First Derivative High-Tc SQUID Gradiometers with Narrow Structure from Single Layer YBCO Thin Film(<特集>Special Issue on Superconductive Electronics)
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概要
- 論文の詳細を見る
We have fabricated and characterized two types of high-Tc planar SQUID gradiometers having different line width of pickup ioops. The device worked in flux-locked loop (FLL) operation even in laboratory environment without any shielding. A magnetic field gradient resolution of a parallel-type device in a lightly shielded room was about 0.5 pT/cmHz^<1/2> at 1 kHz and 2 pT/cmHz^<1/2> at 1 Hz. The device was possible to record magnetocardiograms in a shielded room. QRS-complex peaks of about 10 pTpp/4mm are clearly observed. For a mesh- type device, the increase of low frequency noise in the open laboratory environment was less than that for a parallel-type.
- 社団法人電子情報通信学会の論文
- 2002-03-01
著者
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OYAMA Hiroshi
Research Institute for Electronic Science, Hokkaido University
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HAYASHI Amane
Research Institute for Electronic Science, Hokkaido University
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MATSUDA Mizushi
Muroran Institute of Technology
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Hirano Satoru
Research Institute For Electronic Science Hokkaido University:(present Adress)superconductivity Rese
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Oyama Hiroshi
Research Institute For Electronic Science Hokkaido University
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Matsuda M
Ntt Corp. Yokosuka‐shi Jpn
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Kuriki S
Research Institute For Electronic Science Hokkaido University
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MATSUURA Tsutomu
Muroran Institute of Technology
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KATO koichi
Muroran Institute of Technology
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HAYASHI Amane
Science, Hokkaido University
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HIRANO Satoru
Science, Hokkaido University
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KURIKI Shinya
Science, Hokkaido University
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Hirano S
Superconductivity Research Laboratory International Superconductivity Technology Center
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Kato Koichi
Department Of Biology Graduate School Of Natural Sciences Nagoya City University
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