2017年5月1日
Absolute-magnetic-field measurement using nanogranular in-gap magnetic sensor with second-harmonic and liquid-nitrogen-temperature operation
AIP Advances
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- 巻
- 7
- 号
- 5
- 開始ページ
- 1257
- 終了ページ
- 1264
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1063/1.4978217
- 出版者・発行元
- AMER INST PHYSICS
© 2017 Author(s). To detect the absolute magnetic field, such as the earth’s magnetic field, a linear magnetic response, a zero point, and thermal stability are required. We thus propose an operating method and sensor probe consisting of a nanogranular in-gap magnetic sensor (GIGS), an operational amplifier integrated circuit, and a modulation coil. The sensor probe was operated in second-harmonic mode at a liquid-nitrogen (Liq. N2) temperature. When an AC magnetic field was applied to GIGS, the second-harmonic signal was generated and modulated by the outer magnetic field to be measured. After lock-in detection, the modulated output signal showed good linearity and a zero point. Moreover, higher sensitivity and low noise with low thermal fluctuation was obtained by the cooling at Liq. N2 temperature.
- リンク情報
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- DOI
- https://doi.org/10.1063/1.4978217
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000402797100391&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85014557325&origin=inward 本文へのリンクあり
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85014557325&origin=inward
- ID情報
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- DOI : 10.1063/1.4978217
- ISSN : 2158-3226
- eISSN : 2158-3226
- SCOPUS ID : 85014557325
- Web of Science ID : WOS:000402797100391