07660496 is referenced by 6 patents and cites 14 patents.

Structural joint strain monitoring apparatus 92 comprises jacket means 52 in the form of first and second jacket elements 62, each having a primary jacket part 62a and substantially perpendicular secondary jacket part 62b which together define a compartment for receiving a joint, between two pipes 54, 56, to be monitored. The jacket means 52 additionally comprises two primary web elements 76, 78 provided between the primary and secondary jacket parts 62a, 62b. Three fiber Bragg grating (FBG) strain sensors 96, 98, 100 and an FBG temperature sensor 102 are provided within an optical fiber 104, bonded to the primary web elements 76, 78 and each end of the second jacket element 62 respectively, for measuring strain or temperature at their respective locations. The FBG sensors 96, 98, 100, 102 are optically coupled, via optical fiber 104, to optical fiber sensor interrogation apparatus 94, operable to interrogate each FBG sensor.

Title
Structural joint strain monitoring apparatus and system
Application Number
11/721083
Publication Number
7660496 (B2)
Application Date
November 30, 2005
Publication Date
February 9, 2010
Inventor
Richard Damon Goodman Roberts
Southampton Hampshire
GB
Agent
Vern Maine & Associates
Assignee
Schlumberger Technology Corporation
TX, US
IPC
G02B 6/44
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