Glossary
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National Instruments Corporation
G-7
multiplex
To route one of many input signals to a single output.
mutliplexed mode
An SCXI operating mode in which analog input channels are multiplexed
into one module output so that the cabled E/M Series DAQ device has
accessed the module’s multiplexed output as well as the outputs of all other
multiplexed modules in the chassis.
N
NC
Normally closed, or not connected.
NI-DAQ
The driver software needed in order to use E/M Series DAQ devices and
SCXI components.
noise
An undesirable electrical signal—noise comes from external sources such
as AC power lines, motors, generators, electrical storms, welders, radio
transmitters, and internal sources such as semiconductors, resistors, and
capacitors. Noise corrupts signals you are trying to measure.
nonlinearity
For an amplifier, a measure of the maximum output deviation from an ideal
linear response in units of percent relative to full scale. The ideal linear
response is taken to be a straight line on a plot of measured output voltage
to measured input voltage with the ends of the line connecting the extremes
of the plot at the full-scale limits.
O
OUT
Output signal.
OUT REF
Output reference signal.
overvoltage protection
Maximum voltage that does not cause hardware damage.
