한국복합재료학회:학술대회논문집 (Proceedings of the Korean Society For Composite Materials Conference)
- 한국복합재료학회 2002년도 추계학술발표대회 논문집
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- Pages.155-160
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- 2002
광섬유 브래그 격자 센서의 게이지 길이에 따른 신호 특성
Signal Characteristics of Fiber Bragg Grating Sensor with Gage Length
초록
A new fabrication method of FBG sensor with gage length shorter than 10 mm is introduced using the reflection prism with special coating on the surface. It is verified that the bandwidth of FBG sensor increases exponentially as the gage length of it decreases. The transverse stress and strain gradient induced by local stress concentration which occurs during curing has an influence on the FBG sensor with gage length of 2 mm less than that of 10 mm.