Multichannel device with superconductor gradiometers for measuring weak magnetic fields
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United States of America Patent
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Sep 13, 1988
Grant Date -
N/A
app pub date -
Jul 18, 1986
filing date -
Jul 22, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multichannel device for measuring weak, varying magnetic fields contains in each channel a gradiometer formed by superconducting loops on a planar carrier element; a superconducting direct current quantum interferometer (DC-SQUID) rigidly joined to the carrier element mechanically; and superconducting rigidly connecting links between the gradiometer and the interferometer, including a coupling-in coil. The active area of the gradiometer system is to be kept as small as possible and should approach the contour of a patient to be examined at the same time. Towards this end, several planar carrier elements fastened to one common carrier structure are provided, there being disposed on each carrier element the superconducting components such as the gradiometer, interferometer formed directly on the carrier element, and connecting links associated with at least one channel.
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