Studies of Elastic Waves in Ethylene Propylene Rubber Using Acoustic Emission Sensor
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概要
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The aim of our study is to investigate the relationship between lowering of the insulation performance of cross-linked polyethylene (CV) cable and partial discharges (PDs) followed by the dielectric breakdown and to establish a diagnostic technique using an acoustic emission (AE) sensor.In this study, we focused on characterization of AE signals detected from ethylene propylene rubbers (EPRs) used as insulating materials of CV cables. Elastic waves with various frequencies were added to the surface of the EPR, and then characteristics of the detected AE signals due to the elastic waves propagated in the EPR were evaluated. We showed characteristics of Lamb waves whose low frequency components around 100 kHz were large and their small attenuation characteristics.
- 2008-10-01
著者
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Takaoka Masanori
Department Of Internal Medicine Iii Osaka Medical College
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Sakoda Tatsuya
Department Of Electrical System And Computer Engineering Sojo University
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OTSUBO Masahisa
Department of Electrical and Electronic Engineering, University of Miyazaki
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Sakoda Tatsuya
Department Of Electrical And Electronic Engineering University Of Miyazaki
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Otsubo Masahisa
Department Of Electrical And Electronic Engineering University Of Miyazaki
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Takaoka Masanori
Department Of Electrical And Electronic Engineering University Of Miyazaki
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AKAIWA Shigeru
Miyazaki Branch, Kyushu Electric Power Co., Inc.
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IKI Masatoshi
Miyazaki Branch, Kyushu Electric Power Co., Inc.
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NAKANO Shigeharu
Miyazaki Branch, Kyushu Electric Power Co., Inc.
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Iki Masatoshi
Miyazaki Branch Kyushu Electric Power Co. Inc.
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Otsubo Masahisa
Department Of Electrical And Electronic Engineering Faculty Of Engineering University Of Miyazaki
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Akaiwa Shigeru
Miyazaki Branch Kyushu Electric Power Co. Inc.
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Sakoda Tatsuya
Department Of Electrical And Electronic Engineering Faculty Of Engineering University Of Miyazaki
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Nakano Shigeharu
Miyazaki Branch Kyushu Electric Power Co. Inc.
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