Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Reexamination Certificate
2006-01-31
2006-01-31
Patidar, Jay (Department: 2862)
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
C324S232000, C324S248000, C324S240000
Reexamination Certificate
active
06992482
ABSTRACT:
Magnetic field sensor probes are disclosed which comprise primary or drive windings having a plurality of current carrying segments. The relative magnitude and direction of current in each segment are adjusted so that the resulting interrogating magnetic field follows a desired spatial distribution. By changing the current in each segment, more than one spatial distribution for the magnetic field can be imposed within the same sensor footprint. Example envelopes for the current distributions approximate a sinusoid in Cartesian coordinates or a first-order Bessel function in polar coordinates. One or more sensing elements are used to determine the response of a test material to the magnetic field. These sense elements can be configured into linear or circumferential arrays.
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Goldfine Neil J.
Schlicker Darrell E.
Shay Ian
Washabaugh Andrew P.
Hamilton Brook Smith & Reynolds PC
Jentek Sensors, Inc.
Patidar Jay
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