APPARATUS FOR MEASURING SPACE CHARGE DISTRIBUTION, METHOD OF MEASURING SPACE CHARGE DISTRIBUTION USING THE SAME, AND HIGH-TEMPERATURE INSULATING MATERIAL MEASURED USING THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide an apparatus capable of measuring space charge distribution in a higher temperature environment than a conventional one; and also to provide a method of measuring space charge distribution using the same so as to provide a high-temperature insulating material measured using the method.;SOLUTION: The apparatus for measuring space charge distribution includes: a pair of electrodes 1, 2 opposed to each other across a sample S; a heater 3 for heating at least one of the pair of electrodes 1, 2; a sensor 4 that is disposed on the electrode 1 and that comprises a heatproof piezoelectric element; an amplifier 5 for receiving via signal lines 18, 19 pulse-form signals generated at the sensor 4 by applying a pulsed electric field to the sample S and then amplifying the pulse-form signals; and a signal processing means for determining a space charge distribution by performing signal processing of signals amplified by the amplifier 5. The apparatus for measuring space charge distribution further includes a heat-resistant support 15 wherein the sensor 4 is held between the support 15 and the electrode 1 so that the sensor 4 is attached to the electrode 1.;COPYRIGHT: (C)2010,JPO&INPIT