离子交换聚合金属材料在匀速流中的传感实验研究

Experimental Study on Sensing of Ion-exchange Polymer Metal Composite in Uniform Flow

离子聚合物金属复合材料IPMC(Ion-exchange polymer metal composite,IPMC)具有驱动和传感功能。本文利用IPMC的传感能力,设计了一种海流速度信息传感器,基于3种模型分别使用ANSYS和MATLAB软件对不同条件的情况进行仿真,并设计测试系统进行实验,分析验证了片状IPMC在均匀流速下的传感能力。研究结果表明:片状IPMC的初始稳定电压以及测量灵敏度均与材料面积正相关;随着流速的增大,IPMC达到稳定输出电压的时间缩短,且材料输出电压在达到稳定前与时间呈现二次多项式函数关系,函数最大值即为实验所测得的稳定输出电压;各组次实验的重复性良好。

Ion exchange polymer metal composite(IPMC)has both driving and sensing functions.In this paper,based on the sensing ability of IPMC,an ocean current velocity information sensor is designed.Based on the three models,ANSYS and MATLAB software are used to simulate different conditions.A test system was designed to analyze and verify the sensing ability of the IPMC under uniform flow rate.The results show that:the initial stable voltage and measurement sensitivity of IPMC are positively correlated with the material area;the time for IPMC to reach the stable output voltagewith the increasing of flow rate is shortened;before reaching the stable output voltage,the output voltage is a quadratic polynomial function with time,and the maximum value of the function is the measured stable output voltage;the repeatability of each group of experiments is good.