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Glossary
VXI-SC-1102/B/C User Manual G-2
©
National Instruments Corporation
amplification a type of signal conditioning that improves accuracy in the resulting
digitized signal and reduces noise
API application programming interface
B
bus the group of conductors that interconnect individual circuitry in a
computer. Typically, a bus is the expansion vehicle to which I/O or
other devices are connected. Examples of PC buses are the AT bus,
NuBus, Micro Channel, and EISA bus.
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.
CH<0..31> - negative input channels 0 through 31
CH<0..31>+ positive input channels 0 through 31
CJC cold-junction compensation—a method of compensating for
inaccuracies in thermocouple circuits
CJSENSOR cold-junction sensor
D
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
DC direct current