Glossary
©NationalInstruments Corporation G-19 NI5102 User Manual
U
unipolar asi gnal range that is alwayspositive (for example, 0 to +10 V)
update theoutput 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 that sends one newsample to every
analog output channel in the group
update rate the number of output updates per second
V
V volts
VDC voltsdirect current
VDMAD virtualD MA driver
verticalsensitivity describes the smallest input voltage change the digitizer can capture
VI virtual instrument(1) a combination of hardware and/or software
elements,t ypicallyused 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
VIH volts,input hig h
VIL volts, input low
Vin voltsin
VOvolts,output
VOH volts,output hi gh
VOL volts, output l ow
Vpk-to-pk the maximum signal voltage minus the minimum signal voltage. This
reflects themaximum change in signal voltage and affects the vertical
sensitivityor gain of the inpu ta mplifier
Vref reference voltage