B.sub.zz and B.sub.yz sense loop geometries for cylindrical tens

Details B.sub.zz and B.sub.yz sense loop geometries for cylindrical tens B.sub.zz and B.sub.yz sense loop geometries for cylindrical tens

1983-12-08

1986-05-20

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Magnetometers

29599, 29847, 307306, 324260, 335213, 335216, 335219, 336208, 336DIG1, G01R 3302

Patent

active

045904260

ABSTRACT:
Each of two sensor loop patterns on a cylindrical substrate produces one of, specifically B.sub.zz and B.sub.yz, of the five independent magnetic tensor gradiometer outputs as pure terms, meaning respectively dependent only upon g.sub.zz and g.sub.yz, with no admixture of other gradient terms, specifically without admixture of g.sub.xx. Such magnetic tensor gradiometer outputs are received at a current sensor device, nominally a superconducting quantum interference device (SQUID). Each of the two sensor loop patterns is of ten segments, and is a continuous closed-loop superconducting path save only for the single break point at which the current sensor device is coupled.

REFERENCES:
patent: 3011247 (1961-12-01), Hanlet
patent: 3515979 (1970-06-01), Golay
patent: 3522568 (1970-08-01), Hasbrouck
patent: 3587019 (1971-06-01), Bull
patent: 3772587 (1973-11-01), Farrand et al.
patent: 4231008 (1980-10-01), Krueger
patent: 4280095 (1981-07-01), Hinton
patent: 4320341 (1982-03-01), Lutes
Wynn et al., "Advanced Superconducting Gradiometer/Magnetometer Arrays and a Novel Signal Processing Technique", IEEE Trans. on Mag., vol. MAG-11, No. 2, Mar. 1975, pp. 701-707.
Bull, "Printed Scanning Coils", Wireless World, Aug. 1968, pp. 260-262.

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