Presentation 2022-06-10
Imaging of AC magnetic field distribution using an optical magnetometer
Shuji Taue, Takumi Tanaka, Yoshitaka Toyota,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Near-field wireless transfer with inductive coupling is widely used for charging mobile devices. Spatial evaluations of electromagnetic field distribution are valuable method to improve transfer efficiency. In this study, we obtain magnetic field distributions by combining optical magnetometer and a mirror-array device and demonstrate imaging of magnetic field generated from an induction coil. A 200 turns coil receives 70 kHz magnetic field transmitted by one-turn Helmholtz coil. We considered about characteristics of receiver circuit by detected magnetic field generated from an induced current.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optically pumped magnetometer / Digital micro-mirror device / Magnetic field distribution / Electromagnetic induction
Paper # EMCJ2022-26
Date of Issue 2022-06-03 (EMCJ)

Conference Information
Committee EMCJ
Conference Date 2022/6/10(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Hokkaido University
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Atsuhiro Nishikata(Tokyo Inst. of Tech.)
Vice Chair Kimihiro Tajima(NTT-AT)
Secretary Kimihiro Tajima(NAIST)
Assistant Kiyoto Matsushima(Hitachi) / Hiroyoshi Shida(EMC Tech.) / Toru Matsushima(Kyushu Inst. of Tech.)

Paper Information
Registration To Technical Committee on Electromagnetic Compatibility
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Imaging of AC magnetic field distribution using an optical magnetometer
Sub Title (in English) Magnetic field measurement generated form an induction coil
Keyword(1) Optically pumped magnetometer
Keyword(2) Digital micro-mirror device
Keyword(3) Magnetic field distribution
Keyword(4) Electromagnetic induction
1st Author's Name Shuji Taue
1st Author's Affiliation Kochi University of Technology(Kochi Tech.)
2nd Author's Name Takumi Tanaka
2nd Author's Affiliation Kochi University of Technology(Kochi Tech.)
3rd Author's Name Yoshitaka Toyota
3rd Author's Affiliation Okayama University(Okayama Univ.)
Date 2022-06-10
Paper # EMCJ2022-26
Volume (vol) vol.122
Number (no) EMCJ-67
Page pp.pp.57-62(EMCJ),
#Pages 6
Date of Issue 2022-06-03 (EMCJ)