Electricity: measuring and testing – Magnetic – Displacement
Reexamination Certificate
2007-05-22
2007-05-22
Lefkowitz, Edward (Department: 2862)
Electricity: measuring and testing
Magnetic
Displacement
C324S207200, C324S207210, C324S207250
Reexamination Certificate
active
10603462
ABSTRACT:
A sensor apparatus and method that can measure either a linear position or an angular position of a device. A linear array of galvanomagnetic sensing elements is fixedly mountable adjacent the device. A target is connectable to the device such that the target moves adjacent a surface of the linear array in response to movement of the device and is shaped so that a magnetic flux density curve resulting from excitation of the sensing elements includes a peak and/or a valley. A first circuit excites each of the sensing elements, and a second circuit measures a magnetic flux density value at each of the sensing elements. A maximum and/or a minimum of the flux density curve indicates the position of the device.
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Guerra Jose Alberto
Heremans Joseph Pierre
Partin Dale L.
Schroeder Thaddeus
Delphi Technologies Inc.
Lefkowitz Edward
Marshall Paul L.
Whittington Kenneth J.
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