| Presentation | 2013-01-25 FDTD Analysis of Induced Electric Field and Peak SAR in Human Body Due to Contact Current Junya HATTORI, Kwok Hung CHAN, Ilkka LAAKSO, Akimasa HIRATA, Masao TAKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Contact currents occur when a person touches conductive surfaces at different electric potentials. In the low frequency to intermediate frequency, the flow of current from an object to the body may result in the stimulation of peripheral nerves and the temperature elevation, which depends on the frequency of current. Therefore, the reference level is regulated in terms of injected current in the international guidelines/standard. Contact current which does not produce induced quantities exceeding the basic restriction is used as a reference level. Some recent studies conducted dosimetry for contact current but only at extremely low frequencies. In our previous study we proposed a quasi-static finite-difference time-domain (FDTD) method which has a feature in its capability for handling realistic structures and source at reasonable computational resources. This method extends a conventional FDTD method to solve quasi-static problems by choosing an appropriate waveform in voltage source. The present study first discusses an applicability of the quasi-static FDTD method for a human body in MHz region. Then the relationship between the basic restriction and reference level for contact current is discussed based on our computational results. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Contact current / Quasi-static FDTD method / in-situ electric field / Peak SAR |
| Paper # | PN2012-76,OPE2012-185,LQE2012-177,EST2012-112,MWP2012-94 |
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| Conference Information | |
| Committee | EST |
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| Conference Date | 2013/1/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electronic Simulation Technology (EST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | FDTD Analysis of Induced Electric Field and Peak SAR in Human Body Due to Contact Current |
| Sub Title (in English) | |
| Keyword(1) | Contact current |
| Keyword(2) | Quasi-static FDTD method |
| Keyword(3) | in-situ electric field |
| Keyword(4) | Peak SAR |
| 1st Author's Name | Junya HATTORI |
| 1st Author's Affiliation | Nagoya Institute of Technology() |
| 2nd Author's Name | Kwok Hung CHAN |
| 2nd Author's Affiliation | Nagoya Institute of Technology |
| 3rd Author's Name | Ilkka LAAKSO |
| 3rd Author's Affiliation | Nagoya Institute of Technology |
| 4th Author's Name | Akimasa HIRATA |
| 4th Author's Affiliation | Nagoya Institute of Technology |
| 5th Author's Name | Masao TAKI |
| 5th Author's Affiliation | Tokyo Metropolitan University |
| Date | 2013-01-25 |
| Paper # | PN2012-76,OPE2012-185,LQE2012-177,EST2012-112,MWP2012-94 |
| Volume (vol) | vol.112 |
| Number (no) | 401 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |