Prinsippet for å måle kapasitans med et multimeter
I det billige multimeteret oppnås kapasitansmålingen ved å konvertere ladetiden til den målte kapasitansen til en puls gjennom tidsbasekretsen, integrere pulsen og deretter måle den integrerte verdien.
Slightly better may use quadrature detection, that is, the so-called digital bridge, after measuring the phase difference, use the single-chip microcomputer to calculate the result of the reactance. In addition, the frequency method can also be used to measure the capacitance through the frequency change of the oscillation circuit. C diff -> Freq Diff frequency change can be measured with a counter, or read out with a voltmeter for F ->V-konvertering.
