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Mechanical oscillator control electronics

  • US 7,443,257 B2
  • Filed: 04/26/2005
  • Issued: 10/28/2008
  • Est. Priority Date: 04/26/2005
  • Status: Active Grant
First Claim
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1. A mechanical oscillator control system comprising:

  • a first phase locked loop connected to a mechanical oscillator pick off; and

    a second phase locked loop connected to an output of the first phase locked loop;

    wherein the second phase locked loop may output a sinusoidal wave signal having a fractional multiple frequency of a signal from the mechanical oscillator motor pick off;

    a demodulator connected to a mechanical oscillator sense pick off; and

    a switch connected to an output of the second phase locked loop and to a drive input of the mechanical oscillator.

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