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Glossary
SCXI-1190/1191/1192 User Manual G-2 ni.com
D
DAQ data acquisition
dB decibel
DC direct current
device a plug-in board, card, or pad that can contain multiple channels and
conversion devices. Some examples of devices are computers,
multimeters, multiplexers, oscillators, operator interfaces, and
counters.
digital multimeter a multifunction meter used to make measurements such as voltage, current,
resistance frequency, temperature, and so on
DMM See digital multimeter
drivers/driver software software that controls a specific hardware device such as a switch card
H
Hz hertz—the number of scans read or updates written per second
I
isolation a measure of the amount of cross-talk between channels
IVI Interchangeable Virtual Instrument
in. inches
M
MB megabytes of memory
multiplexer a switching device with multiple inputs that sequentially connects each
of its inputs to its output, typically at high speeds, in order to measure
several signals with a single analog input channel