Research on the temperature compensation technology of quasi-distributed fiber Bragg grating
| Autor: | Jun He, Yuliang Liu, Guangyu Zhang, Chuqiao Dong, Shaopeng Yang, Huijuan Dong |
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| Rok vydání: | 2014 |
| Předmět: |
PHOSFOS
Materials science business.industry Optical time-domain reflectometer Condensed Matter Physics Electronic Optical and Magnetic Materials Compensation (engineering) symbols.namesake Optics Fiber Bragg grating Hardware and Architecture Fiber optic sensor symbols Annulus (firestop) Electrical and Electronic Engineering Raman spectroscopy business Casing |
| Zdroj: | Microsystem Technologies. 20:1629-1633 |
| ISSN: | 1432-1858 0946-7076 |
| DOI: | 10.1007/s00542-014-2193-9 |
| Popis: | In this work, Raman optical time domain reflectometer (ROTDR) is used to eliminate the fiber Bragg grating (FBG) sensor's central wavelength shift caused by the temperature. Compared with traditional method, this method takes advantages of the cost and the reliability specially under the condition of the multi-spot FBG strain monitoring. A FBG sensor array has been set up to monitor the pressure and density of water sample, while the ROTDR is used for temperature compensation. The FBG sensor array will be amounted along the casing annulus of the whole well in the future. The indoor experiment has been carried out to demonstrate the proposed method efficient. |
| Databáze: | OpenAIRE |
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