Integrated gradiometer with large β SQUID

K. Yoshida; S. Kohjiro; K. Enpuku; K. Yamafuji

doi:10.1109/TMAG.1987.1065145

Integrated gradiometer with large β SQUID

K. Yoshida, S. Kohjiro, K. Enpuku, K. Yamafuji

Superconductive Systems Engineering Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

An integrated thin-film dc SQUID gradiometer utilizing large β SQUIDs is designed. A damping resistance in shunt with a SQUID inductance is introduced in order to improve the performance of large β SQUIDs. Usefulness of the damping resistance is verified both theoretically and experimentally, so that we can use large β SQUIDs without significant degradation of performance. Large β SQUIDs simplify a configuration of the coupling section between an input coil and the SQUID, and will be a useful method to realize both an efficient magnetic coupling and a high balance of the gradiometer.

Original language	English
Pages (from-to)	1106-1109
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	23
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.1987.1065145
Publication status	Published - Mar 1987

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.1987.1065145

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author = "K. Yoshida and S. Kohjiro and K. Enpuku and K. Yamafuji",

year = "1987",

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doi = "10.1109/TMAG.1987.1065145",

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journal = "IEEE Transactions on Magnetics",

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AU - Kohjiro, S.

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AU - Yamafuji, K.

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AB - An integrated thin-film dc SQUID gradiometer utilizing large β SQUIDs is designed. A damping resistance in shunt with a SQUID inductance is introduced in order to improve the performance of large β SQUIDs. Usefulness of the damping resistance is verified both theoretically and experimentally, so that we can use large β SQUIDs without significant degradation of performance. Large β SQUIDs simplify a configuration of the coupling section between an input coil and the SQUID, and will be a useful method to realize both an efficient magnetic coupling and a high balance of the gradiometer.

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Integrated gradiometer with large β SQUID

Abstract

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