Title :
Characteristic of space charge distribution under DC stress in glass materials
Author :
Miyake, Hiroake ; Tanaka, Yasuhiro ; Takada, Tatsuo ; Hanai, Masahiro
Author_Institution :
Electron. Meas. Lab., Musashi Inst. of Technol., Tokyo, Japan
Abstract :
The characteristics of space charge accumulation under DC stress in glass materials were investigated using the pulsed electro-acoustic method. However, the observed signal was an incomprehensible signal. To understand the observed signal, a measurement of the glass material with a PET film, which was used as a suppression layer for charge injection, was carried out. From this measurement, it is found that hetro space charges were accumulated in glass material under DC stress. One of the reasons for the incomprehensible signal is thought to be a mismatch of acoustic impedance. Therefore, in this paper, the analysis of observed acoustic signal was carried out by calculating the signal ratio at the interface between the sample and electrodes
Keywords :
acoustic impedance; charge measurement; glass; insulating materials; space charge; DC stress; PEA method; acoustic impedance mismatch; acoustic signal analysis; charge injection suppression layer; glass materials; hetro space charges; pulsed electro-acoustic method; space charge accumulation characteristics; space charge distribution; Acoustic measurements; Charge measurement; Current measurement; Extraterrestrial measurements; Glass; Impedance; Positron emission tomography; Pulsed electroacoustic methods; Space charge; Stress measurement;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-6413-9
DOI :
10.1109/CEIDP.2000.885244
