介电型电活性聚合物传感单元设计

发布时间：2018-04-16 17:08

本文选题：介电型电活性聚合物 + 传感单元　；参考：《农业机械学报》2017年03期

【摘要】：基于介电型电活性聚合物(DEAP)变形时的电容变化原理,设计并实现一种传感单元,其内框可在平面内移动,用于检测平面位移。建立该传感单元的几何模型,得出其电容变化和内框位移的关系。采用差动测量法测量敏感单元电容变化,建立了面对面敏感单元的电容差值和内框平移量的关系。利用该传感单元设计了一个二自由度角度传感器用来测量关节转角,同样采用差动测量法建立了电容差值和转角的关系。实验测得其沿X轴和Y轴平移灵敏度为-57.2 pF/mm和-58.0 pF/mm,绕X轴和Y轴旋转灵敏度为-139.4 pF/(°)和141.6 pF/(°)。测试结果与分析结果较为吻合,验证了DEAP应用于位移传感器和角度传感器的可行性。
[Abstract]:Based on the principle of capacitance variation during the deformation of dielectric active polymer (DEAP), a sensing unit is designed and implemented, in which the inner frame can be moved in the plane and used to detect the displacement of the plane.The geometric model of the sensor unit is established, and the relationship between the capacitance variation and the displacement of the inner frame is obtained.The capacitance change of the sensitive unit is measured by differential measurement method. The relationship between the capacitance difference of the face to face sensitive cell and the translation of the inner frame is established.A two-degree-of-freedom angle sensor is designed to measure the angle of joint rotation, and the relationship between capacitance difference and rotation angle is also established by differential measurement.The sensitivity of translation along X axis and Y axis is -57.2 pF/mm and -58.0 PF / mm, and the rotation sensitivity around X axis and Y axis is -139.4 PF / (掳) and 141.6 PF / r (掳).The test results are in good agreement with the analytical results, which verifies the feasibility of applying DEAP to displacement sensors and angle sensors.
【作者单位】：南京航空航天大学机电学院;扬州大学机械工程学院;南京林业大学机械电子工程学院;
【基金】：国家自然科学基金项目(51305209) 江苏省自然科学基金项目(BK20130979) 江苏省“六大人才高峰”项目(2014-ZBZZ-004) 南京航空航天大学研究生创新基地(实验室)开放基金项目(kfjj20150516) 江苏省科技型企业技术创新项目(BC2015180)
【分类号】：TP212

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