Earticle

초록

영어

In this article we have discussed the relative humidity sensor based on fiber grating Fabry-Perot (FBG-FP) coated with polyimide (PI) as a moisture sensitive film in theory. The moisture expansion coefficient of PI film as moisture strain on the FBG-FP sensor, which will result the change of the fiber core effective refractive index, the length of the F-P cavity and the period and effective refractive index of FBG. For that reason, the interference fringes of the reflection spectrum will be changed also. The shift of peak wavelength of the spectrum is traced by the simulation of Matlab. We discuss three situations: the coating on the FBG, FP cavity and the both, and regardless of the temperature changes, the simulation results show that the RH sensitivity can reach to 3.77pm/%RH, 2.12 pm/%RH, 4.05 pm/%RH, respectively.

목차

Abstract
 1. Introduction
 2. Principle of FBG-FP Sensor
 3. Simulation of the coated FBG-FP humidity Sensor
  3.1 Only the F-P Cavity Coated with PI
  3.2 The F-P Cavity and FBG are Coated with same Thickness PI
  3.3 The F-P Cavity and FBG are Coated with Different Thickness PI
 4. Conclusion
 Acknowledgements
 References

키워드

저자

• Xiong Yanling [ Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China ]
• Liang Huan [ Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China ]
• Ren Naikui [ Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China ]
• Han Junsheng [ Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China ]
• Wu Mingze [ Department of Applied Science, Harbin University of Science and Technology, Harbin 150080, PR China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605