Superconducting biomagnetometer with inductively coupled pickup coil
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United States of America Patent
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-
Oct 27, 1992
Issued Date -
N/A
app pub date -
Jul 17, 1990
filing date -
Jul 31, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A biomagnetometer has a magnetic pickup coil positioned remotely from a detector and inductively coupled to the detector. The detector is preferably made from a low-temperature superconductor, while the pickup coil can be made of a high-temperature superconductor. The detector and pickup coil can therefore be placed into separate containers, with an inductive coupler between the containers. In one approach, the detector is maintained at liquid helium temperature, and the pickup coil and electrical connector are cooled by liquid nitrogen. The resulting biomagnetometer permits the container with the pickup coil to be moved and positioned easily, and to be changed readily between various configurations particularly suited for performing various functions.
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