| 摘要 |
Devices for measuring the effective value of an input waveform are disclosed which employ one or more amplifiers and a feedback path for supplying a feedback signal to the input of the detector which has a value such that the average output value of the waveform from the measuring circuit is substantially equal to the effective value of the input waveform. The output waveform is coupled to a conventional average measuring device, such as a meter, to obtain a measurement of the RMS (root-mean-square) or the effective value of the input waveform.
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