DESIGN AND EXPERIMENTAL RESEARCH ON PREAMPLIFIER MODULE FOR PVDF PIEZOELECTRIC FILM SENSORS

摘要：

　　PVDF is a polymer formed by the monomer partial fluorine ethylene CH2 =CF2 polymerization.It has good piezoelectric effect and is widely used in vibration measurement and other fields.In this paper, by analyzing the circuit model of PVDF piezoelectric thin film, the preamplifier module is designed, analyzed theoretically and tested.Testing results are consistent with theoretical ones.The flow field information of the circular tube was tested by the preamplifier module of the PVDF piezoelectric film sensors.Experimental results show that when measuring tube flow in low frequency region, PVDF piezoelectric film sensors are much better than accelerometer sensors.It can measure abundant low-frequency components, which provides a good experimental basis for analyzing the flow field in the tube.

关键词： PVDF Sensor Preamplifier module

作者: Xing-chen HAN Xian-mei WU Bei-bei DING Jia-yi CHEN

作者单位: State Key Laboratory on Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100 State Key Laboratory on Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 448-452

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）