空间积分光纤应变传感器用于智能结构的振动检测(英文)

Spatially Integrating Fiber Optic Strain Sensor For Vibration Monitoring In Smart Structure

研究了空间分布的光纤应变传感器及其在振动检测中的应用．其原理是由结构的各种振型的分析，选择对不同模态具有不同灵敏度的传感光纤分布方式．以偏振光纤制成的此类传感系统成功地使用在受到外部随机激励的电流变结构的检测和控制中．

During the present study, a spatially integrating fiber optic sensor (FOS) was used for vibration monitoring. It is based on that the optimal placement of the sensing element can be sought by using a prior knowledge of the mode shapes of the structure. The applicability of this approach to polarimetric optical fibers is described. The acquired integrating FOS signal was used to sense and control the vibration of an electrorheological structure subjected to external excitations.