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:
Dec. 29, 2015
Filed:
Oct. 15, 2013
Applicants:
Gangbing Song, Pearland, TX (US);
Siu Chun Michael Ho, Sugar Land, TX (US);
Ren Liang, Dailan, CN;
Inventors:
Assignee:
UNIVERSITY OF HOUSTON, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/17 (2006.01); G01M 3/04 (2006.01);
U.S. Cl.
CPC ...
G01N 21/17 (2013.01); G01M 3/047 (2013.01); Y10T 29/49117 (2015.01);
Abstract
A fiber Bragg grating (FBG) sensor for detecting moisture may include a sensor housing, FBG cable, water-swellable bead(s), and retaining mechanism. The housing secures the FBG cable and water-swellable bead. The retaining mechanism, such as one or more wire(s), placed adjacent to the FBG cable may be utilized to minimize lateral displacement of the water-swellable bead(s). The water-swellable bead(s) may swell as they absorb water, thereby causing the FBG to be strained to allow the detection of liquid moisture.