National Instruments Module SCXI-1125 Manual do Utilizador descarregar pdf (Página 97)

Glossary

SCXI-1125 User Manual G-10 ni.com

thermocouple A temperature sensor created by joining two dissimilar metals. The

junction produces a small voltage as a function of the temperature.

typ typical

UL Underwriters Laboratory

Vvolts

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.

virtual channels

Channel names that can be defined outside of the application and used

without having to perform scaling operations. Virtual channels are called

custom channels in MAX 3.0 and later.

voltage excitation A source that supplies the voltage needed by a sensor for its proper

operation.

rms

volts, root mean square

working isolation A level of protection pertaining to a working voltage.

working voltage The highest voltage that should be applied to a product in normal use,

normally well under the breakdown voltage for safety margin.

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National Instruments Module SCXI-1125 Manual do Utilizador Página 97