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:
Aug. 14, 2012
Filed:
Jul. 26, 2011
James K. Andersen, Westlake Village, CA (US);
Eric Lee Goldner, Chatsworth, CA (US);
Leo Lam, Chatsworth, CA (US);
William Morey, Chatsworth, CA (US);
Ira Jeffrey Bush, Chatsworth, CA (US);
Gerald Baker, West Hills, CA (US);
Agop Cherbettchian, Santa Monica, CA (US);
James K. Andersen, Westlake Village, CA (US);
Eric Lee Goldner, Chatsworth, CA (US);
Leo Lam, Chatsworth, CA (US);
William Morey, Chatsworth, CA (US);
Ira Jeffrey Bush, Chatsworth, CA (US);
Gerald Baker, West Hills, CA (US);
Agop Cherbettchian, Santa Monica, CA (US);
US Seismic Systems, Inc., Chatsworth, CA (US);
Abstract
An optical sensor in which acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output. The sensor can be coupled to a high-speed interferometric interrogator through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator. A method of measuring acceleration uses the sensor.