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Variable reluctance transducer processing circuit for providing an output unaffected by low frequency components

  • US 5,012,207 A
  • Filed: 10/04/1989
  • Issued: 04/30/1991
  • Est. Priority Date: 10/06/1988
  • Status: Expired due to Term
First Claim
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1. A circuit for processing an output signal from a variable reluctance transducer, the transducer output signal varying at high frequency but possibly including a low frequency component, the circuit comprising an input receiving said transducer output signal from the variable reluctance transducer (VR), and a comparing means having a first input receiving said transducer signal and a second input receiving said transducer signal via a low pass filter so that the comparing means provides an output representing the high frequency transducer signal and substantially unaffected by any said low frequency component therein, in which the comparing means comprises an integrator which integrates the difference between the signals applied to its two inputs.

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