Circuit for compensating for time variation of temperature in an inductive sensor
2 Assignments
0 Petitions
Accused Products
Abstract
A sensing device includes a circuit that compensates for time and spatial changes in temperature. The circuit includes elements to correct for variation in permeability of a highly permeable core of a differential variable reluctance transducer as temperature changes. The circuit also provides correction for temperature gradients across coils of the transducer.
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Citations
53 Claims
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1-35. -35. (canceled)
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36. An electronic device for sensing at least one parameter, comprising:
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a first circuit element comprising a reactance and a resistance, said first circuit element comprising input terminals and output terminals;
said input terminals for providing a first input signal and a second input signal different from said first signal to said first circuit element;
said output terminals for providing a first output signal and a second output signal from said first circuit element;
a second circuit element connected to said output terminals to use said first output signal and said second output signal, wherein said second circuit element generates a first parameter that depends exclusively on said resistance and a second parameter that depends exclusively on said reactance; and
a third circuit element connected to said second circuit element wherein said third circuit element compensates gain of said second parameter for changes in said first parameter. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53-57. -57. (canceled)
Specification