Title :
Temperature and Strain Online Monitoring System of Power Cable Based on Fiber Bragg Grating
Author :
Guo, Wei ; Li, Yongqian
Author_Institution :
Dept. of Electron. & Commun. Eng., North China Electr. Power Univ., Baoding
Abstract :
The article introduces the mechanism of the power cable fault and the present status of temperature and strain online monitoring of power cable firstly. Then the sensing theories and design of fiber Bragg grating (FBG) are analyzed. A temperature and strain online monitoring system of power cable based on FBG, which uses a sensor network combined wavelength division multiplexing (WDM) and time division multiplexing (TDM), is proposed as well. By applying prestrain technique, the wave with two peaks is reflected by one FBG sensor so that the cross-sensing effect could be eliminated. Finally the functions and application prospects of this system are represented.
Keywords :
computerised monitoring; fibre optic sensors; power cables; time division multiplexing; wavelength division multiplexing; cross-sensing effect; fiber Bragg grating sensor; network combined wavelength division multiplexing; power cable fault; strain online monitoring; temperature online monitoring; time division multiplexing; Bragg gratings; Cable insulation; Capacitive sensors; Current measurement; Electric variables measurement; Electrical resistance measurement; Monitoring; Power cables; Temperature measurement; Temperature sensors;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.1242
