Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
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Monitoring of Bridge Structure using Fiber Brags Grating Sensors

광섬유센서패키지 개발과 이를 이용한 교량구조 계측

  • Published : 2008.04.30
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Abstract

Recently structural monitoring using fiber optic sensors became popular, but the fiber sensors are very difficult to apply to the real structure due to thin and fragile shape of the fiber. In this research, we developed the fiber sensor packages easy to attach or fasten to the structures and apply to the real bridge structure for measuring the strains and shape changes. The applied fiber optics sensors show the behavior of the bridge girders which have several cracks in the structure.

지금까지 광섬유센서를 활용한 구조물의 안전진단이 다양하게 연구되어지고 있다. 그러나 현재 광섬유센서는 다루기 어렵다는 문제점을 가지고 있어 실재 현장에 적용하는데 많은 어려움을 겪고 있다. 이에 본 논문에서는 이와 같은 광섬유 격자센서의 설치의 어려움을 보완하고, 기타 여러 가지 장치로 광섬유 센서의 활용을 극대화할 수 있는 패키지를 개발하여, 광섬유 격자 센서를 구조물의 교량의 구조계측에 적극 활용할 수 있게 하였다.

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References

  1. R. M. Measures, 'Fiber optic sensor considerations and developments for smart structures,' Proc. SPJE, Vol. 1588, 1991, pp. 282
  2. W. W. Morey, J.R. Dunphy, and G. Meltz, 'Multiplexing Fiber Bragg Grating Sensor,' SPIE, Vol. 1586, Paper #22, Boston, pp. 216-224
  3. K. O. Hill, Y. Fujii, D. C. Johnson, and B.S. Kawasaki, 'Photosensitivity in Optical Fiber Waveguides. Application to Reflection Filter Fabrication,' Appl. Phys. Lett., Vol. 32, No. 10, May 1978, pp. 647-649 https://doi.org/10.1063/1.89881
  4. K. P. Koo and A. D. Kersey, 'Bragg Grating-Based Laser Sensors Systems with Interferometric Interrogation and Wavelength Division Multiplexing,' Journal of Lightwave Technology, Vol. 13, No.7, July 1995, pp. 1243-1248 https://doi.org/10.1109/50.400692
  5. A. D. Kersey, K. P. Koo and M. A. Davis, 'Fiber Optic Bragg Grating Laser Sensors,' SPIE, Vol. 2292 Fiber Optic and Laser Sensors XII, 1994, pp. 102-112
  6. M. Melle, Kexing Liu, and Raymond M, 'A Passive Wavelength Demodulation System for Guided-Wave Bragg Grating Sensors,' IEEE PHOTONICS TECHNOLOGY LETTERS, Vol. 4, No. 5, May 1992, pp. 516-518 https://doi.org/10.1109/68.136506
  7. J. stone and L. W. Stulz, 'Pigtailed high-finesse tunable fiber Fabry-Perot Interferometer with large, medium and small free spectral range,' Elect. Lett, 23(15), 1987, pp. 781-783 https://doi.org/10.1049/el:19870554
  8. W. W. Morey, G. Meltz, and W. H.Glenn, 'Fiber Optic Bragg Grating Sensors,' SPIE, Vol. 1169, 1989, pp. 98-106
  9. A. D, Kersey, T. A. Berkoff and W. W. Morey, 'High-Resolution Fiber-Grating Based Strain Sensor with Interferometric Wavelength-Shift Detection,' ELECTRONICS LETTERS, 30th, Vol. 28, No. 3, January 1992, pp. 516-518
  10. Kim, K. S., L. Kollar and G. S. Springer, 'A Model of Embedded Fiber Optic Fabry-Perot Temperature and Strain Sensors,' J. of Composite Materials, Vol. 27, 1993, pp. 1618-1662 https://doi.org/10.1177/002199839302701701
  11. 김기수, 한인동 '광섬유 스마트 구조물의 개념을 이용한 교량상부 내진거동 측정,' 한국복합재료학회지 제19권 3호, 2006, pp. 43-49