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Contact displacement detector and sensor

  • US 20030006761A1
  • Filed: 05/31/2002
  • Published: 01/09/2003
  • Est. Priority Date: 06/01/2001
  • Status: Active Grant
First Claim
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1. A circuit for a displacement detector having a sensor incorporating a differential transformer, said circuit comprising:

  • driver means for generating a driving signal for driving said differential transformer;

    standard signal processing means for processing said driving signal and thereby outputting a standard signal;

    output signal processing means for processing signals outputted from said differential transformer;

    differential amplifier means for carrying out differential amplification of said standard signal and the output signal from said output signal processing means; and

    amplitude adjusting means for adjusting the amplitude of said driving signal to a constant value by feeding back said standard signal to said driver means.

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