Browse > Article

Temperature Compensation Technique for Steel Sleeve Packaged FBG Strain Sensor and Its Application in Structural Monitoring  

Yun, Ying-Wei (Luoyang Institute of Science and Technology & candidate in Kumoh National Institute of Technology)
Jang, Il-Young (Civil and Environmental Engineering Dept. Kumoh National Institute of Technology)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.8, no.6, 2008 , pp. 1-5 More about this Journal
Abstract
As bare Fiber Bragg Grating (FBG) sensors are very fragile, bare FBG without encapsulation is not properly applied in practical infrastructures directly due to the harsh environment in practical engineering. Steel sleeve packaged FBG strain sensor is widely used in civil engineering. Since FBG senses both strain and temperature simultaneously, for accurate measurement of strain, temperature compensation for FBG strain sensors is indispensable. In this paper, based on the FBG's strain and temperature sensing principles, the temperature compensation techniques for steel sleeve packaged FBG sensors are brought forward. And the experiment of concrete early-age shrinkage monitoring by dual FBG sensors is carried out to test the feasibility of the temperature compensation technique.
Keywords
Steel sleeve packaged FBG strain sensor; sensing mechanism; temperature compensation; structural monitoring;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Davis H.E. (1940) Autogenous volume change of concrete. Proceeding of the 43rd Annual American Society for Testing Materials, Atlantic City, ASTM, pp. 1103-1113
2 Meltz, G., Morey, W. W and Glenn, W. H. (1989) Formation of Bragg gratings in optical fibers by a transverse holographic method. Opt. Lett. Vol. 14, No. 15, pp.823-825   DOI
3 Xu, M. G., Dong, L. and Reekie, L. et al. (1995) Temperate-independent strain sensor using a chirped Bragg grating in a tapered optical fiber. Electronics Letters, Vol.31, pp.823-825   DOI   ScienceOn
4 Xu, M.G., Archambault J.L., Reekei L. ,et al.(1994) Discrimination between strain and temperature effects using dual-wave length fiber grating sensors. Electronics letters, Vol. 30, No.13, pp.1085-1087   DOI   ScienceOn
5 Tazawa E. and Miyazawa S.(1993) Autogenous shrinkage of concrete and its importance in concrete technology, in: Z.P. Bazant, L. Carol (Eds.), Creep and Shrinkage of Concrete, Proceedings of the 5th International RILEM Symposium, E & FN Spon, London, pp. 159-168
6 Aictin, P.C. (1999) Autogenous Shrinkage of Concrete. edited by Tazawa, E., E & FN Spon, pp. 257-268
7 Hill, K. O., Fujii, Y., Johnson D.C. et al. (1978) Photosensitivity in optical fiber waveguides: application to reflection fiber fabrication. Appl. Phys. Lett. Vol. 32, No. 10, pp. 647-649   DOI
8 Zhou Zhi and OU Jinping. (2004) Techniques of temperature compensation for FBG strain sensors. Proceeding of Asian Pascifc Fundamental Problems of Opto- and Microelectronics (APCOM 2004), Khabarovsk, Russia, pp.465-471
9 Iwashima, T., Inoue, A., Shigematsu, M. et al. (1997) Temperature compensation technique for fiber Bragg grating using liquid crystalline polymer tubes. Electronics letters, Vol. 33, No. 5, pp. 417-419   DOI   ScienceOn