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Glossary
DAQMeter DAQCard-4050 User Manual
G-10
©
National Instruments Corporation
U
UL
Underwriters Laboratory
update
the output equivalent of a scan. One or more analog or digital output
samples. Typically, the number of output samples in an update is equal
to the number of channels in the output group. For example, one pulse
from the update clock produces one update which sends one new sample
to every analog output channel in the group.
update rate
the number of output updates per second
V
V
volts
VDC
volts direct current
VI
virtual instrument—(1) a combination of hardware and/or software
elements, typically used with a PC, that has the functionality of a classic
stand-alone instrument (2) a LabVIEW software module (VI), which
consists of a front panel user interface and a block diagram program
V
rms
volts, root mean square value
W
waveform shape
the shape the magnitude of a signal creates over time
working voltage
the highest voltage that should be applied to a product in normal use,
normally well under the breakdown voltage for safety margin.