• DocumentCode
    1479045
  • Title

    Simplified digital acquisition of microdischarge pulses

  • Author

    Ficker, T. ; Macur, J. ; Pazdera, L. ; Kliment, M. ; Filip, S.

  • Author_Institution
    Fac. of Civil Eng., Tech. Univ. Brno, Czech Republic
  • Volume
    8
  • Issue
    2
  • fYear
    2001
  • fDate
    4/1/2001 12:00:00 AM
  • Firstpage
    220
  • Lastpage
    227
  • Abstract
    A new concept of the measurement of the height of microdischarge pulses is proposed and implemented on a special hardware assembly. The concept utilizes the highly asymmetric shape of microdischarge pulses, i.e. the sharp rise edge and slowly decaying tail that forms an almost `horizontal´ plateau. The maximum height of a pulse can be determined by imposing a certain time delay in saving sample points. The time delay must be equal to or longer than the time necessary for the full rise of the front edge of the pulse. The new concept completely removes time-consuming procedures seeking for signal local maxima used in current digitizers with logic circuits. This makes the system very fast and brings it to the very limit of the underlying natural process itself which represents the main advantage compared with other existing methods. A certain disadvantage of the new concept is in its restriction to asymmetric pulses only, but, however, this class of pulses comprises the broad spectrum of pulsating phenomena appearing in various branches of science and technology. This gives the proposed concept good applicability not only in the field of electric microdischarges but also in many other experimental domains
  • Keywords
    data acquisition; discharges (electric); insulation testing; asymmetric pulses; asymmetric shape; digital acquisition; horizontal plateau; microdischarge pulses; pulsating phenomena; signal local maxima; time delay; Delay effects; Dielectrics and electrical insulation; Logic circuits; Optical pulse shaping; Optical pulses; Physics; Pulse measurements; Shape measurement; Solids; Surface discharges;
  • fLanguage
    English
  • Journal_Title
    Dielectrics and Electrical Insulation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1070-9878
  • Type

    jour

  • DOI
    10.1109/94.919935
  • Filename
    919935