Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1986-04-22
1987-10-13
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Magnetometers
324260, 336DIG1, G01R 33022, G01R 33035
Patent
active
047001356
ABSTRACT:
The gradiometers are arranged with their associated SQUIDs in a double-wall Dewar vessel which is equipped with a narrow neck. A gradiometer array is provided with a multiplicity of individually mountable gradiometers, the detector coils of which are arranged side-by-side. The radiometers are connected via a superconducting plug connection to a SQUID array of DC-SQUIDs which is designed with a measuring head and a multiple connector as a plug-in module. The multiple connector can be inserted with the SQUID array through the neck of the Dewar vessel and can be plugged into a mating plug-in device which is associated with the gradiometer array and is fastened by a mounting device to the bottom of the Dewar vessel. In this embodiment of the apparatus, for instance, a plane gradiometer array for magnetocardiography can be exchanged for a curved gradiometer array for magnetoencephalography.
REFERENCES:
patent: 3962628 (1976-06-01), Rein
patent: 3965411 (1976-06-01), Hesterman
patent: 4349781 (1982-09-01), Vozoff
IEEE Trans Mag., vol. MAG-11, No. 2, 3/2/75, pp. 778-781.
Cryogenics, vol. 23, (1983) No. 5, pp. 263-264.
Physica 107B (1981) pp. 29, 30.
Rev. Sci. Instrum. 53 (12) Dec. 1982, pp. 1815-1845.
Siemens Aktiengesellschaft
Strecker Gerard R.
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