300m optic fiber Bragg grating temperature sensing system for seawater measurement

  • Li X
  • Li Y
  • Wen Z
  • 3

    Readers

    Mendeley users who have this article in their library.
  • 5

    Citations

    Citations of this article.

Abstract

Optic fiber grating sensor is a research hotspot.It has been used on many occasions,and how to use it for ocean detection is a new research directions. The paper introduced the calibration work of FBG temperature sensors. It confirmed that from being armored package,the sensors can eliminate the water pressure effect. From the calibration experiment and data processing,60 sensors has little error were screened out for experiment. 300m long optic fiber Bragg grating sensor array was designed.The marine experiments were achived in South China Sea with 300 meters long Bragg grating array and got the seawater profile temperature. Proposed the curve fitting method to process the data based on Levenberg-Marquardt algorithm.By curve fitting to the data acquired,the precision was better than 0.2°C, which verified the effectiveness of the method.This result has practical value.

Author-supplied keywords

  • calibration experiment
  • curve fitting
  • optic fiber grating
  • sensing system

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Xingrong Li

  • Yongqian Li

  • Zhengyang Wen

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free