| 摘要 |
The proposed device for measuring capacitance contains a high-frequency oscillator, a unit for setting a measurement mode, an amplifier and a detector that are connected in series, a digital-to-analog converter, a pulse generator, a pulse counter, a computing unit, a reference voltage source, and additionally, two gain-controlled amplifiers, two AND logic elements with three inputs, two comparators, and a pulse forming circuit. The proposed device provides increased signal-to-noise ratio and reduced measurement error.
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