Title :
Signal recovery of space charge distribution using acoustic property in PEA method
Author :
Yoshinobu Murkami;Takuma Sugiyama;Tomohiro Kasashima;Masayuki Nagao;Masumi Fukuma
Author_Institution :
Dept. of Electrical, Electronic and Information Engineering, Toyohashi University of Technology, Japan
fDate :
7/1/2015 12:00:00 AM
Abstract :
The pulsed electroacoustic (PEA) method is a useful electrical insulation evaluation technology, which visualizes the space charge in the bulk material using an acoustic pressure wave. Several methods to correct the space charge distribution due to the attenuation and dispersion of the pressure wave have been proposed. However, to improve the precision of the PEA method, herein the appearance acoustic impedance of the semiconducting electrode is estimated in an actual PEA system equipped with a function to measure the acoustic properties, and a new signal recovery method for space charge distribution is proposed.
Keywords :
"Acoustics","Electrodes","Space charge","Acoustic measurements","Attenuation","Charge measurement","Reflection"
Conference_Titel :
Properties and Applications of Dielectric Materials (ICPADM), 2015 IEEE 11th International Conference on the
Electronic_ISBN :
2160-9241
DOI :
10.1109/ICPADM.2015.7295279
