现代电子技术2024，Vol.47Issue(14)：129-134,6.DOI:10.16652/j.issn.1004-373x.2024.14.020
排水管道声呐成像检测中换能器阻抗匹配技术研究
Research on transducers impedance matching technology in sonar imaging detection of drainage pipelines
摘要
Abstract
In allusion to the current problems of sonar detection signals being prone to oscillation and tailing,low efficiency of electroacoustic energy exchange,and difficulty in distinguishing sonar detection images in drainage pipelines,the core technology of impedance matching for integrated sonar transducers is researched emphatically,and the detailed research was conducted from three aspects:equivalent circuit modeling of sonar transducers,impedance matching network design,and circuit implementation and testing.The comparative analysis was conducted on the testing results of sonar transducers before and after the addition of impedance matching circuits.The results show that the designed impedance matching circuit is simple and effective,the sonar imaging images is clear,and the quantitative analysis error rate of sonar imaging detection results is low.The error rates of sonar detection quantities for the length,width,and diagonal distance of the tested object are 1.04%,1.71%,and 1.37%,respectively,which met the latest industry technical standards.The research findings can improve the detection ability of drainage pipeline diseases,which is of great significance for the prevention and control of urban waterlogging disasters.关键词
声呐换能器/阻抗匹配/声呐成像检测/高水位排水管道/等效电路/散射参数/软件仿真Key words
sonar transducer/impedance matching/sonar imaging detection/high water-level drainage pipeline/equivalent circuit/scattering parameter/software simulation分类
信息技术与安全科学引用本文复制引用
朱珺,王永涛..排水管道声呐成像检测中换能器阻抗匹配技术研究[J].现代电子技术,2024,47(14):129-134,6.基金项目
国家自然科学基金资助项目(41772392) （41772392）
湖北省教育科学规划项目(2022GB259) （2022GB259）
