Rao Y J, Jackson D A, Zhang L, Bennion I
Opt Lett. 1996 May 1;21(9):683-5. doi: 10.1364/ol.21.000683.
A spatial/wavelength-division multiplexing topology with combination of a tunable-wavelength filter and an interferometric wavelength scanner is used to interrogate a range of fiber Bragg grating (FBG) strain sensors embedded in modern composite materials. A nine-element FBG sensor system based on this topology is demonstrated for quasi-static strain sensing of a carbon fiber reinforced plastic plate for aerospace applications. Preliminary experimental results show that a strain resolution of 1.8micro rms with an ~30-Hz bandwidth (0.32micro/ radicalHz) for quasi-static strain measurement has been achieved.
一种结合了可调谐波长滤波器和干涉式波长扫描仪的空间/波分复用拓扑结构，用于询问嵌入现代复合材料中的一系列光纤布拉格光栅（FBG）应变传感器。展示了基于这种拓扑结构的九元件FBG传感器系统，用于航空航天应用中碳纤维增强塑料板的准静态应变传感。初步实验结果表明，在准静态应变测量中，实现了约1.8微应变均方根值的应变分辨率和约30赫兹带宽（约0.32微应变/根号赫兹）。
