Glossary
SCXI-1190/1191/1192User Manual G-2 ni.com
D
DAQ data acquisition
dB decibel
DC directcurrent
device aplug-in board, card, or pad that can contain multiple channels and
conversiondevices. Some exa mples of devices are c omputers,
multimeters, multiplexers, oscillators, operator interfaces, and
counters.
digitalm ultimeter amultifunction meter used to make measurements such as voltage, current,
resistancefrequency, temperature, and so on
DMM See digital multimeter
drivers/driversoftware softwarethat controls a specific hardware device such as a switch card
H
Hz hertz—the number of scansr eado r updatesw ritten per second
I
isolation am easure of the amount of cross-talk between channels
IVI InterchangeableVirtual Instrument
in. inches
M
MB megabytesof memory
multiplexer aswitching device with multiple inputs that sequentially connects each
of its inputs to its output,typically at high speeds, in order to measure
several signals witha single analog inputchannel