National Instruments NI 6731 Скачать руководство пользователя страница 12

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NI 6711/6713/6731/6733 Calibration Procedure

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Verifying the Counter

Figure 2.

Verifying the Counter

GPCTR_Control (deviceNumber,0,ND_RESET)

GPCTR_Set_Application (deviceNumber,0,ND_PULSE_TRAIN_GNR)

GPCTR_Change_Parameter (deviceNumber,0,ND_COUNT_1,2)

GPCTR_Change_Parameter (deviceNumber,0,ND_COUNT_2,2)

Select_Signal (deviceNumber,ND_GPCTR0_OUTPUT,ND_GPCTR0_OUTPUT,ND_LOW_TO_HIGH)

GPCTR_Control (deviceNumber,0,ND_PROGRAM)

Содержание NI 6731

Страница 1: ...ed for calibrating NI 6711 6713 6731 6733 devices Note Refer to ni com support calibrat mancal htm for a copy of the ni671xCal dll file What Is Calibration Calibration consists of verifying the measur...

Страница 2: ...en calibrated with respect to an external standard However external variables such as temperature can still affect measurements The new calibration constants are defined with respect to the calibratio...

Страница 3: ...imize connections and test conditions during calibration Keep connections to the NI 6711 6713 6731 6733 short Long cables and wires act as antennae picking up extra noise which can affect measurements...

Страница 4: ...w to configure the device in NI DAQ Refer to the NI 671X 673X User Manual for detailed installation instructions You can install this manual when you install NI DAQ 1 Power down the computer 2 Install...

Страница 5: ...DAQ User Manual for PC Compatibles at ni com manuals These two documents provide detailed information about using NI DAQ The function reference help includes information on the functions in NI DAQ Th...

Страница 6: ...those specified by the calibration procedure 2 To internally calibrate the device call the Calibrate_E_Series function with the following parameters set as indicated calOP set to ND_SELF_CALIBRATE set...

Страница 7: ...ifying the Performance of the Counter This procedure verifies the performance of the counter The NI 6711 6713 6731 6733 devices have only one timebase to verify so you only need to verify counter 0 Be...

Страница 8: ...nnot modify these values which provides a level of security that ensures users do not accidentally access or modify any calibration constants adjusted by the metrology laboratory This step in the cali...

Страница 9: ...om the device The device is now adjusted with respect to the external source After the device is adjusted you can verify the AO operation by repeating the Verifying Analog Output section Specification...

Страница 10: ...r the test point value should fall between the upper and lower limit values These limits are expressed in volts Counters Because you cannot adjust the resolution of the counter timers these values do...

Страница 11: ...Programs National Instruments NI DAQ NI DAQ Help and the NI DAQ User Manual for PC Compatibles at ni com manuals for additional information on the software structure Verifying Analog Output Figure 1 V...

Страница 12: ...CTR_Control deviceNumber 0 ND_RESET GPCTR_Set_Application deviceNumber 0 ND_PULSE_TRAIN_GNR GPCTR_Change_Parameter deviceNumber 0 ND_COUNT_1 2 GPCTR_Change_Parameter deviceNumber 0 ND_COUNT_2 2 Select...

Страница 13: ...djusting the NI 6711 6713 6731 6733 Figure 3 Adjusting the NI 6711 6713 6731 6733 Calibrate_E_Series deviceNumber ND_SELF_CALIBRATE ND_USER_EEPROM_AREA 0 Get_Cal_Date deviceNumber CalDate Calibrate_E_...