Study on ELF Magnetic Field Characterization

ELF磁场表征研究

• 批准号: 05650276
• 负责人: HAYASHI Noriyuki
• 金额: $ 1.54万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650276/
• 关键词: ELF Magnetic Field; Dosimetry; Portable Meter; Bio-effect; ECC; Magnetic Field Monitoring; 固体電位記憶素子; 商用電力周波数; 磁界ドシメータ; 磁界メータ; ドシメトリ; ELF

The following research was conducted during 1993 to 1994, and the following results are obtained.1 : A Helmholtz-type magnetic field generator was installed, which can produce the 3-phase magnetic field of different magnitudes and phase angles to each other. The magnetic field has the magnitude of 0.01-30 micro tesla and the frequency of 40-500 heltz.2 : A portable tri-axis dosimeter, that can integrate the magnetic flux density as a function of time, is designed and manufactured. This meter is easy-to-operate and easy-to-carry to conduct a continuos dosimetry of the magnetic field exposure.3 : Three-dimensional magnetic field measuring system is designed and manufactured. The system is computer-aided so that several kinds of measurements are possible by using this instrument.4 : Performance of the present dosimeter is now under investigation utilizing the three phase magnetic field generated in the experimental room and under the power transmission lines.In the present investigation, the dosimeter and three-dimensional magnetic field measuring system is almost completed. Actual measurement of elf magnetic field in working areas and homes can be conduced in future by using those meters developed.

1993年至1994年进行了以下研究，并获得了以下结果：1：安装了一个亥姆霍兹型磁场发生器，它可以产生不同大小和相位角的三相磁场。磁场的大小为0.01-30微特斯拉和频率为40-500赫兹。2：便携式三轴剂量计，可以集成作为时间的函数的磁通量密度，设计和制造。该仪器操作简单，便于携带，可进行连续的磁场剂量测量。3、设计并制作了三维磁场测量系统。该系统是计算机辅助的，使几种测量是可能的，通过使用该仪器。4：本剂量计的性能，现在正在调查利用产生的三相磁场在实验室和电力传输线。在目前的调查中，剂量计和三维磁场测量系统已接近完成。利用所研制的极低频磁场测量仪，今后可对工作场所和家庭进行实际测量。

项目成果

N.Hayashi: "Numerical Calculation of Induced Field and Current Density Using Impedance Method" Proc.9-th ISH. (In Press). (1995)

N.Hayashi：“使用阻抗法对感应场和电流密度进行数值计算”Proc.9-th ISH。

林 則行: "商用周波数平等磁界中に置かれた金属平板周辺の磁束密度分布" 電気設備学会誌. 13. 1028-1040 (1993)

Noriyuki Hayashi：“置于商用频率均匀磁场中的平板金属板周围的磁通密度分布”，日本电气工程师学会杂志，13. 1028-1040 (1993)。

N.Hayashi: "Magnetic Field Profiles near Metal objects Modeling Substation Structure" Proc.8-th ISH. 1. 513-516 (1993)

N.Hayashi：“金属物体附近的磁场剖面建模变电站结构”Proc.8-th ISH。

K.Isaka: "Characteristics of Power Line Electric and Magnetic Fields" Proc.Int′l Symp.EMC. 1. 159-163 (1994)

K.Isaka：“电力线电场和磁场的特性”Proc.Intl Symp.EMC。1. 159-163 (1994)

K.Isaka: "Measurements of Electric and Magnetic Fields and Analysis of Induced Current Density in Human Model Exposed to Those Fields" Proc.1994 Japan-U.S.Science Seminar. 1(In Press). (1995)

K.Isaka：“电场和磁场的测量以及暴露于这些场的人体模型中感应电流密度的分析”Proc.1994 日本-美国科学研讨会。