Application of Charge-Sensitive Preamplifier for the Calibration of Partial Discharge Calibrators Below 1 pC

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    6 Citations (Scopus)

    Abstract

    Modern partial discharge (PD) calibrators often have their lowest range below 1 pC. However, traceable calibration services below 1-pC charges are not widely available, or their uncertainties are relatively high because of low signal levels. We have applied a commercial charge-sensitive preamplifier for the low-level calibration of PD calibrators. This calibration method both improves the signal-to-noise ratio and performs the analog integration of the PD pulse. The drooping response of the preamplifier is corrected using software. Comparison with a reference PD calibrator supports an expanded uncertainty less than 1% down to 0.1 pC and 3% for 0.01 pC.
    Original languageEnglish
    Article number8640062
    Pages (from-to)2034-2040
    JournalIEEE Transactions on Instrumentation and Measurement
    Volume68
    Issue number6
    DOIs
    Publication statusPublished - Jun 2019
    MoE publication typeA1 Journal article-refereed

    Funding

    This project has received funding from the EMPIR programme co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme.

    Keywords

    • Calibration
    • measurement
    • measurement techniques
    • measurement uncertainty
    • partial discharges (PD)

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