摘要
提出利用光学杠杆测量电致伸缩材料性能的新方法,通过触点短臂传感微形变,并通过光学杠杆将微形变放大后形成光斑,利用CCD摄像头采集放大前后的光斑,通过对光斑图像进一步的处理可以得到微位移量,从而实现电致伸缩材料应变测量。利用该方法构建的测试系统对掺杂了钛酸钡的聚氨酯高分子材料的电致伸缩性能进行了测量,结果表明:在高场强作用下,掺杂聚氨酯高分子材料表现出了明显的电致伸缩特性;光学杠杆法的测试系统能有效地测量包括电致伸缩微形变在内的微形变,同时为电致伸缩材料性能研究提供了一种方法。
A new electrostriction material strain measure method using optical lever has been proposed. Short ann senses micro strain at contact point, with the help of optical lever micro strain has been magnified to form a facula. The CCD camera samples the positions Of facula and the micro displacement of contact point can be obtained. A system has been built using this method to measure the electrostrictive character of polyurethane increases with the introduction of barium titanate into polyurethane and the results show that, in the high electric field, the material has an appreciable electrostrictive character. Optical lever measure method is an effective method for micro strain measurement.
出处
《测控技术》
CSCD
2007年第11期68-70,共3页
Measurement & Control Technology
基金
江苏省自然科学基金资助项目(BK2003063)
关键词
光学杠杆
电致伸缩
测量
optical lever
electrostriction
measurement
