解晓雯, 严琪琪, 单声宇.霍耳位移法测量压电陶瓷的压电系数[J].压电与声光,2018,40(3):362-365.XIE Xiaowen, YAN Qiqi, SHAN Shengyu.Measurement of Transverse Piezoelectric Coefficient by Hall Displacement Sensor[J].PIEZOELECTRICS AND ACOUSTOOPTICS
霍耳位移法测量压电陶瓷的压电系数
Measurement of Transverse Piezoelectric Coefficient by Hall Displacement Sensor
  
DOI:10.11977/j.issn.1004-2474.2018.03.014
中文关键词:  霍耳效应  霍耳位移传感器  压电系数  逆压电效应  微小位移测量
英文关键词:Hall effect  Hall displacement sensor  piezoelectric coefficient  converse piezoelectric effect  micro displacement measurement
基金项目:拓扑体系量子态调控及输运特性(KG12004001)
作者单位
解晓雯, 严琪琪, 单声宇 (北京航空航天大学 物理科学与核能工程学院北京 100083) 
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中文摘要:
      提出了一种利用霍耳位移传感器测量压电陶瓷的横向压电系数的新方法。该方法利用压电陶瓷的逆压电效应,对压电陶瓷施加一定大小的电压,使其在垂直电场方向上产生微小形变,利用霍耳位移传感器法测量这一微小位移,得到不同电压驱动下压电陶瓷相应的伸长量,通过计算得出该材料的压电系数。实验表明,该方法简单可靠,精确度高,实验结果符合预期。
英文摘要:
      A new method of measuring the transverse piezoelectric coefficient of piezoelectric ceramics by utilizing Hall displacement sensor is proposed in this paper. Based on the converse piezoelectric effect, a certain voltage is applied to the piezoelectric ceramic so as to generate a tiny deformation in the direction of the vertical electric field. This micro displacement is measured by the Hall displacement sensor, and according to the corresponding elongation of the piezoelectric ceramic under different voltages, the piezoelectric coefficient of piezoelectric ceramic can be obtained by calculation.The experimental results show that the method is simple, reliable and accurate, and the experimental results are in line with the expectation.
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