Glossary
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National Instruments Corporation
G-7
multidrop
refers to a serial network with multiple devices
mux
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.
N
N/A
not applicable
NB
NuBus
NC
not connected
NI-DAQ
refers to the NI-DAQ software for PC compatibles unless otherwise noted
NRSE
nonreferenced single-ended mode
O
oscillator
a circuit or device that produces a sine or square wave output
output settling time
the amount of time required for the analog output voltage to reach its final
value within specified limits
P
PGIA
programmable-gain instrumentation amplifier
phase-shift
the angular difference between identical reference points in two oscillating
signals
port
a digital port, consisting of four or eight lines of digital input and/or output
posttriggering
the technique used on a DAQ device to acquire a programmed number of
samples after trigger conditions are met
ppm
parts per million
pretriggering
the technique used on a DAQ device to keep a continuous buffer filled with
data, so that when the trigger conditions are met, the sample includes the
data leading up to the trigger condition
