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Testing of low-current contacts quality and reliability by using third harmonic distortion

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2 Author(s)
Karel Hajek ; Dept. of Electron., Mil. Acad., Fac. of Air Force & Air Defense, Brno, Czech Republic ; Josef Sikula

This paper shows a new possibility for quality and reliability testing of low-current contacts by their non-linearity measurement. A common THD tester cannot be used for low impedance elements. Therefore, a special variant of the THD tester was developed. It was used for testing a set of relay contacts. The results of the tests proved the applicability of the proposed method.

Published in:

Electrical Contacts, 2003. Proceedings of the Forty-Ninth IEEE Holm Conference on

Date of Conference:

10-10 Sept. 2003