Presentation 2022-12-07
A Study on Relative Permittivity Estimation for Human Body Using Two-Dimensional Electric Field Approximation
Takuro Saji, Daisuke Anzai,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, there has been a growing demand for a simple and accurate method to estimate the moisture content of the human body for the prevention of heat stroke in hot and humid environments and for setting dry weights for chronic dialysis patients. Therefore, we focus on a body water content estimation method based on relative permittivity estimation by using radio waves, which is less affected by sweat on the human body surface than conventional impedance-based methods. In this study, we aimed to improve the accuracy of relative permittivity estimation by two-dimensional electric field approximation using the Hankel function. The superiority of the two-dimensional electric field approximation was demonstrated based on perfromance comaprison with one-dimensional electric field estimation with the plane wave propagation.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Relative permittivity estimation / Hankel function / Body water content estimation
Paper # EMCJ2022-70
Date of Issue 2022-11-30 (EMCJ)

Conference Information
Committee EMCJ / IEE-EMC / IEE-SPC
Conference Date 2022/12/7(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Atsuhiro Nishikata(Tokyo Inst. of Tech.) / Toshio Ushio(大阪大学) / Junichi Ito(長岡技術科学大学)
Vice Chair Kimihiro Tajima(NTT-AT) / / Akihiro Odaka(富士電機)
Secretary Kimihiro Tajima(Hokkaido Univ.) / (Hitachi) / Akihiro Odaka(大阪大学)
Assistant Kiyoto Matsushima(Hitachi) / Kenji Ogata(ADOX) / Toru Matsushima(Kyushu Inst. of Tech.) / Takeo Shiina(電力中央研究所) / Keisuke Kusaka(長岡技術科学大学) / Hiroshi Takami(芝浦工業大学)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility / Technical Meeting on Electromagnetic Compatibility / Technical Meeting on Semiconductor Power Converter
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Relative Permittivity Estimation for Human Body Using Two-Dimensional Electric Field Approximation
Sub Title (in English)
Keyword(1) Relative permittivity estimation
Keyword(2) Hankel function
Keyword(3) Body water content estimation
1st Author's Name Takuro Saji
1st Author's Affiliation Nagoya Institute of Technology(NIT)
2nd Author's Name Daisuke Anzai
2nd Author's Affiliation Nagoya Institute of Technology(NIT)
Date 2022-12-07
Paper # EMCJ2022-70
Volume (vol) vol.122
Number (no) EMCJ-296
Page pp.pp.39-43(EMCJ),
#Pages 5
Date of Issue 2022-11-30 (EMCJ)