Title :
A novel Fiber Bragg Grating tension sensor for ground conductor
Author :
Ma, Guo-ming ; Li, Cheng-rong ; Jiang, Jian ; Quan, Jiang-Tao ; Meng, Chen-ping ; Cheng, Yang-chun
Author_Institution :
Beijing Key Lab. of High Voltage, North China Electr. Power Univ., Beijing, China
Abstract :
Ground conductor is easily broken when ice accumulates on it. Thus a novel Fiber Bragg Grating (FBG) sensor is proposed to measure the tension of the ground conductor to warning the danger. The factors affecting the sensitivity of the sensor are studied. The results of tension experiment indicate the sensitivity and resolution of the sensor are 0.2286pm/N and 2.18N respectively, and both of them can be easily altered by the equation proposed. The temperature effect on the measurement, which is caused by the crosstalk of FBG, is reduced by setting a zero-force FBG. The error of the sensor caused by temperature, evaluated by putting the sensor in an oven, is lower than 10 pm from -30°C to 50°C. An ice simulation platform is build in our laboratory, the results show the relative error of the simulated ice load calculated by the output of the sensor is lower than 5%.
Keywords :
Bragg gratings; earthing; fibre optic sensors; optical crosstalk; optical fibres; strain measurement; FBG sensor; fiber Bragg grating tension sensor; ground conductor; ice simulation platform; optical crosstalk; sensor sensitivity; strain measurement; temperature -30 degC to 50 degC; Bragg gratings; Conductors; Sensitivity; Strain; Temperature measurement; Temperature sensors; Wavelength measurement;
Conference_Titel :
High Voltage Engineering and Application (ICHVE), 2010 International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-8283-2
DOI :
10.1109/ICHVE.2010.5640819
