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Influence quantities in the calibration of PD calibrators contribution to the uncertainty estimate

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6 Author(s)
Gobbo, R. ; Dept. of Electr. Eng., Padova Univ., Italy ; Pesavento, G. ; Sardi, A. ; Varetto, G.
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The numerical integration of the current pulse delivered from a PD calibrator is the easiest way to carry out a performance test of the calibrator itself by using readily available experimental apparatus. The paper discusses the role and the relative importance of the various influence quantities which intervene in the measurement and can contribute to degrade the uncertainty figure. It is shown that type and length of connecting leads as well as the bandwidth of the scope can have only a second order influence, whereas the correct estimate of the vertical sensitivity and the procedure used to carry out the integral, namely the definition of the base line and the choice of the integration limits, can play a more significant role

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High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)  (Volume:5 )

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