DOI QR코드

DOI QR Code

Remote Measurement of a Distant Temperature and Current using Fiber Bragg Grating Sensors and Erbium-doped Fiber Ring Laser

어븀 첨가 광섬유형 링 레이저와 광섬유 격자 기반 센서를 이용한 원거리의 온도 및 전류 측정

  • 손경락 (한국해양대학교 컴퓨터제어전자통신공학부) ;
  • 심준환 (한국해양대학교 컴퓨터제어전자통신공학부) ;
  • 양규식 (한국해양대학교 컴퓨터제어전자통신공학부)
  • Published : 2008.11.30

Abstract

A long-distance remote sensing of temperature and current based on a fiber Bragg grating (FBG) is proposed and demonstrated. The thermal expanding effect of the epoxy and the Er-doped fiber ring laser (EFRL) are applied to the sensor system to enhance the temperature and current sensitivity. An EFRL with a 5 km-single-mode fiber and a FBG shows a high extinction ratio of more than 60 dB and a low power fluctuation of less than 1 dB. The metal wires are used to supply the current to the sensors. When the NOA65 puts on the FBG as a thermal expanding material, the temperature and current sensitivity of the lasing wavelength shift are about $30\;pm/^{\circ}C$ and 3pm/mA, respectively. The proposed sensing scheme is useful for measurement of current or temperature at a distant object of more than several km.

Keywords

References

  1. T. Poloso, "Fiber Bragg gratings optical sensing technology", Smart Materials Bulletin, pp. 7-10, Sept. 2001
  2. 서준규, 김경조, 오민철, 이상민, 김영제, 김명현, "광섬유 센서를 이용한 LNG 선박의 간열재의 충격 손상 감지 시스템", 제 15회 광전자 및 광통신 학술회의, pp. 355-356, 2008
  3. L-Y. Shao, X. Dong, A,. P. Zhang, H-Y. Tam, and S. He, "High-resolution strain and temperature sensor based on distributed Bragg refractor fiber laser", IEEE Photon. Technol. Lett., Vol. 19, No. 20, pp. 1598-1600, 2007 https://doi.org/10.1109/LPT.2007.903535
  4. T. V. A. Tran, Y-G. Han, Y. J. Lee, S. H. Kim, and S. B. Lee, "Performance enhancement of long-distance simulaneous measurement of strain and temperature based on a fiber Raman laser with an etched FBG", IEEE Photon. Technol. Lett., Vol. 17, No. 9, pp. 1920-1922, 2005 https://doi.org/10.1109/LPT.2005.853519
  5. C-T Shyu and Likarn Wang, "Sensitive linear electric current measurement using two metal-coated single-mode optical fibers", IEEE J. Lightwave Technol., Vol. 12, No. 11, pp. 2040-2048, 1994 https://doi.org/10.1109/50.336070
  6. J. L Cruz, L. Dong, and L. Reekie, "Improved thermal sensitivity of fiber bragg gratings using a polymer overlayer", Electron. Lett., Vol. 32, No. 4, pp. 385-387, 1996 https://doi.org/10.1049/el:19960257
  7. J. Mandal, T. Sun, K. T. V. Grattan, R. T. Zheng, N. Q. Nam, and A. T. Augousti, "A parallel multiplexed temperature sensor system using Bragg-grating-based fiber laser", IEEE Sensors J., Vol. 6, No. 4, pp. 986-995, 2006 https://doi.org/10.1109/JSEN.2006.878001
  8. D. Reilly, A. J. Willshire, G. Fusiek, P. Niewczas, and J. R. McDonald, "A fiber-Bragg-grating-based sensor for simultaneous AC current and temperature measurement", IEEE Sensors J., Vol. 6, No. 6, pp. 1539-1542, 1997 https://doi.org/10.1109/JSEN.2006.883858
  9. 김영복, 김태영, 고종경, 박창수, "자체 주입 잠김된 반사형 반도체 광 층폭기를 기반으로 하는 변형 및 온도 센서 네트워크", 제 15회 광전자 및 광통신 학술회의, pp. 357-358, 2008

Cited by

  1. 파장가변이 가능한 완전 광섬유형 궤환 레이저 구현 및 응용 vol.33, pp.8, 2008, https://doi.org/10.5916/jkosme.2009.33.8.1220