A Piezo-PWP Method for Charge Measurement of the Cell Suspension

摘要：

A new system for measuring charge of the cell suspension is presented, which is based on the piezoelectric pressure wave propagation method (Piezo-PWP). According to charge characters of the cell suspension, the principle of this system, the design of electrodes and the cavity structure are introduced. The piezoelectric ceramics PbZrTiO3 (PZT) and the piezoelectric polyvinylidene fluoride (PVDF) film of 25μm are respectively used as transmitter, and the PVDF as receiver in experiments of testing the PWP system. According to the pulse wave with 14ns width and up to 600V amplitude, which are put on the piezoelectric material to produce acoustic waves, signal waves got from the receiver are analyzed. The analyses of experimental waves prove that the PZT is the proper choice used as the acoustic generator in the experiment of spawn suspension. In this way the charge of the cell suspension can be measured. The result clarifies the system maybe helpful to the advanced research.

关键词： cell suspension pressure wave propagation polyvinylidene fluoride PbZrTiO3

作者: Lin CHENG Lisheng ZHONG Yue ZHANG Shitian TAN Jingliang CHEN

作者单位: State Key Laboratory of Electrical Insulation & Power Equipment, Xian Jiaotong University, Xian, Shaanxi, 710049, China

会议类型: 国际会议

会议名称: 第九届电介质材料性能与应用国际会议(The 9th International Conference on Properties and Applications of Dielectric Materials)

会议地点: 哈尔滨

会议语种:英文

页码: 907-910

在线出版日期: 2009-07-19（万方平台首次上网日期，不代表论文的发表时间）