Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1992-03-27
1994-03-15
Tokar, Michael J.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
324676, G01R 2726
Patent
active
052948897
ABSTRACT:
A capacitance measuring circuit uses only a DC voltage source to perform the capacitance measurement. For this purpose, the circuit is arranged to charge an unknown capacitor which is being measured from a DC source and to discharge the capacitor through a constant current circuit such that the discharge voltage across the capacitor decreases linearly from its initial value to a predetermined, final value. The measurement circuit monitors the time taken by the capacitor to discharge in order to determine the capacitance value.
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IBM Technical Disclosure Bulletin El-Kareh et al., Jan., 1991.
Curtis Douglas R.
Heep Jerry J.
Brown Glenn W.
Tandy Corporation
Tokar Michael J.
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