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Paper Abstract and Keywords
Presentation 2013-01-24 13:35
Development of HTS-SQUID hybrid magnetometer
Akira Tsukamoto, Seiji Adachi, Yasuo Oshikubo, Tsunehiro Hato, Keiichi Tanabe (ISTEC-SRL) SCE2012-33 Link to ES Tech. Rep. Archives: SCE2012-33
Abstract (in Japanese) (See Japanese page) 
(in English) To improve the field resolution of a magnetometer for use in the Earth’s field, we have developed a new magnetometer using a hybrid SQUID. A multi-turn input coil (Ni turns) is inserted between a directly-coupled SQUID and a pickup coil in series in the hybrid SQUID. Screening current couples with the SQUID by both direct current injection and magnetic coupling. There is an optimal Ni as a result of the tread-off relationship between the increase of the coupling strength and the decrease of the screening current with increasing Ni. The magnetometer using the hybrid SQUID with a slit hole inductor showed an effective areas of 0.45 mm2 at the optimal Ni of 3. Although many peaks from environmental noise sources appear in the noise spectrum measured in the Earth's field, the bottom of the noise level agrees well with that measured in MSR, indicating no flux trapping after cooling in the Earth's field.
Keyword (in Japanese) (See Japanese page) 
(in English) SQUID / High-Tc superconductor / Flux trapping / Effective area / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 408, SCE2012-33, pp. 49-52, Jan. 2013.
Paper # SCE2012-33 
Date of Issue 2013-01-17 (SCE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Download PDF SCE2012-33 Link to ES Tech. Rep. Archives: SCE2012-33

Conference Information
Committee SCE  
Conference Date 2013-01-24 - 2013-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Okayama Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Superconducting sensing technologies and their applications, etc. 
Paper Information
Registration To SCE 
Conference Code 2013-01-SCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of HTS-SQUID hybrid magnetometer 
Sub Title (in English)  
Keyword(1) SQUID  
Keyword(2) High-Tc superconductor  
Keyword(3) Flux trapping  
Keyword(4) Effective area  
1st Author's Name Akira Tsukamoto  
1st Author's Affiliation Superconductivity Res. Lab. (ISTEC-SRL)
2nd Author's Name Seiji Adachi  
2nd Author's Affiliation Superconductivity Res. Lab. (ISTEC-SRL)
3rd Author's Name Yasuo Oshikubo  
3rd Author's Affiliation Superconductivity Res. Lab. (ISTEC-SRL)
4th Author's Name Tsunehiro Hato  
4th Author's Affiliation Superconductivity Res. Lab. (ISTEC-SRL)
5th Author's Name Keiichi Tanabe  
5th Author's Affiliation Superconductivity Res. Lab. (ISTEC-SRL)
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Date Time 2013-01-24 13:35:00 
Presentation Time 25 
Registration for SCE 
Paper # IEICE-SCE2012-33 
Volume (vol) IEICE-112 
Number (no) no.408 
Page pp.49-52 
#Pages IEICE-4 
Date of Issue IEICE-SCE-2013-01-17 

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