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. 10, 1988
Filed:
Oct. 07, 1985
Applicant:
Inventors:
Eric Udd, Huntington Beach, CA (US);
Philip M Gretzkowski, Irvine, CA (US);
Keith H Wanser, Huntington Beach, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
356350 ; 250227 ;
Abstract
There is provided by this invention a fiber optic transducer for accelerometers and gyroscopes that utilize microbending of an optical fiber between two suspended points by vibrating the optical fiber with electro-static deflection to induce modulation of a light signal to sense acceleration, tension, etc. The amplitude modulation of the light signal induced by the bending lost in the vibrating fiber is demodulated with respect to reference signals to derive an output proportional to acceleration, tension, or other environmental factors.