Pulsed capacitance measuring circuits and methods

Details Pulsed capacitance measuring circuits and methods Pulsed capacitance measuring circuits and methods

2008-02-07

2010-11-09

Natalini, Jeff (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S658000

Reexamination Certificate

active

07830157

ABSTRACT:
Capacitance measuring circuits and methods apply electrical charge pulses to ramp voltage signals across a voltage threshold, and use the number of pulses to determine the capacitance. Capacitances at multiple locations can be measured by storing a pulse counter value in a register associated with each voltage signal channel as that voltage signal crosses the threshold. Effects of electrode resistance on the capacitance measurements can be mitigated by using charge pulses to ramp the voltage signals and waiting for signal quiescence between pulses.

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