| 摘要 |
A digital voltmeter which converts an input signal having an amplitude to be measured into a digital signal from which a series of pulses is developed having a duty cycle which is proportional to the amplitude of the input signal. These pulses are supplied are supplied to a digital-to-analog converter which develops an analog signal having an amplitude proportional to the duty cycle of the pulses and is compared with the input signal to stabilize the digital signal at a value corresponding to the amplitude of the input signal.
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