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:
Mar. 01, 2016
Filed:
Feb. 05, 2013
Gregory P. Carman, Los Angeles, CA (US);
Panduranga K. Mohanchandra, North Hills, CA (US);
Michael C. Emmons, Dublin, CA (US);
William Lance Richards, Palmdale, CA (US);
Gregory P. Carman, Los Angeles, CA (US);
Panduranga K. Mohanchandra, North Hills, CA (US);
Michael C. Emmons, Dublin, CA (US);
William Lance Richards, Palmdale, CA (US);
The United States of America, as Represented by the Adminstrator of NASA, Washington, unknown;
The Regents of the University of California, Oakland, CA (US);
Abstract
The invention is a magneto-optic coupled magnetic sensor that comprises a standard optical fiber Bragg grating system. The system includes an optical fiber with at least one Bragg grating therein. The optical fiber has at least an inner core and a cladding that surrounds the inner core. The optical fiber is part of an optical system that includes an interrogation device that provides a light wave through the optical fiber and a system to determine the change in the index of refraction of the optical fiber. The cladding of the optical fiber comprises at least a portion of which is made up of ferromagnetic particles so that the ferromagnetic particles are subject to the light wave provided by the interrogation system. When a magnetic field is present, the ferromagnetic particles change the optical properties of the sensor directly.