Method for destructive testing of dielectric ceramic capacitors

Details Method for destructive testing of dielectric ceramic capacitors Method for destructive testing of dielectric ceramic capacitors

1981-08-26

1983-08-16

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 60CD, G01R 3102

Patent

active

043994016

ABSTRACT:
This invention covers a destructive testing procedure in which a voltage 2.5 times the rated voltage is applied to the capacitor, at a relatively high current. The resistance in series with capacitors being tested is reduced step-by-step until the resistance value is reached such that the percentage of capacitor failures on any given sample of capacitors remains constant. Thereafter, all similar capacitors are tested at that resistance value and at 2.5 times the rated voltage. Those which do not explode exhibit remarkable reliability.

REFERENCES:
patent: 3735250 (1973-05-01), Masui
patent: 3755711 (1973-08-01), Fendt
French, Electrolytic Capacitance Meter, Inspec., Radio & Electronics Constructor, Sep. 1974, pp. 82-85.
Anolick et al., Automatic Ramper for Simultaneous Monitoring of Many Capacitors, IBM Tech. Discl. Bull., Apr. 1978, pp. 4491, 4492.
Baker, Multilayer Ceramic Capacitors Testing Methods, Bell Laboratories Inc., Jul. 1980, pp. 1-99.

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