Invention Grant
- Patent Title: Method and system for detecting dynamic strain
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Application No.: US15323937Application Date: 2014-07-04
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Publication No.: US10234345B2Publication Date: 2019-03-19
- Inventor: John Hull , Seyed Ehsan Jalilian
- Applicant: Hifi Engineering Inc.
- Applicant Address: CA Calgary, Alberta
- Assignee: Hifi Engineering Inc.
- Current Assignee: Hifi Engineering Inc.
- Current Assignee Address: CA Calgary, Alberta
- Agency: Klarquist Sparkman, LLP
- International Application: PCT/CA2014/050645 WO 20140704
- International Announcement: WO2016/000064 WO 20160107
- Main IPC: G01B9/02
- IPC: G01B9/02 ; G01L1/24 ; F17C13/02 ; F17D5/00 ; G02B6/02 ; E21B47/00 ; E21B47/12

Abstract:
A system and method for detecting dynamic strain of a housing. The system includes an optical fiber linearly affixed along a surface of a length of the housing and an interrogator comprising a laser source and a photodetector. The optical fiber comprises at least one pair of fiber Bragg gratings (FBGs) tuned to reflect substantially identical wavelengths with a segment of the optical fiber extending between the FBGs. The segment of the optical fiber is linearly affixed along the surface of the housing. The interrogator is configured to perform interferometry by shining laser light along the optical fiber and detecting light reflected by the FBGs. The interrogator outputs dynamic strain measurements based on interferometry performed on the reflected light.
Public/Granted literature
- US20170153155A1 METHOD AND SYSTEM FOR DETECTING DYNAMIC STRAIN Public/Granted day:2017-06-01
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