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:
Sep. 02, 2014
Filed:
Feb. 10, 2011
Evangelos V. Diatzikis, Chuluota, FL (US);
Michael Twerdochlib, Oviedo, FL (US);
Luis Alberto DE Almeida Ferreira, Vila Nova de Gaia, PT;
Francisco Manuel Moita Araújo, Matosinhos, PT;
Evangelos V. Diatzikis, Chuluota, FL (US);
Michael Twerdochlib, Oviedo, FL (US);
Luis Alberto de Almeida Ferreira, Vila Nova de Gaia, PT;
Francisco Manuel Moita Araújo, Matosinhos, PT;
Siemens Energy, Inc., Orlando, FL (US);
Abstract
A sensor includes a housing adapted to be secured to a component within a system to be monitored by the sensor, an optical fiber, and a membrane spring assembly. The optical fiber includes a sensing portion containing a fiber Bragg grating that is able to undergo expansion and contraction resulting from movement of the optical fiber at a second location relative to a first location. The membrane spring assembly includes a membrane disc, wherein movement of a central portion thereof causes corresponding displacement of the optical fiber at the second location to cause expansion and contraction of the sensing portion of the optical fiber containing the fiber Bragg grating, which expansion and contraction effects a change in a light wavelength reflected by the fiber Bragg grating. The light wavelength reflected by the fiber Bragg grating can be used to measure movement of the central portion of the membrane disc.