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Paper Abstract and Keywords
Presentation 2021-09-28 15:50
Fundamental Study on Measurement of Electric field Around Electric wires with Piezoelectric film
Shunkichi Takamatsu (NITTC), Takaya Yoshitake (UEC), Shinichiro Mito (NITTC)
Abstract (in Japanese) (See Japanese page) 
(in English) An inexpensive non-metal-contact voltage measurement has been attracting much attention, since voltage of a commercial power supply can be measured safely and conveniently. Therefore, some methods of measuring voltage from outside of an electric cable were presented and applied. However, almost of the all proposed methods require grounding, which means at least two probes are needed and application is difficult. In this study, we measured an electric field, which proportion to the voltage, emitted from the cable by a single probe. We used a piezoelectric film which has an electrode pair that sandwiches a dielectric to receive the electric field. The piezoelectric film placed over the electric cable and received the electric field that correlated to the voltage of the cable. The received electric field were converted to a potential difference between the electrode pair of the piezoelectric film. The measured waveform showed a high correlation coefficient of 0.99 with the voltage waveform applied to the cable, although there was a phase difference. The fabricated sensor had high linearity for electric field and stable frequency characteristics from 25 Hz to 1 MHz. The proposed measurement method is expected to be realize inexpensive and safe measurement devices that do not invade electric facilities.
Keyword (in Japanese) (See Japanese page) 
(in English) piezoelectric film / voltage sensor / electric field / Non-invasive measurement / Non-contact measurement / / /  
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Conference Information
Committee HPB  
Conference Date 2021-09-28 - 2021-09-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
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Paper Information
Registration To HPB 
Conference Code 2021-09-HPB 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fundamental Study on Measurement of Electric field Around Electric wires with Piezoelectric film 
Sub Title (in English)  
Keyword(1) piezoelectric film  
Keyword(2) voltage sensor  
Keyword(3) electric field  
Keyword(4) Non-invasive measurement  
Keyword(5) Non-contact measurement  
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1st Author's Name Shunkichi Takamatsu  
1st Author's Affiliation National Institute of Technology, Tokyo College (NITTC)
2nd Author's Name Takaya Yoshitake  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Shinichiro Mito  
3rd Author's Affiliation National Institute of Technology, Tokyo College (NITTC)
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Speaker Author-1 
Date Time 2021-09-28 15:50:00 
Presentation Time 12 minutes 
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