한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2008년도 추계학술대회 논문집
- /
- Pages.574-583
- /
- 2008
FBG 센서의 온도와 변형률 동시 측정기법 기술 분석
Technical review of discrimination method between strain and temperature on the FBG sensor
초록
FBG(Fiber Bragg grating)s have shown a great potential for sensing applications, and are easily embedded in materials with a negligible impact on the mechanical properties of the host. However, the use of FBG sensors is limited by their simultaneous dependence on strain and temperature, thus only one parameter can be determined from a single grating. This paper reviews various methods to discriminate between strain and temperature effects. To overcome this cross sensitivity using only embedded optical fibers, a number of techniques have been proposed, most of them relying on the deconvolution of two simultaneous measurements.
키워드