sampling voltmeter

sampling voltmeter

[′sam·pliŋ ′vōlt‚mēd·ər]
(engineering)
A special type of voltmeter that detects the instantaneous value of an input signal at prescribed times by means of an electronic switch connecting the signal to a memory capacitor; it is particularly effective in detecting high-frequency signals (up to 12 gigahertz) or signals mixed with noise.
References in periodicals archive ?
A wideband (10 Hz to 1 GHz) sampling voltmeter (WSV) has been developed that greatly improves NIST's ability to perform accurate measurements of various electrical waveform parameters.
Simulations made for a sampling voltmeter showed that the errors in the measured rms amplitude have a non-normal probability distribution, such that the probability of large errors is much greater than would be expected from the usual quantization noise model.
The NIST wideband sampling voltmeter is a precision equivalent-time waveform digitizing instrument for making accurate measurements of repetitive signals ranging in frequency from 10 Hz to 200 MHz.