STUDY ON HIGH-TEMPERATURE PROPERTIES OF 1-3 PIEZOELECTRIC COMPOSITES

摘要：

　　High temperature properties of 1-3 piezoelectric composite material sample were studied for borehole ultrasonic imaging logging.The pulse echo waveforms were measured from room temperature to 240℃.The curves of echo peak values,the central frequency and bandwidth extracted from the corresponding frequency spectrum,with changing temperature were obtained.The results showed that the material can work steadily and continuously under 210℃.This work will provide experimental data and basis for the development of high temperature ultrasonic transducers and borehole ultrasonic imaging logging tools.

关键词： Piezoelectric composites High temperature properties Experimental method Frequency bandwidth Echo responses

作者: Bin LIU Qian WEI Cheng-xuan CHE Jian-sheng CONG

作者单位: Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, P.R.China;Beijing Engineering and Technology Research Center for Deep Drilling Exploration, Beijing, 100190, P.R.China

会议类型: 国际会议

会议名称: The 2019 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2019(第14届)全国压电和声波理论及器件技术研讨会)

会议地点: 石家庄

会议语种:英文

页码: 171-174

在线出版日期: 2019-11-01（万方平台首次上网日期，不代表论文的发表时间）