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Paper Abstract and Keywords
Presentation 2008-12-19 16:30
Internal Current Density and Its Safety Evaluation Due to Contact Currents from Charged Human Body
Toshihiro Nagai, Akimasa Hirata, Osamu Fujiwara (NIT) EMCJ2008-100
Abstract (in Japanese) (See Japanese page) 
(in English) Contact currents flow from/into a human body, when touching an object such as a metal structure with a different electric potential due to electromagnetic field exposure, which should stimulate muscle and peripheral nerves. In this context, numerical analyses of electric fields induced by contact currents in a human body have been performed so far, while the effectiveness of computational methods for transient contact currents has not well been investigated. With a Japanese adult male model developed by National institute of Information and Communication Technology, we previously constructed the FDTD modeling for computing contact currents and the resultant body surface magnetic fields from a charged human, which was validated in comparison with measurement. In the present study, assuming that contact discharges from a charged human happen with a repetition frequency of 60 Hz, we simulated transient contact currents and internal electric fields of some selected voxels of central nerve tissues, and then computed their Fourier components in order to evaluate human safety based on criteria specified for simultaneous exposure to fields of different frequencies in the ICNIRP guideline and IEEE standard. As a result, we found that the both of contact currents and internal current densities for the human with a charge voltage of 1kV exceed the ICNIRP reference level and basic restriction respectively, whereas the internal electric fields are less than the IEEE basic restriction.
Keyword (in Japanese) (See Japanese page) 
(in English) charged human body / contact current / internal electric field / internal current density / FDTD simulation / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 367, EMCJ2008-100, pp. 81-86, Dec. 2008.
Paper # EMCJ2008-100 
Date of Issue 2008-12-12 (EMCJ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee EMCJ  
Conference Date 2008-12-19 - 2008-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Gifu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2008-12-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Internal Current Density and Its Safety Evaluation Due to Contact Currents from Charged Human Body 
Sub Title (in English)  
Keyword(1) charged human body  
Keyword(2) contact current  
Keyword(3) internal electric field  
Keyword(4) internal current density  
Keyword(5) FDTD simulation  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Toshihiro Nagai  
1st Author's Affiliation Nagoya Institute of Technology (NIT)
2nd Author's Name Akimasa Hirata  
2nd Author's Affiliation Nagoya Institute of Technology (NIT)
3rd Author's Name Osamu Fujiwara  
3rd Author's Affiliation Nagoya Institute of Technology (NIT)
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Speaker Author-1 
Date Time 2008-12-19 16:30:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2008-100 
Volume (vol) vol.108 
Number (no) no.367 
Page pp.81-86 
#Pages 6 
Date of Issue 2008-12-12 (EMCJ) 

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