曲率光纤传感器的智能夹层系统研究  

Research on the smart layer of a curvature fiber-optic sensor

作　　者：狄海廷[1,2] 付宜利[1] 刘仁强[3] 

机构地区：[1]哈尔滨工业大学机器人技术与系统国家重点实验室,黑龙江哈尔滨150080 [2]东北林业大学工程技术学院,黑龙江哈尔滨150040 [3]上海交通大学机械与动力工程学院,上海200240

出　　处：《光电子．激光》2010年第11期1597-1601,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(50975170);哈尔滨工业大学跨学科交叉性研究基金资助项目(HIT.MD2003.11)

摘　　要：根据光纤自诊断系统模块化、集成化要求,将曲率光纤传感器以环形布置在PE膜的对称两面,研制了一种智能夹层系统,它可以同时测量结构的曲率和扭转。提出了智能夹层系统的标定方法。对埋有光纤智能夹层的玻璃纤维增强树脂基复合材料试件在CMT6305型电子万能试验机上进行了轴向拉伸、压缩试验和三点式弯曲性能试验,结果表明,智能夹层的埋入对智能结构力学性能有一定的影响,但影响不大。将光纤智能夹层埋入复合材料内部进行了结构曲率测试,在埋入过程中,光纤传感器的完好率达100%。与埋入前的标定结果相比,智能夹层在埋入后的曲率测量最大偏差为5.2%,说明光纤智能夹层可以在埋入复合材料之前进行标定。Based on the modularization and integration of self-diagnosing systems, the smart layer of a curvature fiber-optic sensor is developed by assigning sensors at two sides of PE films.It can measure curvature and torsion of the structure at the same time.A calibration method of the smart layer is proposed.Axial tension, compression test and three-point bending test are carried out on the electron omnipotence machine CMT6305, which show that the smart layer does affect the structural mechanics properties of fiberglass reinforced polymer matrix composites.However, the influence is not remarkable.In the process of embedding the smart layer into composites, the intact rate of fiber optic sensors is 100%.Compared with the calibration result before embedding,the maximum curvature error measured by the smart layer is 5.2% after embedding, which shows that the smart layer can be calibrated before embedding.

关 键 词：光纤智能夹层 光纤传感器 曲率测量 力学特性 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]