桂林电子科技大学学报2016，Vol.36Issue(2)：104-107,4.
水声宽带换能器阻抗匹配电路设计
Design of impedance matching circuit for underwater acoustic broadband transducer
摘要
Abstract
In order to improve the electroacoustic efficiency of the broadband transducer,a dynamic impedance matching cir-cuit is designed.The coarse tuning of matching circuit in every frequency point is implemented by controlling the series in-ductance with the analog switch.Based on the variable capacitance value of the varactor,the matching circuit is tuned.The current value of transmitting terminal is monitored in real time,the state of the matching circuit is tuned on-line according to the current value.Test results show that the transmission distance of each code element signal is increased 0.5-4.5 m by u-sing dynamic impedance matching circuit in the same transmitting condition,the electroacoustic efficiency of the broadband transducer is improved significantly.关键词
水声换能器/阻抗匹配/在线调谐Key words
underwater acoustic transducer/impedance matching/online tuning分类
信息技术与安全科学引用本文复制引用
李路路,王振宇,郭庆..水声宽带换能器阻抗匹配电路设计[J].桂林电子科技大学学报,2016,36(2):104-107,4.基金项目
广西自然科学基金(2014GXNSFAA118393) （2014GXNSFAA118393）
广西自动检测技术与仪器重点实验室主任基金(YQ15116,YQ15103) （YQ15116,YQ15103）
桂林市科学研究与技术开发计划(20150103-3) （20150103-3）
