基于高弹性聚合物全息传感器的位移响应特性研究  

Displacement Response Characteristic Research in Holographic Senor Based on Highly Stretchable Polymer

作　　者：焦新莹 王蕊[1] 王保华 刘鸿鹏[1] JIAO Xin-ying;WANG Rui;WANG Bao-hua;LIU Hong-peng(College of Science,Civil Aviation University ofChina,Tianjin 300300,China)

机构地区：[1]中国民航大学理学院

出　　处：《仪表技术与传感器》2019年第5期14-17,21,共5页Instrument Technique and Sensor

基　　金：国家青年自然科学基金(61505252);中央高校理学专项(3122017074);中国民航大学大学生创新创业训练计划(201710059009,201810059049);中国民航大学实验技术创新基金(2017SYCX16)

摘　　要：目前的光子学传感器很难对聚合物弹性形变与位移做出传感响应。为了改善光子传感器的缺陷,研制了基于高弹性聚合物的全息传感器,并对传感器在拉力作用下的微形变与相应的微位移传感响应进行了表征。获得了微位移与光栅衍射光谱间的定量线性关系。证实波长红移的主要诱因是全息光栅间距的增大。多次反复测试结果证实了全息位移传感器的可逆性。The holographic sensor uses holographic grating recorded in the polymer as the characterization unit.The color change of holographic image and the shift of spectral peak position feedback the characteristics of the external environment.There fore,it has significant advantages in the field of visual sensing.Due to their elastic properties,the self deformation of polymer ma terials has important application value for characterizing the stimulus response characteristics of smart gel materials.However,due to the brittleness and low tensile strength of the substrate materials,it is difficult for the current photonic sensors to respond to the elastic deformation and displacement of the polymer.In order to improve the defect of photon sensor,a holographic sensor based on high elastic polymer was developed.The microdeformation of the sensor under tension and the corresponding response of the mi crodisplacement sensor were characterized.The quantitative linear relationship between the micro-displacement and grating dif fraction spectrum was obtained.The main cause of wavelength redshift was the increase of holographic grating spacing.The reversi bility of the holographic displacement sensor was proved by the test results.

关 键 词：全息光学装置 聚合物 全息传感器 位移响应 

分 类 号：O438[机械工程—光学工程]