Title :
Birefrigence Optimization Algorithm of the Polarimetric CT System
Author :
Park, Hyoung Jun ; Kim, Hyun Jin ; Song, Minho
Author_Institution :
Chonbuk Nat. Univ., Chonju
Abstract :
We developed a fiber-optic current sensor system for the over-current protection relay. A spun fiber was employed to eliminate linear birefringence effect, and to compare the efficiency a twisted and a Flint glass fiber were also tested. From the experimental results, we obtained less than 2% of linear error with spun fiber output according to current increases. The SNR at 60 Hz is measured to be more than 55 dB. The spun fiber sensor coil showed the sensitivity of about 6 and 35 dB better than the Flint glass fiber and twisted fiber, respectively.
Keywords :
fibre optic sensors; glass fibres; optical fibres; overcurrent protection; Flint glass fiber; birefrigence optimization; fiber-optic current sensor; linear birefringence effect elimination; over-current protection relay; polarimetric current transducer; spun fiber sensor coil; twisted fiber; Birefringence; Coils; Glass; High speed optical techniques; Optical fiber polarization; Optical fiber sensors; Optical fiber testing; Optical interferometry; Optical sensors; Sensor phenomena and characterization;
Conference_Titel :
Information Technology Convergence, 2007. ISITC 2007. International Symposium on
Conference_Location :
Joenju
Print_ISBN :
0-7695-3045-1
Electronic_ISBN :
978-0-7695-3045-1
DOI :
10.1109/ISITC.2007.75
