Research/Patents/US 4653918
US 4653918

LOW Q BODY-DITHERED LASER GYRO ASSEMBLY

Assignee

SUNDSTRAND CORPORATION A CORP. OF DE

Filed

May 20, 1983

Granted

Mar 31, 1987

Location

THOUSAND OAKS CA US

Abstract

A low Q ring laser gyro-dither motor assembly which is responsive to a wide range of frequency components of a drive signal having a randomly varying frequency such that the dither imparted to the gyro is frequency modulated by the drive. The frequency modulated dither varies the lock-in rate of the gyro as a function of the random drive signal to eliminate errors in the gyro output due to lock-in. The drive signal may be random in frequency only or random in both frequency and amplitude to provide the frequency modulation. Fixed frequency modulation may also be employed. The low Q assembly need not be driven at the natural frequency thereof so that a common drive circuit may be employed for a plurality of low Q gyro-dither motor assemblies forming an instrument cluster.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Apr 2, 1985

Rescinded

Jul 31, 1985

Duration

4 months

Inventor

  • 1DARYL C. STJERN

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records