National Instruments NI 783xR Bedienungsanleitung PDF herunterladen (Seite 73)

Glossary

NI 783xR User Manual G-8 © National Instruments Corporation

THD Total harmonic distortion—The ratio of the total rms signal due to

harmonic distortion to the overall rms signal, in decibel or a percentage.

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

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

TTL Transistor-transistor logic.

two’s complement Given a number x expressed in base 2 with n digits to the left of the radix

point, the (base 2) number 2n – x.

V Volts.

VDC Volts direct current.

VHDCI Very high density cabled interconnect.

VI Virtual instrument—Program in LabVIEW that models the appearance and

function of a physical instrument.

Volts, input high.

Volts, input low.

Volts, output high.

Volts, output low.

rms

Volts, root mean square.

waveform Multiple voltage readings taken at a specific sampling rate.

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National Instruments NI 783xR Bedienungsanleitung Seite 73