| Presentation | 2008-12-19 Internal Current Density and Its Safety Evaluation Due to Contact Currents from Charged Human Body Toshihiro NAGAI, Akimasa HIRATA, Osamu FUJIWARA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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 60Hz, 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) |
| Keyword(in English) | Charged human body / contact current / internal electric field / internal current density / FDTD simulation |
| Paper # | EMCJ2008-100 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2008/12/12(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| 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 |
| 1st Author's Name | Toshihiro NAGAI |
| 1st Author's Affiliation | Graduate School of Engineering, Nagoya Institute of Technology() |
| 2nd Author's Name | Akimasa HIRATA |
| 2nd Author's Affiliation | Graduate School of Engineering, Nagoya Institute of Technology |
| 3rd Author's Name | Osamu FUJIWARA |
| 3rd Author's Affiliation | Graduate School of Engineering, Nagoya Institute of Technology |
| Date | 2008-12-19 |
| Paper # | EMCJ2008-100 |
| Volume (vol) | vol.108 |
| Number (no) | 367 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |