QUALITY ASSESSMENT OF METAL OXIDE VARISTORS BY NOISE SPECTROSCOPY |
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| Lech Hasse, Janusz Smulko |
- Abstract:
- The noise spectroscopy in a frequency domain has been used as a diagnostic tool of high-voltage varistors consisting of grained ZnO. The electrical properties of tested specimens have been described. In this experimental study, we present the applied measurement system and the results of noise spectrum measurements for the selected structures of 280 V varistors. Noise properties are related to electrical characteristics of measured samples. It is suggested that the proposed procedure can be applied as an effective non-destructive testing method focused on defects and structural inhomogeneity detection in tested objects.
- Keywords:
- varistors, diagnostics, noise spectroscopy
- Download:
- IMEKO-WC-2009-TC10-351.pdf
- DOI:
- -
- Event details
- Event name:
- XIX IMEKO World Congress
- Title:
Fundamental and Applied Metrology
- Place:
- Lisbon, PORTUGAL
- Time:
- 06 September 2009 - 11 September 2009