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:
Nov. 27, 2007
Filed:
Mar. 10, 2005
Richard T. Jones, Hamden, CT (US);
Richard T. Jones, Hamden, CT (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
Methods and apparatuses that sense physical parameters, such as pressure and strain, using optical waveguide sensors are described. A light source emits light at a predetermined wavelength along an optical waveguide having a fiber Bragg grating optical sensing element. That sensing element reflects light in accord with a sloped shape function of reflected light amplitude verses wavelength. A receiver converts the reflected light into electrical signals and an analyzer then determines a physical parameter based on changes of amplitude of the reflected light. The analyzer also maintains the wavelength of the light such that the wavelength corresponds to a slope wavelength of the shape function.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile