A Fiber Bragg Grating Temperature Sensor with High Pressure-Resistance Applied in Down-Hole

Abstract:

A fiber Bragg grating (FBG) temperature sensor with high pressure applied in down-hole is experimentally studied. The relationship between the central wavelength and the temperature and pressure of the fiber Bragg grating is derived. The experimental results show that the packaged FBG temperature sensor has improved linearity and good repeatability. Its linearity is more than 0.999. The good linearity of temperature and wavelength is also kept in the high pressure when the compression and decompression were carried out under the pressure of 0-20 MPa and temperatures of 0-100 °C. Besides, the structure is simple. It can be widely applied in down-hole and other occasions

• Periodical: Advanced Materials Research (Volume 894)
• Pages: 396-402
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.894.396
• Online since: February 2014
• Authors: Fei Ma, Fu Guo, Huan Zhou, Jun Wei, Wei Zhen
• Keywords: Down-Hole, Fiber Bragg Grating, Resistance High Pressure, Temperature Sensor

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