基于弹性聚合物全息传感器的应变传感响应特性  

Strain Sensing Response of Holographic Senor Based on Stretchable Polymer

作　　者：魏明昭 刘鸿鹏[1] 刘洋钰 王保华 李立[1] 王蕊[1] 焦新莹 WEI Ming-zhao;LIU Hong-peng;LIU Yang-yu;WANG Bao-hua;LI Li;WANG Rui;JIAO Xin-ying(College of Science,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学理学院,天津300300

出　　处：《仪表技术与传感器》2021年第5期22-26,共5页Instrument Technique and Sensor

基　　金：中国民航大学大学生创新创业项目(202010059008)。

摘　　要：高分子材料在外部作用力下的形变对于研究材料的宏观力学性能与微观断裂机理有着重要应用价值。光学传感方式是表征材料应变的重要手段。然而由于基底的脆性,光学传感器很难对应变做出高性能响应。为此研制了基于高弹性聚合物的全息传感器,并对传感器在拉、压力作用下的应变响应特征进行了测试。获得形变与光栅衍射光谱峰值间的线性关系,并探讨了光谱峰值波长偏移的主要诱因。多次反复拉伸测试结果证实了全息传感器的可逆性。The deformation of polymer materials under external forces has important application value for studying the macroscopic mechanical properties and microscopic fracture mechanism of materials.Optical sensing is an important method to characterize the strain of materials.However,because of the brittleness of the substrate materials,it is difficult for current photonic sensors to make high-performance response.A holographic sensor based on high elastic polymer was experimentally developed,and the strain response characteristics of the sensor under tension and pressure stress were tested.The linear relationship between deformation and the peak value of grating diffraction spectrum was obtained,and the main causes of the shift of peak wavelength were discussed.The reversibility of the holographic sensor are confirmed by repeated tensile tests.

关 键 词：全息传感器 光致聚合物 全息光学装置 应变 全息体光栅 弹性材料 

分 类 号：O438.1[机械工程—光学工程]