National Instruments NI 5922, Процедура калибровки

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CALIBRATION PROCEDURE
NI 5922
This document describes specific programming steps for writing
a calibration utility for the National Instruments PXI-5922
flexible-resolution digitizer. This calibration procedure is intended
for metrology labs.
Contents
Introduction ............................................................................................. 2
Self-Calibration................................................................................ 2
External Calibration ......................................................................... 2
Calibration Intervals ........................................................................ 2
Software and Documentation........................................................... 2
Self-Calibration Procedures .................................................................... 4
MAX ................................................................................................ 5
Scope SFP ........................................................................................ 5
NI-SCOPE ....................................................................................... 5
External Calibration Options .................................................................. 6
Complete Calibration ....................................................................... 7
Optional Calibration ........................................................................ 8
External Calibration Requirements ......................................................... 10
Test Equipment ................................................................................ 10
Test Conditions ................................................................................ 10
External Calibration Procedures ............................................................. 11
Verifying NI 5922 Specifications .................................................... 11
Vertical Offset Accuracy .......................................................... 12
Noise ......................................................................................... 13
Input Bias Current .................................................................... 15
Vertical Gain Accuracy ............................................................ 17
Timing Accuracy ...................................................................... 19
Flatness ..................................................................................... 20
Trigger Sensitivity .................................................................... 24
Adjusting the NI 5922...................................................................... 25