AC magnetic properties of large volume of water - Susceptibility measurement in unshielded environment

Keiji Tsukada; Toshihiko Kiwa; Yuuki Masuda

doi:10.1143/JJAP.45.L1097

AC magnetic properties of large volume of water - Susceptibility measurement in unshielded environment

Keiji Tsukada, Toshihiko Kiwa, Yuuki Masuda

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

To investigate the effect of low-frequency magnetic-field exposure of a human body, the low-frequency AC magnetic property of a large volume of water was measured by low-frequency magnetic field exposure (from 50 Hz to 1.2 kHz). The results indicate that the AC magnetic property of water is due to diamagnetism in the low-frequency range. The phase between the main magnetic field and the generated magnetic field remained constant at about 180°. Results were not affected by conductivity or pH. Moreover, the magnetic-field strength from water showed a susceptibility frequency dependence proportional to the frequency above approximately 400 Hz. Because of the incremental effects of susceptibility, the magnetic field from water was measured using a conventional magnetic sensor (magnetic resistive; MR) in an unshielded environment.

Original language	English
Pages (from-to)	L1097-L1099
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	45
Issue number	41
DOIs	https://doi.org/10.1143/JJAP.45.L1097
Publication status	Published - Oct 25 2006

Keywords

AC magnetic property
Diamagnetism
Magnetic sensor
Susceptibility
Water

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1143/JJAP.45.L1097

Cite this

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abstract = "To investigate the effect of low-frequency magnetic-field exposure of a human body, the low-frequency AC magnetic property of a large volume of water was measured by low-frequency magnetic field exposure (from 50 Hz to 1.2 kHz). The results indicate that the AC magnetic property of water is due to diamagnetism in the low-frequency range. The phase between the main magnetic field and the generated magnetic field remained constant at about 180°. Results were not affected by conductivity or pH. Moreover, the magnetic-field strength from water showed a susceptibility frequency dependence proportional to the frequency above approximately 400 Hz. Because of the incremental effects of susceptibility, the magnetic field from water was measured using a conventional magnetic sensor (magnetic resistive; MR) in an unshielded environment.",

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AU - Tsukada, Keiji

AU - Kiwa, Toshihiko

AU - Masuda, Yuuki

PY - 2006/10/25

Y1 - 2006/10/25

N2 - To investigate the effect of low-frequency magnetic-field exposure of a human body, the low-frequency AC magnetic property of a large volume of water was measured by low-frequency magnetic field exposure (from 50 Hz to 1.2 kHz). The results indicate that the AC magnetic property of water is due to diamagnetism in the low-frequency range. The phase between the main magnetic field and the generated magnetic field remained constant at about 180°. Results were not affected by conductivity or pH. Moreover, the magnetic-field strength from water showed a susceptibility frequency dependence proportional to the frequency above approximately 400 Hz. Because of the incremental effects of susceptibility, the magnetic field from water was measured using a conventional magnetic sensor (magnetic resistive; MR) in an unshielded environment.

AB - To investigate the effect of low-frequency magnetic-field exposure of a human body, the low-frequency AC magnetic property of a large volume of water was measured by low-frequency magnetic field exposure (from 50 Hz to 1.2 kHz). The results indicate that the AC magnetic property of water is due to diamagnetism in the low-frequency range. The phase between the main magnetic field and the generated magnetic field remained constant at about 180°. Results were not affected by conductivity or pH. Moreover, the magnetic-field strength from water showed a susceptibility frequency dependence proportional to the frequency above approximately 400 Hz. Because of the incremental effects of susceptibility, the magnetic field from water was measured using a conventional magnetic sensor (magnetic resistive; MR) in an unshielded environment.

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AC magnetic properties of large volume of water - Susceptibility measurement in unshielded environment

Abstract

Keywords

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