肘部压力对PVDF传感器压电信号响应

Piezoelectric signal response of elbow pressure on PVDF sensor

设计了一种可嵌入服装的柔性压电传感器,对人体肘部运动进行弯曲力压电性能检测。以聚偏二氟乙烯(PVDF)静电纺纤维膜为基础,封装传感器芯片,为了优化传感器的测试性能,采用多层传感芯片结构以提高薄膜传感器信号响应,并记录手臂在不同弯曲状态下的压电响应信号,实际测试结果表明:双层电纺传感芯片结构具有明显的压电信号响应优势,弯曲力比正压力下的压电信号响应更为明显。

A flexible piezoelectric sensor embedded in clothing is designed to test the piezoelectric properties of the elbow movements. Based on PVDF electrostatic spinning thin films,encapsulate sensor chip,in order to optimize test performance of sensor,improvements have been made by using multilayer sensing chip structure to increase signal responses of sensor,and record piezoelectric response signals of arm in different bending state. The practical test results show that the double-layer chip structure has obviously advantages of piezoelectric signal responses,and the bending force is more obviously than the piezoelectric signal responses under the positive pressure.