Title :
Low-frequency noise in ZnO varistor structures
Author :
Hasse, L. ; Smulko, J. ; Kaczmarek, L.
Author_Institution :
Dept. of Optoelectron. & Electron. Syst., Gdansk Univ. of Technol., Gdansk, Poland
Abstract :
The noise spectroscopy has been used as a diagnostic tool of surge arrester varistor structures consisting of grained ZnO. The electrical properties of measured samples have been described. In the experimental study, the applied measurement system and the results of noise measurements for the selected structures of 280 V and 440 V varistors have been presented. Noise properties are related to electrical characteristics of measured specimens. It is suggested that the proposed procedure can be applied as an effective nondestructive testing method focused on defects and structural inhomogeneity detection in tested objects.
Keywords :
arresters; nondestructive testing; varistors; zinc compounds; Noise properties; ZnO; diagnostic tool; low-frequency noise; noise spectroscopy; nondestructive testing method; structural inhomogeneity detection; surge arrester varistor structures; varistor structures; voltage 280 V; voltage 440 V; Current measurement; Noise; Noise measurement; Spectroscopy; Varistors; Voltage measurement; Zinc oxide; ZnO varistor; diagnostics; low-frequency noise;
Conference_Titel :
Noise and Fluctuations (ICNF), 2011 21st International Conference on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4577-0189-4
DOI :
10.1109/ICNF.2011.5994388
