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Quasi-peak detector model for a time-domain measurement system

  • GE Global Research - Europe

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

In this paper, a quasi-peak detector mode for a time-domain electromagnetic interference (TDEMI) measurement system is described. Measurements were performed in the 30-1000-MHz range. The digital signal processing of EMI measurements can emulate in real time the modes of conventional analog equipment, e.g., peak, average, rms, and quasi-peak detector. With the presented time-domain measurement system, the measurement time can be reduced by a factor of ten. A novel signal recording routine for TDEMI measurements and quasi-peak detection is described. Measurement results obtained from the investigation of a drill machine, monitor, and laptop obtained with the TDEMI measurement system are discussed. The comparison of the results obtained with the described TDEMI measurement system and measurements performed with a conventional EMI receiver show an average deviation over the whole frequency range less than 3 dB.

Original languageEnglish
Pages (from-to)320-326
Number of pages7
JournalIEEE Transactions on Electromagnetic Compatibility
Volume47
Issue number2
DOIs
StatePublished - May 2005

Keywords

  • Digital signal processing
  • Electromagnetic interference (EMI)
  • Fast Fourier transform (FFT)
  • Measurement
  • Spectral analysis
  • Time-domain measurements

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