insertion Loss Estimation2912.2 Criteria for reference connectors291. IntroductionThe Centroc1000 unit, for noncontact measuring of ferrule endface geometry, is part of Norland Product’s range of measuring equipment for Optical Cable Assembly shops.The unit complies with:IEC 61300-2-41ISO 2538IEC 61300-3-18 IEC 61300-3-24 IEC 61300-3-262. General descriptionThe Centroc1000 is a special designed auto-focusing microscope with a precision chuck for ∅ 2.500 mm or for ∅ 1.250-mm fiber optic ferrules.In Order to achieve maximum accuracy the magnification in model 1000 is 900 X on a 17’’ monitor.3. Equipment Setup• Connect the "Centroc1000" and the PC using the cable supplied (9-pin female to Centroc1000 and 9-pin male to the frame grabber card interface at the PC).• The Centroc1000 uses the USB interface for motor and lighting control. Connect the USB cable to Centroc1000 and insert the other end into one of the USB ports. Ifplugging into that port for the first time, the following setup procedure may be required. • Connect monitor, mouse, printer and keyboard to the PC.• Connect the Printer and the Personal Computer to AC- power mains.• Verify the computer monitor Screen Area is set to “1024x768” with Colors set to “True Color (24 bit)”4. Software SetupThe Centroc1000 system comes with any required software already installed onto its associated computer. The Centroc1000 application is designed to operate underWindows 2000 Pro or Windows XP Pro. The minimum requirement for PC: Intel P III 800 MHz.In the event the Centroc1000 software needs to be reinstalled, it must be installed in the following order:4.1 Euresys drivers for the Picolo frame-grabber.4.2 Centroc1000 measurement application.If updating just the Centroc1000 application, only step 2 need be performed.Check for any new versions on the Norland Products web-site4.1 Euresys drivers for Picolo frame-grabber:Installation from the Euresys CD:a. Place the CD, and select INSTALL to install the softwareb. Select Run-time and select evision and Multicam for Picolo and Click Nextc. Click NEXT on the following screend. Select Easy Grab, Drivers, ActiveX and Click NEXT on the following screen.e. Leave the default and click NEXT on the following screenf. After successful installation the click ok on the following message andclick Quit from the initial installation screen to close the screen.4.2 Centroc1000 Software Installation:Installation from the Centroc1000 CD:a. Insert the CD to install the software. Click Next to the following displayb. Choose “I accept” and click Nextc. Enter the customer Information (or accept the default) and click Next.d. Click Next to start the installatione. Click Finish to end the installation.Configuring the Centroc1000 USB Interface:a. Plug in the USB cable:Plug in one end of the USB cable to the Centroc1000 instrument and its other end into one of the computer’s USB ports. Once the cable is plugged in, thefollowing message will be shown at the bottom of the screen.b. Install the new USB driver ELEKTOR:The following screen prompts the user to install the new drivers. Choose “Install the software automatically” and click next.Searching for the necessary filesClick Next after it found the filesClick “Continue Anyway”Click Finish to complete. Appearance of the following message will indicate that the installation has been successful:5. Centroc1000 Main ScreenRun the application, the following main screen appears.MenubarImage: Live image from the camera.Menu bar: Collection of pull-down menus of various program functionsand options.Align Ferrule: After inserting a ferrule, click this button to bring its end facefully into the fixture before starting a measurement.Run Test: Click this button to calculate the eccentricity or concentricityfor the ferrule. Ferrule rotates automatically. While rotating,several measurements are taken at each rotation point. Thepoints along with eccentricity values are displayed on aseparate “Results” window. Before clicking “Run test” makesure to click the Focus and Align Ferrule buttons.Eject: Use this option to remove the ferrule from the mount.Focus: Click to activate focusing.Tuning On/Off: Status of Tuning the ferrule for marking is displayed. “TuningOn” for a measurement means rotate the ferrule, so the endferrule eccentricity or concentricity is aligned at 12 o’clockposition at the end of the measurement. “Tuning On” isrequired for the ferrules, which need marking. “Tuning Off”for normal measurement. To select Tuning On or Off, use the“Perform tuning at the end of measurement” option fromOptions/Menu from tool bar.Back light: Click ‘+’ or ‘-‘ buttons to adjust the level of illumination. 6. Centroc Menus6.1. File Menu :Exit:To close the application.6.2. Tools Menu:Change Mount On/Off:This option, when selected, will activate an Image circle template and on-screen instructions that assist the user in changing the mounting fixture. (SeeSection 7.Changing Mount Fixtures)Inspection Mode On/Off:Choose this option to increase illumination on the connector endface. Whenselected, use additional set of buttons (“+/-“) to make smaller increases ordecreases to the illumination level as needed.6.3 Display Menu:6.3.1 Statistics:When selected, a separate form with statistical report of the results history is displayed (see figure below).At top left in the above figure, a table lists the results from all storedmeasurements. Statistical displays from a subset of those measurements are at top center as well as the two bottom displays. The amount ofmeasurements used in the statistical displays can be selected by the operator (by entering how many of the last measurements into the top center box).From the graph at top right, an estimation of a particular ferrule’s worst-case insertion loss can be made using the its eccentricity result. See the Theory Section in Appendix A for more information.a. File Menu:File menu from the Statistics display contains Data, Print, & Exitchoices.i. Data:On choosing data the following options are showed• Clear List: To clear results from the form.• Restore Last list: To restore last cleared results.ii.Print:On choosing Print the following options are shown to the user • Print Form : Print the current form.• 2. Print all records: Print all the stored results fromthe database.iii. Print (sort) : This will show Data Record Selectionform to print only data from a particular date range orwith a particular Product ID.Print: After choosing the dates or Product IDclick print to print the data.Exit: Click to exit from this form.6.3.2 Last Results:This display shows a graphical representation of the eccentricity or concentricity measurements as well as the following measured or calculated quantities from the most recent scan.Note: For the first 5 items either Eccentricity or Concentricity values will be shown depending on the Measurement Type (as chosen in Options/Menu before measurement).a. Eccentricity /Start: The first measured eccentricity value.b. Eccentricity /End: The last measured eccentricity value.c. Eccentricity /Fitted: The mean Eccentricity value for the ferrulearrived at by means of a least-squares circle fit to all the eccentricityvalues.d. Maximum Eccentricity: Max eccentricity value measured.e. Minimum Eccentricity: Min eccentricity value measured.f. Ferrule Cylindricity: Cylindricity of the ferrule. A measure of theferrule’s deviation from a perfect cylindrical shape.g. Cavity Diameter: Fiber hole diameter for the ferrule measured.h. Calculated Insertion Loss: Theoretical Insertion loss based on fittedEccentricity.i. Ferrule Type: Type of the ferrule from the Options/ Menuj. End Angle: Angle at the last measured point- red circle.Note: When Tuning is on, the End Angle is the angle at 12 o’ clockposition which is 0 degrees.k. Product ID: ID entered before the measurementl. Operator: Operator entered in the Options/Menum. Centroc 1000 model sn: Serial number of the Centroc1000 modelPress [Print] to print the current screen.Press [Next] to return to the start screen to measure the next product.Press [Stats] to see statistical presentation of results.Press [Excel Viewer] to view the saved scan results in Microsoft Excel. The text file viewed can be selected or changed in theOptions/Menu under “Save Results to” section.Excel Viewing the Text File:6.4 Options Menu:Adjust the different parameters as required per connector specification and as desired by the operator.Explanation of the Options Menu fields:SerialNumber Picolo: Picolo frame grabber serial number from the Board. SerialNumber Centroc: Centroc1000 serial numberCalibration Factor: The magnification calibration factor entered at the factory forthe unit. It should match the value marked on its rear panel. Ifthere is any question about the correctness of this value orneed to recalibrate, contact Norland Products TechnicalSupport for assistance.Ferrule Type: Choose the appropriate selection for the sample being tested.Pass /Fail Criteria: Enter desired Min and Max limits for the average Eccentricity(“Ecc/Fitted”) or Concentricity depending on Measurement Type choice. At measurement completion the result will be compared against these limits and displayed on Red (Fail) or Green(Pass) background.Perform Tuning at the end of measurement: Select this option to rotate the ferrule at the end of the measurement, so the ferrule end Eccentricity or Concentricity is aligned at 12 o’clock position. The status of Tuning is displayed on the main screen below the live image.Measurement Type: Depending on the measurement type chosen the scan results will be displayed on Results screen and Statistics screen as shown below.For Eccentricity:For Concentricity:Show Maximum/Minimum: Maximum and Minimum Eccentricity values will only be shown on the Results screen if this option is checked.Product ID: Information for Product IDa. Prompt For Input Select this option if it is desired to be prompted for aProduct ID before each new measurement. At the time of measurement, thefollowing prompt will be presented. After entering an ID (or accepting thevalue already there), click OK to continue with the measurement or Cancel to exit from the measurement.b. Auto Increment: Check this option if the ID to be incremented for nextmeasurement.Save Results To: Choose/enter the ASCII text filename and location where measurement data will be stored. This file can be later imported into other programs like “Microsoft Excel” for additional processing and can be viewed through Results screen.Operator: Select this option if it is desired to include an Operator name among the displayed and stored results of a measurement.Explanation of the Options Menu buttons:Defaults: Load the factory defined defaults.Note: Different defaults will be loaded depending on choice for FerruleType.Cancel: Close the form without saving any changes.Apply: Save any changes and close the form.Note: It is possible to select and then save (using this Apply button) two completely different configurations of options; one for the SM and another for MM ferrule type choices. Then it is easy to switch from one configuration to the other simply by changing Ferrule Type selection.6.5 About Menu:Click Help/About to show the software product information.7. Changing Mount FixturesThis procedure should be followed when the mounting fixture needs to be changedto a type for different diameter ferrule, for example from 1.25 to 2.50 mm diameter.• Remove front main-panel.• Remove holding-down spring from driving-lever assembly.• Remove driving belt from driving-lever with tweezers and place it on a clean piece of paper. (NOTE: Avoid touching the belt by hand at all times!)• Press “Align Ferrule” button to rotate motor shaft, until the setscrew on rightmost pulley is visible.• Using M1 Hex Key, loosen setscrew of pulley on motor shaft by ½ turn counter clockwise.• Using both hands, pull driving-lever assembly towards operator, and allow pulley on motor shaft to gently slide out along motor shaft.• Using M3 Hex Key, replace v-groove mount by new mount.• Hold driving-lever assembly with both hands. Gently slide its rightmost pulley back onto the motor shaft until assembly stops at front surface of brass disk on v-groovemount.• Using M1 Hex Key, tighten setscrew of pulley on motor shaft.• Replace driving belt to driving lever with tweezers. (No hand touch on belt is allowed.)• Replace holding-down spring on driving-lever assembly.• Insert a testing ferrule of appropriate size into v-groove mount.• If needed, perform manual focusing of ferrule image by turning front-bottom knob. • If needed, perform manual centering of ferrule image by turning micrometers at both sides behind v-groove mount.• Replace front main-panel and press Close to resume measurements.Mounting heads and Driving Belts8.Measuring Eccentricity• Go to the measurement screen (as pictured above). If the current display is the Statistics screen, click EXIT. If, instead, it is the Results screen, click NEXT. • Set the required options in Options screen.• Open the mounting fixture by lifting the lever to the left of the fixture.• Place the ferrule into the fixture V-groove, let the lever down to hold the ferrule in place.• Click Align Ferrule before measuring• Click Run Test. The ferrule will rotate automatically. While rotating, several measurements are taken at each rotation point. The points along with eccentricity values are displayed on a separate “Results” window. See Last Results insection 6.39. Visual ExaminationExample of SM image on a Centroc1000Length measurementPlanar dimensions on the ferrule such as ferrule diameter, adhesive ring thickness,and scratch width can be checked using the live Image and a mouse. By clicking the left mouse button at two points on the Image, the distance between those two points can be measured.Additional ToolsA variety of additional tools can be found by clicking the right mouse button whilethe cursor is on the live Image. Features such as zooming, panning, and Imagecopying can be selected and used as part of the visual examination process.10. Service InformationItem DescriptionAccessories Std Fixture for 1.25mm ferrules (LC and MU connectors)Std Fixture for 1.60mm ferrules (supports M29504/4 and M29504/5 connectors)Std Fixture for 2.00mm ferrules (supports M29504/14 and M29504/15 connectors)Std Fixture for 2.50mm ferrules (supports SC and FC connectors) 20060110 20060111 20060112 2006011311. SpecificationsPower Requirements +12 V DC (supplied by the PC via the Frame Grabber connector) Supported Fiber types Suitable for most SM and MM fiber connector ferrules(Supports Maximum fiber diameter up to 140 (µm)) Temperature 10°-40° C Operating5°-55° C StorageHumidity RH Maximum 90% no condensationWavelength (LED) λ 475 nmMeasurement uncertainty 0.1 µm (Eccentricity), 0.2 µm (Concentricity)Minimum PC requirement Operating system Intel P4 or AMD Athlon Preferably +2 GHz .1 free PCI slot for Picolo frame-grabber. Windows 2000 or XP ProStandards reference IEC 61300-2-41IEC 61300-3-18IEC 61300-3-24IEC 61300-3-26ISO 2538We continuously upgrade software and documentation.Check on for the latest versions.12. A ppendix A – Theory12.1 Insertion Loss EstimationThe amount of insertion loss contributed by the ferrule component of a connector can be estimated by noting the difference between that ferrule’s center and its fiber-hole center. This difference is supplied by the Centroc1000 as the Eccentricity measurement. Assuming all else is ideal once a connector is assembled using this ferrule, the estimated insertion loss (measured against a concentric reference connector) can be read from the following figure using that Eccentricity result.Loss (dB)Ecc. (µm)0.00 0.000.10 0.000.20 0.010.30 0.020.40 0.030.50 0.050.60 0.080.70 0.110.80 0.140.90 0.171.00 0.211.10 0.261.20 0.311.30 0.361.40 0.421.50 0.481.60 0.551.70 0.621.80 0.691.90 0.772.00 0.86For not-tuned connectors (with angle of eccentricity anywhere within 180°of its key), the worst case random loss for a population of product can be estimated by adding the two highest eccentricities in a population.For example:Eccentricities: Connector_x = 0.8 µm, Connector_y = 0.9 µm.(ecc-x + ecc-y) = ecc-tot or (0.8 +0.9) = 1.7 µmFrom the graph: 1.7 µm eccentricity results in 0.62 dB worst case loss.For tuned connectors (which, through tuning, will have an angle of eccentricity within 45°of its key).The worst case random loss for a population of tuned product can be estimated by adding the two highest eccentricities in a population and dividing that sum by 1.414. For example:(ecc-x + ecc-y) /1.4 = ecc-tot or (0.8 +0.9)/1.414 = 1.2 µmFrom the graph: 1.2 µm eccentricity results in 0.31 dB worst case loss.12.2 Criteria for reference connectorsA connector is suitable for reference purposes if the requirements for reference products as presented in the relevant specification or related IEC documents are met.For the case of a user having their own purchasing specification, use the criteria for reference components from this document. If no specification for reference is given, a reference can be selected from the table below.The maximum allowable eccentricity for a batch of connectors is dependent not only on the connector under test, but also on the reference connector used….Example:If the Loss Specification is 0.20 dB according to IEC method 7 (first column intable), then the maximum allowed (total) eccentricity as 0.95 µm. This is the sum of the maximum eccentricity of the connector under test and the maximum eccentricity of the reference connector (from the table).This example shows that a reference connector should be selected with an eccentricity value as low as possible. Careful selection of a reference connector with the lowest possible value for eccentricity results in best yield (more connectors that will be considered to have acceptable eccentricity) in the final loss measurement.Single Mode connectors.Loss against concentric reference connector.(IEC method 7) Maximum lossin the field2%Maximum EccentricityReference connectorMaximum eccentricityof connector under test0.10 dB 0.40 dB 0.10 µm 0.58µm0.20 dB 0.77 dB 0.20 µm 0.75µm0.30 dB 1.16 dB 0.20 µm 0.98µm0.40 dB 1.75 dB 0.25 µm 1.11µm0.50 dB 2.10 dB 0.30 µm 1.24µm。