发明名称 |
Optical sensor device having creep-resistant optical fiber attachments |
摘要 |
A method and device for pressure sensing using an optical fiber having a core, a cladding and a Bragg grating imparted in the core for at least partially reflecting an optical signal at a characteristic wavelength. The cladding has two variation regions located on opposite sides of the Bragg grating to allow attachment mechanisms to be disposed against the optical fiber. The attachment mechanisms are mounted to a pressure sensitive structure so as to allow the characteristic wavelength to change according to pressure in an environment. In particular, the variation region has a diameter different from the cladding diameter, and the attachment mechanism comprises a ferrule including a front portion having a profile substantially corresponding to at least a portion of the diameter of the variation region and a butting mechanism which holds the ferrule against the optical fiber.
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申请公布号 |
US6768825(B2) |
申请公布日期 |
2004.07.27 |
申请号 |
US20010873978 |
申请日期 |
2001.06.01 |
申请人 |
WEATHERFORD/LAMB, INC. |
发明人 |
MARON ROBERT J.;DAIGLE GUY A.;DUNPHY JAMES R.;ENGEL THOMAS W.;GRUNBECK JOHN J.;FERNALD MARK R. |
分类号 |
G01D5/353;G01L1/24;G01L9/00;G01L11/02;G02B6/00;G02B6/02;G02B6/24;G02B6/255;G02B6/34;G02B6/36;G02B6/38;(IPC1-7):G02B6/00 |
主分类号 |
G01D5/353 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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