水诱导相分离法制备的PVDF柔性压电传感器  

Water Induced Phase-Separation Method For PVDF Based Piezoelectric Flexible Sensor Devices

作　　者：张帅[1,2,3] 黄涛 丁古巧 梁俊睿[1,2,3] ZHANG Shuai;HUANG Tao;DING Guqiao;LIANG Junrui(Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China;School of Information Science and Technology,ShanghaiTech University,Shanghai 201210;China University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院上海微系统与信息技术研究所,上海200050 [2]上海科技大学信息科学与技术学院,上海201210 [3]中国科学院大学,北京100049

出　　处：《传感技术学报》2019年第8期1130-1135,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基(51802337,11774368,11804353)

摘　　要：介绍了一种利用水诱导相分离促使普通PVDF转变成压电高分子的方法,并利用红外吸收光谱和X射线衍射对其进行表征和分析。在压电器件部分,测试了该材料制作的压电传感器的稳定性、线性偏差和响应时间。测试结果表明,该方法制备的PVDF传感器具有良好的稳定性;线性度良好,偏差在±5%以内,灵敏度为0.27 V/kPa;响应迅速,完全响应时间为200 ms。在应用部分,将该材料制成的传感器阵列成功应用于羽毛球拍,实现了羽毛球在球拍上击打的位置和力度的检测,并通过蓝牙实时传输至电脑,并在电脑上进行直观显示和记录。这一使用场景证明了PVDF柔性压电传感器将为可穿戴设备和智能硬件的发展带来更多的可能。A water-induced method based on phase-separation principle to transform non-piezoelectric PVDF into piezoelectric state was introduced.The FTIR and XRD characterizations had been applied to analysis the piezoelectric phases in PVDF.The test results show that the sensor has good stability.The linearity of pressure versus voltage is good and deviation is within±5%and the sensitivity is 0.27 V/kPa.The response of this sensor is rapid,and the complete response time is 200 ms.In the application part,the sensor array made of this material is successfully applied to the badminton racket,which realizes the detection of the position and strength of the badminton hitting on the racket.The piezoelectrical signals can be transmitted to the computer through bluetooth and visually displayed on the computer.This article demonstrates that PVDF based flexible piezoelectric sensors will bring more possibilities for the development of wearable devices and smart hardware.

关 键 词：柔性压电传感器 水诱导相分离法 传感器阵列 PVDF 智能硬件 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]