Test & Measurement Glossary

In this glossary you will find about 500 terms, abbreviations and acronyms used in the world of test, measurement, and electronics. The following figure shows the number of entries of the selected letter of the alphabet.

There are 468 entries in this glossary.

Term	Definition
UTP	Unit Test Period
UUT	Unit under Test
uV	Microvolt (1/1,000,000 V)
V/F	Voltage to Frequency
V/I	Voltage/in-Current
V/m	Volts per Meter (standard unit of electric field strength)
VAR	Volt-Ampere Reactive (unit used to measure reactive power in an AC electric power system)
Vector Network Analyser	An instrument that measures the network parameters of electrical networks. A Vector Network Analyzer measures both amplitude and phase properties
VFC	Voltage to Frequency Converter
VI	Virtual Instrument
VISA	Virtual Instrument Software Architectur
VLF	Very Low Frequency (below 30 kHz)
VNA	Vector Network Analyser (instrument that measures the network parameters of electrical networks, a Vector Network Analyzer measures both amplitude and phase properties)
VSWR	Voltage Standing Wave Ratio
VT	Voltage Threshold

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