Research/Patents/US 4641970
US 4641970

RING LASER LOCK-IN CORRECTION APPARATUS

Assignee

HONEYWELL INC., A CORP. OF DE

Filed

Sep 20, 1982

Granted

Feb 10, 1987

Location

MINNEAPOLIS MN US

Abstract

In the present application, an apparatus is provided for altering a ring laser angular rate sensor in such a way that the phase difference between the propagating waves therein includes lock-in error compensation. The apparatus of the present invention obtains a compensation output signal derived from the intensity of one or both of the propagating waves related to sensor lock-in error which can be utilized to alter the behavior of the ring laser so as to alter the behavior of the phase difference between the counter-propagating waves so that lock-in error contained therein is corrected.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 20, 1983

Rescinded

Jul 10, 1986

Duration

3 years, 1 month

Inventor

  • 1HARRY A. GUSTAFSON

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