多普勒计程仪用换能器匹配技术的研究  

Research on the Transducer-matching Technology Using in Doppler Logs

作　　者：陈婷[1] 梁懿[1] 刘建国[1] 李庆洪[1] 

机构地区：[1]中国电子科技集团公司第26研究所,重庆400060

出　　处：《压电与声光》2013年第2期215-217,共3页Piezoelectrics & Acoustooptics

基　　金：国际科技合作计划基金资助项目(2010DFR10690)

摘　　要：介绍了多普勒计程仪中使用的压电陶瓷换能器和发射组件之间匹配的重要性,分析了压电陶瓷换能器的电学模型,研究了压电陶瓷换能器的电学匹配方式,给出了多普勒计程仪中发射器与换能器匹配的电路图,并给出了调谐元件所需值的计算公式。通过多次调试匹配后的换能器可工作在最佳工作状态,提高了激励功放的工作效率。The article describes the importance of the transducer-matching between the piezoelectric ceramic transducer and the transmitting module in Dopple logs. The circuit model of the piezoelectric transducer was ana- lyzed and the electric matching method of piezoelectric transducer was also studied in this paper. The matching cir- cuit diagram of the transmitter and the transducer in Doppler logs was given. The calculation expressions of the tun- ing elements were also given. By using this method, the transducer can works on its best status. The efficiency of the power amplifier increases too.

关 键 词：压电陶瓷换能器 电路模型 匹配 多普勒计程仪 

分 类 号：TB565.1[交通运输工程—水声工程]