The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 1986
Filed:
Oct. 07, 1981
Applicant:
Inventors:
Richard F Cahill, El Toro, CA (US);
Eric Udd, Huntington Beach, CA (US);
Assignee:
McDonnell Douglas Corporation, Long Beach, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01C / ;
U.S. Cl.
CPC ...
356350 ; 350358 ; 350 9615 ;
Abstract
An improved compact optical gyro is provided wherein a beam of light is split and introduced into both ends of an optic coil whose rotation is to be sensed. At least one frequency shifter is placed to affect the frequency of the beam to introduce or adjust a nonreciprocal phase shift. The beams are then mixed back together and the resultant beam is detected and analyzed by suitable circuitry to provide an output indicative of the rotation of the light path.