CALIBRATION METHOD OF ELECTRIC CHARGE DENSITY IN SPACE-CHARGE DISTRIBUTION MEASUREMENT

Japanese Patent JP2015219116

A

PROBLEM TO BE SOLVED: To provide a calibration method of electric charge density in a space-charge distribution measurement capable of highly accurately performing calibration even when a space charge is generated by application of a DC voltage when calibrating the electric charge density in the space-charge distribution measurement of the inside of an insulation material.SOLUTION: The calibration method includes the steps of: when a voltage signal measured from a measurement sample 2 to which only a pulse voltage is applied, is defined as V1, a voltage signal measured from the measurement sample to which a pulse voltage is applied with a DC voltage applied thereto, is defined as V2, and, immediately after the step-down of the DC voltage, a voltage signal measured from the measurement sample 2 to which a pulse voltage is applied with it connected to ground, is defined as V3, acquiring a voltage signal V4 calculated by V2-V3+V1; and calibrating the charge density obtained from the voltage signal V2 using the voltage signal V4.

SHIGEMORI NAOTO

JP2014103050A

December 07, 2015

May 19, 2014

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VISCAS CORP

G01R29/24; G01R29/14

JPH09311122A	1997-12-02
JPH0452566A	1992-02-20
JP2010530530A	2010-09-09
JP2000046884A	2000-02-18

US20110102097A1

2011-05-05

福永　香: "”ＣＶケーブル絶縁体中の空間電荷分布の測定”", 電気学会論文誌Ａ, vol. 111, no. 11, JPN6017005646, November 1991 (1991-11-01), JP, pages 988 - 992

Einzel Felix-Reinhard
Kiyoshi Kuruma
Ueshima

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