Noise Diagnostics of Insulating Materials for Operation at High Temperature
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F01%3APU23918" target="_blank" >RIV/00216305:26220/01:PU23918 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Noise Diagnostics of Insulating Materials for Operation at High Temperature
Original language description
The samples of insulation materials for operation at temperatures to 350 oC were tested in a high electric field. Tested materials covered with metal electrodes on both sides represent a parallel plate capacitor. The VA characteristics are proportional to U^n where n ~ 1. Partial discharges have an impact on conductivity at a high electric field and they are important sources of noise and acoustic emission signals. This phenomenon is related to the sample homogeneity and may be used for technology assesssment and quality testing. The electromagnetic signal precedes the acoustic emission response and the time delay corresponds to the difference of propagation velocities of sound and electromagnetic radiation in the sample. This phenomenon may be used for the localization of voids in an insulator. A current pulse generated by a random discharge in a void within the insulator is represented by an exponentially decreasing function, whereas the acoustic signal exhibits a quasiperiodic dampe
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA102%2F99%2F1088" target="_blank" >GA102/99/1088: Noise spectroscopy and diagnostics of insulating systems with high temperature-proof materials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2001
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of ICNF 2001
ISBN
981-02-4677-3
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
759-762
Publisher name
University of Florida, Gainesville, Florida, USA
Place of publication
Gainesville, Florida, USA
Event location
Gainesville Florida USA
Event date
Oct 22, 2001
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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