National Instruments SCXI-1112, Руководство пользователя

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Glossary
SCXI-1112 User Manual G-2 www.natinst.com
ANSI American National Standards Institute
auto-zero the technique of internally shorting the internal circuit while disconnecting
the measurement to compensate for temperature-induced offset voltage
errors
C
C Celsius
CGND chassis ground signal
channel pin or wire lead to which you apply or from which you read the analog or
digital signal. Analog signals can be single-ended or differential. For digital
signals, you group channels to form ports. Ports usually consist of either
four or eight digital channels.
CJSENSOR cold-junction sensor
CMRR common-mode rejection ratio
D
D/A digital-to-analog
D*/A Data/Address
DAQ data acquisition—(1) collecting and measuring electrical signals from
sensors, transducers, and test probes or fixtures and inputting them to a
computer for processing; (2) collecting and measuring the same kinds of
electrical signals with A/D and/or DIO boards plugged into a computer, and
possibly generating control signals with D/A and/or DIO boards in the
same computer
dB decibel—the unit for expressing a logarithmic measure of the ratio of two
signal levels: dB=20log10 V1/V2, for signals in volts
DC direct current