Apparatus for measuring weak magnetic fields having a DC-SQUID a

Details Apparatus for measuring weak magnetic fields having a DC-SQUID a Apparatus for measuring weak magnetic fields having a DC-SQUID a

1986-04-22

1988-08-02

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Magnetometers

307306, G01R 33035

Patent

active

047616113

ABSTRACT:
Apparatus comprising a gradiometer array having a plurality of gradiometers, with which at least one SQUID array having a multiplicity of DC-SQUIDs is associated therewith forms, with the respective coupling coils, modulation coils and superconducting shielding rings serving for the magnetic decoupling, a thin-film structure. Furthermore, metallic coupling by ground planes is provided for at least part of the common leads. By the metallic coupling and magnetic decoupling of the parallel measuring channels, a simple embodiment with few contacts is obtained which makes possible parallel signal processing without crosstalk.

REFERENCES:
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patent: 4588947 (1986-05-01), Ketchen
Goodman et al, "Superconducting Instrument Systems", Proceedings of the IEEE, Jan. 1973, vol. 61, No. 1, pp. 20-27.
Bickford et al, "Flexible I/O Cable to Thin Film Connector", IBM Technical Disclosure Bulletin, vol. 25, No. 36, 8/1982, pp. 1701-1702.
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Physicia, vol. 107B, 1981, pp. 29 and 30.
SQUID '80, W. D. Gruyter and Co., Berlin-New York, May 1980, pp. 399-415.

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