Birefrigence Optimization Algorithm of the Polarimetric CT System

Author

Park, Hyoung Jun ; Kim, Hyun Jin ; Song, Minho

Author_Institution

Chonbuk Nat. Univ., Chonju

fYear

2007

fDate

23-24 Nov. 2007

Firstpage

410

Lastpage

414

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISITC.2007.75

Filename

4410676