National Instruments PXI-6031E, Руководство пользователя

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Chapter 2 Analog Input
© National Instruments Corporation 2-5 E Series User Manual
Note You can calibrate NI 6011E and NI 6030E/6031E/6032E/6033E circuitry for either
unipolar or bipolar polarity. If you mix unipolar and bipolar channels in the scan list and
you are using NI-DAQ, NI-DAQ loads the calibration constants appropriate to the polarity
for which AI channel 0 is configured.
Analog Input Terminal Configuration
To be flexible enough to interface with various signal sources, E Series
devices have three different terminal configurations, also referred to as
input modes: Non-Referenced Single-Ended (NRSE) input, Referenced
Single-Ended (RSE) input, and differential (DIFF) input. Table 2-4
describes the three input configurations.
Refer to the Connecting Analog Input Signals section for more information
about using these input configurations.
Table 2-3. Input Ranges for NI 6023E/6024E/6025E and NI 6034E/6035E/6036E
Input Range Gain
Resolution
NI 6023E/6024E/6025E NI 6034E/6035E/6036E
–10 to +10 V 0.5 4.88 mV 305 µ V
–5 to +5 V 1 2.44 mV 153 µ V
–500 to +500 mV 10 244 µ V 15.3 µ V
–50 to +50 mV 100 24.4 µ V 1.53 µ V
Table 2-4. Analog Input Terminal Configuration
AI Terminal Configuration Description
DIFF A channel configured in DIFF mode uses two AI lines.
One line connects to the positive input of the device
programmable gain instrumentation amplifier (PGIA), and the
other connects to the negative input of the PGIA.
RSE A channel configured in RSE mode uses one AI line, which
connects to the positive input of the PGIA. The negative input
of the PGIA is internally tied to AI ground (AI GND).
NRSE A channel configured in NRSE mode uses one AI line, which
connects to the positive input of the PGIA. The negative input
of the PGIA connects to the AI sense (AI SENSE) input.