Faculty Profiles - TOYOTA Yoshitaka

MISC - TOYOTA Yoshitaka

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Improvement of Noise Source Amplitude Modulation Method to Identify Source Devices of Electromagnetic Interference

117 ( 319 ) 35 - 40 2017.11

Crosstalk Suppression in Differential Transmission Lines with Periodic Structure

117 ( 1 ) 23 - 28 2017.4

Parameter Identification of a Noise-source Linear Equivalent Circuit of DC-DC Converter

117 ( 1 ) 29 - 34 2017.4

アルカリ金属を用いた交流磁界の光学検出―市販の磁界テスタとの比較と永久磁石を用いたプローブ化の検討―

田上周路, 篠原優, 豊田啓孝, 藤森和博, 深野秀樹

電子情報通信学会論文誌 B(Web) J100-B ( 3 ) 158‐165 (WEB ONLY) - 165 2017.3

Language：Japanese

We investigate the optical magnetometer for AC magnetic fields at several tens of kilohertz. The sensor requires a DC magnetic field to enhance its sensitivity. In this study, at first, we calibrated the signal response of the sensor using coils. The linear response for applied an AC field was obtained, and its sensitivity was 0.4 nT at 20 kHz. Subsequently, signal responses are investigated for comparison with using permanent magnets applying a DC field. The signal intensity was slightly decreased to about 81% by using magnets. These results suggest the possibility of miniaturization and metal-free configuration of the optical magnetometer.

DOI： 10.14923/transcomj.2016pep0010

J-GLOBAL

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Evaluation of Unintended electromagnetic radiation from Myoelectric Artificial Hand

116 ( 399 ) 15 - 18 2017.1

AC Magnetic Field Imaging by using Digital Micro-mirror Device Reviewed

Taue, Shuji, Toyota, Yoshitaka, Fujimori, Kazuhiro, Fukano, Hideki

2017 22ND MICROOPTICS CONFERENCE (MOC) 2017-November 212 - 213 2017

Language：English Publisher：IEEE

We demonstrated optical imagings of AC magnetic fields. A digital micro-mirror device and a lock-in detection allowed obtaining sub-millimeter resolution images without using magnetic shields. Images of gradient field from a wire suggested its potential to apply for signal-source estimations.

DOI： 10.23919/MOC.2017.8244562

Web of Science

Scopus

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損失を有する共振器型フィルタの設置位置による電源層間ノイズ抑制効果の評価と考察

金尾奨, 五百旗頭健吾, 豊田啓孝

電気・情報関連学会中国支部連合大会講演論文集(CD-ROM) 68th 2017