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单词 sampling voltmeter
释义 sampling voltmeter
[`sam·pliŋ `vōlt´mēd·ǝr]
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.
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