High Sensitive FBG Sensor for Equivalent Salt Deposit Density Measurement

@article{Ma2015HighSF,
  title={High Sensitive FBG Sensor for Equivalent Salt Deposit Density Measurement},
  author={Guo-Ming Ma and Jun Jiang and Rui-duo Mu and Cheng-Rong Li and Ying-Ting Luo},
  journal={IEEE Photonics Technology Letters},
  year={2015},
  volume={27},
  pages={177-180}
}
Online monitoring of the contamination condition of power transmission line is important to prevent insulation from flashover. The conventional online monitoring methods are easily disturbed by the strong electromagnetic interference around the high voltage line. In this letter, Bragg wavelength of polyimide coated fiber Bragg grating (FBG) is found to be slightly restrained by the salt deposited on the polyimide surface. Based on the effect, a special designed FBG sensor is proposed for… CONTINUE READING