Investigation on contact current and human body impedance at low- and intermediate-frewuency

中低频接触电流与人体阻抗研究

• 批准号: 23560332
• 负责人: HAYASHI NORIYUKI
• 金额: $ 3.49万
• 依托单位: University of Miyazaki
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560332/
• 关键词: 人体防護; 低周波; 接触電流; 人体インピーダンス; ドシメトリ; 心臓電流; 電磁界; 中間周波; 電気の安全性; 人体詳細モデル; 数値解析; SPFD法; 体内電流分布; 中間周波数

Contact current and human body resistance calculated by using precise human model at power frequency showed good agreement with another numerical data. However, those are twice or three times higher than the experimental ones, ranging 550 to 800 ohms, measured for 26 volunteers with various ages (21-66 years old) and BMIs (16.1-41.4 kg/m2). It is found that R decreases as BMI increases, and that the measured profiles of relative R along the current path are in good agreement with the numerical ones. The contact current around the heart concentrates to the lung and heart that have relatively high conductivity, and its direction strongly depends on the contact scenarios.

利用精确人体模型计算出的工频接触电流和人体电阻与另一种数值计算结果吻合较好。然而，这些是实验值的两倍或三倍，范围为550至800欧姆，测量了26名不同年龄（21-66岁）和BMI（16.1-41.4 kg/m2）的志愿者。研究发现，随着BMI的增加，R减小，并且测量的相对R沿着电流路径的分布与数值计算的结果吻合良好。心脏周围的接触电流集中到具有相对高导电性的肺和心脏，并且其方向强烈地依赖于接触场景。

项目成果

Calculation of contact currents in a human body in contact with a car in 60 Hz electric fields

计算 60 Hz 电场中人体与汽车接触的接触电流

• 发表时间: 2013
• 期刊: Proceedings of BioEM
• 作者: H. Tarao;N. Hayashi;L. Korpinen;T. Matsumoto;K. Isaka
• 通讯作者: K. Isaka

Numerical estimations of induced and contact currents in human body in contact with a car in 60 Hz electric fields

60 Hz 电场中人体与汽车接触的感应电流和接触电流的数值估计

• 发表时间: 2013
• 期刊: Proceedings of International High Voltage Engineering
• 作者: H. Tarao;N. Hayashi;L. Korpinen;T. Matsumoto;K. Isaka
• 通讯作者: K. Isaka

Characterization of Electric and Magnetic Fields

电场和磁场的表征

• 作者: Hidenori Akiyama;Makoto Inokuchi;Hidetoshi Ishizawa;Tatsuro Sakamoto;Tomohiro Furusato;Takashi Sakugawa;Sunao Katsuki;Gnapowski Sebastian;Masahiro Akiyama;H. Mori and H. Kakuta;Noriyuki Hayashi
• 通讯作者: Noriyuki Hayashi

Measurement of Human body Impedance in Low Frequency

低频人体阻抗测量

• 发表时间: 2013
• 期刊: Proc. 2013 CIGRE International Colloquium on Electric and Magnetic Fields at Extremely Low Frequency (EMF-ELF 2013)
• 作者: Y. Sakamoto;N. Hayashi;H. Tarao
• 通讯作者: H. Tarao

Preliminary Measurement of Human Body Impedances at Power Frequency-Dependency on BMI and Relative Distribution

工频人体阻抗的初步测量——BMI和相对分布的依赖性

• 发表时间: 2013
• 期刊: Proceedings of BioEM
• 作者: N. Hayashi;H. Tarao;Y. Iki;Y. Sakamoto
• 通讯作者: Y. Sakamoto