Asymmetric planar gradiometer for rejection of uniform ambient m

Details Asymmetric planar gradiometer for rejection of uniform ambient m Asymmetric planar gradiometer for rejection of uniform ambient m

1998-04-29

2000-11-28

Strecker, Gerard

Electricity: measuring and testing

Magnetic

Magnetometers

324225, 505162, 505846, G01R 33035

Patent

active

061540269

ABSTRACT:
An asymmetric planar gradiometer for use in making biomagnetic measurements. The gradiometer is formed from a magnetometer which is inductively-coupled to the smaller of two connected loops patterned in a superconducting film which form a flux transformer. The magnetometer is based on a SQUID formed from a high T.sub.c superconducting material. The flux transformer and magnetometer may be formed on separate substrates, allowing the baseline to be increased relative to presently available devices.

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