An Instantaneous Peak Voltmeter

Abstract
The article presents an analysis of the function and limitations of the simple diode condenser charging peak voltmeter circuit. It also describes a new circuit which makes possible instantaneous measurements of amplitudes of random pulses over a wide range of pulse width and frequency and regardless of the amplitude of the previous pulse. The circuit presented is used to measure the peak voltage of square pulses from 0.1 to 20 msec duration at frequencies as low as 0.2 sec, used for stimulation of nervous tissues.

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