National Instruments 1191 用户手册
Glossary
© National Instruments Corporation
G-3
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
RF
radio frequency
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
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
S
s
seconds
SCXI
Signal Conditioning eXtensions for Instrumentation—the National
Instruments product line for conditioning low-level signals within an
external chassis near sensors so only high-level signals are sent to DAQ
boards in the noisy PC environment
Instruments product line for conditioning low-level signals within an
external chassis near sensors so only high-level signals are sent to DAQ
boards in the noisy PC environment
V
V
volts
VDC
volts, direct current
Vp-P
volts peak to peak