如果需要对测试仪进行自检,需将测试短路头连接到测试仪的X38接口上。自检时采用短路接插件的方法,电位计测试仪自动测量各通道的连线、继电器开关和电路的电阻值,并将这一数据记忆和保存,在测试仪进行舵电位计测量时自动减去,确保测量电阻准确性。
当控制电路将左、右舵电位器的3和16脚连接在一起,并自动在两个滑动触点5和18脚上加载DC 5V电压时,测量电路以1K采样频率读取测试过程数据,也可以外接示波器观察波形,完成电位计接触可靠性检测。
控制电路自动将电流源分别与电位计的3和7脚连接,COM端与1脚连接,测量电路COM端与1脚连接,自动读取3和1脚(或7和1脚)的电压数据,测量数据输入计算机,计算得到电位计的全电阻和半电阻值。同样方法可以完成另一个电位计的全电阻和半电阻值的检测。
控制电路自动将电压源(DC 15)与电位计的1连接,电压源(DC-15)与电位计的3连接,COM端与7脚连接,测量电路COM端与7脚连接;人工输入测量角度范围,测试仪自动读取5脚的电压数据,数据输入到计算机,计算得到电位计的零点重合性及不灵敏区。同样方法可以完成另一个电位计的检测。
电位计测试过程受控PC104嵌人式工业计算机,人工设置好所有需要测试项目,测试仪根据顺序自动检测完成,当需要人工输入参数或数据,测试仪会显示提示,指导使用者工作。
4. 测试仪软件设计
舵电位计测试仪测试软件操作界面面如图3所示。点击“测试仪自检”,程序进入舵电位计自检测试子程序,进入自检界面,如图4所示,点击“开始自检”,设备即开始自检,检查的项目如图4所示,结果会在图4对应的栏目中显示出来,设备自检完后,去掉短路连接头,将舵电电位计连接上测试仪,准备进入舵电位计测试。
MKS Instruments LPV1-50-AK-CNVS Vacuum Valve
Tyan S2881 Thunder K8SR Motherboard w/Dual AMD CPU & CO
Applied Materials/AMAT 0020-22844 Pedestal Shiled
Applied Materials/AMAT 0200-09603 Pipe Insulating ESC
Applied Materials/AMAT 0020-30347 Cylinder external
SVG 859-8027-004 G PCB DELIM LOWER Board
LEUKHARDT SYSTEMS HFL-1 210.01 Module
TYAN Thunder S2892 With dual CPU / 4GB RAM Motherboard
MKS Instruments 253B-11247 Throttling Valve
HP Agilent 85680-60121 A12 RF Interface Boad Assembly U
Yaskawa SGMAH-A5A1A-YB11 AC Servo Motor 50W 200V 0.6A
EDWA*** D14641000 AIM-S-NW25 ACTIVE GAUGE 13.5-36V DC 2
CIRQTEL LM17-3G6AA 9135-0196-1 Filter Low Pass
Applied Materials 0240-50375 Brooks Transponder Reader
HP Agilent A22 66522 Module for 3585A
Cisco 871 4-Port 10/100 Wireless Router
Lot OF 6 PicoLight 4Gb Fibre Channel Transceiver PLRXPL
Q-Logic TSI310-133CE TSI310 Tundra 4-port Gigabit Adapt
HP Agilent 03585-66575 PS CONTROL BOARD ASSY for 3585A
Horiba-Stec MFC SEC-4400M 2 SLM GAS: NF3 Mass Flow Cont
HP Agilent 08672-60017 BOARD ASSY for 8672A
HP Agilent 08672-60116 Board for 8672A
Tripp Lite Isobar Ultra Diagnostic Surge Suppressor ISO
Perkin Elmer Alignment Beamsplitter
Horiba STEC SEC-Z512MG Mass Flow Controller AMAT 3030-1
LOT OF 3 SPRAGUE POWERLYTIC 36DX9851 5800-40 DC 8347C 0
HP Agilent 08672-60046 MOD METER BOARD for 8672A
HP Agilent 08672-60047 Level Control Board for 8672A
HP Agilent 08672-60051 YTM DRIVER BOARD for 8672A
AMAT / APPLIED MATERIALS / INTEL 99N1228 CL-125108A27 C
AERA FC-7810CD MFC 15 SLM CO2 15000 SCCM 4VCR NOVELLUS
AMAT Applied Materials 0100-20353 Operator Control Pane
VeriFlow ***C 45800978-2 ***CQ2M1CRO130E60102 153560 250P
VeriFlow ***C 45800978-2 ***CQ2M1CRO130E60102 172980 250P
DELL 2R152 FLOPPY DRIVE MODULE FOR DELL D820
Hitachi Ultrastar 36GB IC35L036UWDY10-0 08K0342 68P Ult
Mean Well SP-500B-R6 Power Supply
TOKYO ELECTRON 3D10-250834-V1 CEL OX T10-75-C912 Part P
Nortel NT7R52AB Rlse 01 Card
IXIA 400 Traffic Generator /Performance Analyzer 870-04
MKS Instruments 631C11TBFH Baratron Capacitance Manomet
HP Agilent 03585-66534 BOARD ASSY for 3585A
NOHAU EMUL 31-PC EMULATOR Board
Keyence Micro Optical Photoelectric Sensor PZ2-62P
VeriFlow ***C 45800978-2 ***CQ2M1CRO130E6?0102 173120 250P
Equinox 910256-004 SST-64/128P UNIV Interface Adapter C
HP Agilent 08673-67001 PRE AMPLIFIER / MOD ASSY 2-6.5 G
Eurotherm 017-002-03-0210?-01-05 Controller
Eurotherm Thyristor Controller
AMAT Applied Materials 0010-21745 Endura 5500 Operator
MKS 99J1424 LPJ1-40-AK 02-194257-01 VALVE
Intel Server Board S3000AH With CPU
HP Overland MSL6000 LTO Tape Library PickerAssembly 607
COSEL P15E-15 P15E-15-N 15V 1A AC 9230213H
Panasonic M***021A3NX AC Servo Motor 80V 2.5A 0.2kW 200H
HP Agilent 03585-66562 Board for 3585A
Applied Materials / AMAT 0040-82032 COVER 6" VIEW PORT
Tylan MFC 2900 FC-2900M 200 SCCM Gas: BCL3 Mass Flow Co
Nokia 469089A.206 TSDB BSS
Nokia 467869A.105 BB2A BSS
***C Pneumatic VH212-F02 SDD HAND VALVE
Hitachi 569-5551 25696751 569-5555 NEVAC Board
Horiba STEC SEC-4400M Mass Flow Controller 100 CCM CI2
Bruker axs MAD 311 With Siemens KFF-M0-4K 341363 60kV 2
Firefly 532nm 0.5m W 1711-07-000 073928-25552-26 lens
Sanyo Denki PM-UDPD2A01-30 PM-Driver Card
DVTel VID-0630 Camera
Lexmark / IBM 99A0629 Optra S/SC Coax Twinax Adapter Ca
ABB EXTREL HEAT QIV 811248 811249 MODULE
T&T 4010M12C-NF1 & MW-410M12C 12VDC Fan
SINOMETER VC2002 FUNCTION SIGNAL GENERATOR
PRI Automation 70019886 REV A SYSTEM I/O ISO XMITTER
PRI Automation 70003062 REV B SYSTEM I/O ISOL RCVR
***C AW3000-03BDG 0.05-0.85MPa Regulator
Mean Well SP-500A-R5 Power Supply
Applied Materials 0150-G8320
Gilat Satellite networks SkyEdge SE Call 543300 54XXXX
EDWA*** LOWARA CENTRIFUGAL PUMP SV206N07 Y11501128 1025
IBM 19P5427 Lto Ultrium2 Tape Drive
SVG/A***L/Perkin Elmer 851-8470 A2701 Board