FPGA超声波换能器测试平台的设计  

An FPGA-based Ultrasonic Transducer Test Platform

作　　者：赵娜 赵旭超 赵炎 郑晓平 ZHAO Na;ZHAO Xu-chao;ZHAO Yan;ZHENG Xiao-ping(School of Information Engineering,Eastern Liaoning University,Dandong 118003,China;Dandong Top Electronics Instrument Group Co.Ltd,Dandong 118000,China;Dascom Information Technology(Shenzhen)Co.Ltd,Shenzhen 518000,China)

机构地区：[1]辽东学院信息工程学院,辽宁丹东118003 [2]丹东通博电器(集团)有限公司,辽宁丹东118000 [3]得实信息科技(深圳)有限公司,广东深圳518000

出　　处：《辽东学院学报（自然科学版）》2020年第1期37-44,共8页Journal of Eastern Liaoning University:Natural Science Edition

摘　　要：针对超声波换能器特点设计了一种基于现场可编程逻辑门阵列(FPGA)的超声波换能器测试平台,对换能器的参数进行测试以达到换能器一致性匹配的效果。首先,需求分析阶段明确换能器的测试项及完成测试电路的设计,分析了测试程序中的各项指标,用虚拟仪器作为人机交互界面,利用虚拟仪器中的波形处理函数得到换能器的谐振频率与反谐振频率,通过谐振频率与反谐振频率计算出机械品质因数,最终实现了换能器各项参数的测试。According to the characteristics of ultrasonic transducer,a ultrasonic transducer test platform was designed with FPGA. The items that need to be tested were determined and the relevant circuits were designed.The indexes in the testing program were analyzed. With virtual instrument LabVIEW as the human-computer interface,the resonance frequency and anti-resonance frequency of the transducer were obtained the waveform processing function,thereby the mechanical quality factor was calculated and finally the parameters of the transducer were tested.

关 键 词：超声波换能器 现场可编程逻辑门阵列 虚拟仪器 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TB559[自动化与计算机技术—控制科学与工程]