论文信息 - A very accurate measurement system for multielectrode capacitive sensors

A very accurate measurement system for multielectrode capacitive sensors

A very accurate capacitance-measurement system consisting of a discrete capacitance-dependent oscillator and a microcontroller has been developed. It can measure multielectrode capacitors with capacitances up to 2 pF, with an accuracy of 100 ppm with respect to a reference capacitor. The resolution amounts to 50 aF with a total measurement time of 300 ms.

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