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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

  • DOI - Digital Object Identifier

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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BM - Solid-state physics and magnetism

  • OECD FORD branch

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

  • e-ISSN

  • 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