Glossary
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National Instruments Corporation
G-5
MIO
multifunction input/output
multiplexed mode
an SCXI operating mode in which analog input channels are multiplexed
into one module output so that your cabled E Series DAQ device has access
to the multiplexed output of the module as well as the outputs of all other
multiplexed modules in the chassis
mux
multiplexer—a switching device with multiple inputs that sequentially
connects each of its inputs to its single output, typically at high speeds, in
order to measure several signals with a single analog-to-digital converter
N
NC
not connected (signal)
NI-DAQ
the driver software needed in order to use NI E Series DAQ devices and
SCXI components
noise
an undesirable electrical signal—noise comes from external sources such
as AC power lines, motors, generators, transformers, fluorescent lights,
soldering irons, CRT displays, computers, electrical storms, welders, radio
transmitters, and internal sources such as semiconductors, resistors, and
capacitors; corrupts signals you are trying to measure
NRSE
nonreferenced single-ended mode—all measurements are made with
respect to a common measurement system reference, but the voltage at this
reference can vary with respect to the measurement system ground
O
OUTREF
output reference signal
P
parallel mode
a type of SCXI operating mode in which the module sends each of its
output channels directly to a separate analog input channel of the E Series
DAQ device connected to the module
peak to peak
a measure of signal amplitude; the difference between the highest and
lowest excursions of the signal
ppm
parts per million
