For an example of measuring capacitance, assume C is approximately equal to 1000 pF and let f equal 1 MHz. Calculate as: Use a 301-Ω resistor or any convenient value of approximately 250 Ω to 500 Ω in ...

An old Electronics Designer’s Casebook described a circuit that provided capacitance measurements of 10 pF to 1 µF with 1% accuracy (Reference 1 ). A number of issues emerged with the circuit during ...

This requires at least one known value – in this case a 0.1% resistor – by measuring the time it takes for this circuit to oscillate, an unknown capacitance can be calculated.

Uni-President China. has filed a patent for a capacitance measurement circuit. The circuit includes an analog front-end circuit, a parasitic capacitor, an analog to digital converter (ADC), an output ...