National Instruments 321906B-01 用户手册
Glossary
G-4
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National Instruments Corporation
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
of its inputs to its output, typically at high speeds, in order to measure
several signals with a single analog input channel
mux
See multiplexer.
N
NI-SWITCH
an IVI-based instrument driver that supports the National Instruments line
of switch cards
of switch cards
P
PXI
PCI with extensions for instrumentation
R
random scanning
scanning the channels in a mux in any order
relay
a switch that connects or disconnects the signal to a common through the
physical movement of a metal arm
physical movement of a metal arm
RMA
Return Material Authorization
rms
root mean square—the square root of the average value of the square of the
instantaneous signal amplitude; a measure of signal amplitude
instantaneous signal amplitude; a measure of signal amplitude
RTD
resistance temperature detector—a metallic probe that measures
temperature based upon its coefficient of resistivity
temperature based upon its coefficient of resistivity
S
s
seconds
scan
the data acquisition of signals connected to multiple channels of a
multiplexer. Typically, the measurement device uses a trigger to
advance the multiplexer to the next channel in the scan.
multiplexer. Typically, the measurement device uses a trigger to
advance the multiplexer to the next channel in the scan.
scan list
a list of channels supplied to NI-SWITCH that indicates the order in which
channels will be scanned
channels will be scanned