Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1994-09-26
1997-02-04
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Magnetometers
324244, 324260, 505846, G01R 3302, G01R 33035
Patent
active
056002424
ABSTRACT:
A magnetic field sensor which can be used as an active antenna is disclosed that is capable of small size, ultrawideband operation, and high efficiency. The sensor includes a multiplicity of magnetic field transducers, e.g., superconducting quantum interference devices (SQUIDs) that are electrically coupled in a serial array. Dummy SQUIDs may be used about the perimeter of the array, and electrically coupled to the active SQUIDs for eliminating the edge effects on the active SQUIDs. A magnetic flux transformer may be used in combination with a feedback assembly for increasing the sensitivity and linear dynamic range of the active antenna.
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Hammar John C.
Strecker Gerard R.
The Boeing Company
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