适用于空气和水下的超声测距技术研究  

Research on Ultrasonic Ranging Technology Suitable for Air and Water

作　　者：谢洪平 张洋 王璐瑶 谷开新 XIE Hongping;ZHANG Yang;WANG Luyao;GU Kaixin(Construction Branch of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 210009,China)

机构地区：[1]国网江苏省电力有限公司建设分公司,南京210009

出　　处：《煤炭技术》2025年第4期42-46,共5页Coal Technology

基　　金：国网江苏省电力有限公司孵化项目(JF2024005)。

摘　　要：针对同一型号超声波换能器难以同时实现空气和水下测距的问题,以灌注桩成孔孔径测量为背景,从分析介质对超声测距性能影响的机理入手,分别设计适用这2种介质的信号调理电路,形成了空气和水下测距的通用性和连贯性方案。利用搭建的实验平台验证了该方案的可行性,结果表明,在2种介质条件下都可达到预期的测距范围和精度,为类似应用场景提供了理论基础和工程实现途径。To overcome the obstacle of ultrasonic ranging by using unique type of transducer in the air and water,which is essential for the application such as cast-in-place piles′borehole diameter measurement,a universal and coherent dual medium ranging scheme is proposed,in which high-sensitivity weak signals conditioning circuit is designed respectively for each media by analyzing media′s influence mechanism on ultrasonic ranging performance.Experimental resultsobtained from the constructed ranging platformproves that the scheme is effective,which can get expected ranging range and accuracy under both media conditions,and it can provide theoretical foundation and provides engineering approach for similar scenarios.

关 键 词：超声测距 双介质 超声波换能器 信号调理 灌注桩 

分 类 号：TB551[理学—物理]