# 파이버 브래그 격자를 이용한 곡률 측정

• 정진호 (호서대학교 전자공학과) ;
• 이종윤 (호서대학교 전자공학과)
• Published : 2008.08.31
• 52 8

#### Abstract

To measure the curvature, in this paper, we investigate an optical curvature sensor based on the fiber Bragg gratings. We observed the variation of the Bragg resonant wavelength shift to measure the curvature change. From the experimental results, we knew that the Brags resonant wavelength shift was lineally increased with the increase of the curvature from $0\;m^{-1}$ to $10\;m^{-1}$. It's slope is about $8.8\;pm/m^{-1}$. On the other hand, the spectral reflection decreased with the increase of the curvature.

Curvature;FBG

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