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Multiplexed fiberoptic gyro control

  • US 5,033,854 A
  • Filed: 12/06/1989
  • Issued: 07/23/1991
  • Est. Priority Date: 12/06/1989
  • Status: Expired due to Term
First Claim
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1. A method of controlling a plurality of fiberoptic gyros comprising:

  • connecting an undemodulated, non-integrated, preamplified electrical output of each of said gyros to a multiplexing means, said multiplexing means having an output at which an electrical signal from only one of said gyros appears;

    connecting said output of said multiplexing means to an input of a gyros controller;

    alternately switching, with said multiplexing means, from one gyro output to another in a predetermined sequence;

    operating on said electrical signal, after converting said electrical signal to a digital signal, from said one of said gyros with a digital processor to produce a modulation and rate feedback signal, and, optionally, an angular rate signal, an angle signal or both; and

    applying said modulation and rate feedback signal to an input of each of said gyros to drive a phase modulator included in each of said gyros.

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