基于AD5933的电磁金属探伤电路设计  

Design of electromagnetic metal flaw detection system based on AD5933

作　　者：杨鸣[1] 何敏[1] 施伟锋[1] 马骏[1] 

机构地区：[1]上海海事大学物流工程学院,上海201306

出　　处：《大连海事大学学报》2014年第4期89-92,共4页Journal of Dalian Maritime University

基　　金：上海市教委科研创新重点项目(12ZZ155);高等学校博士学科点专项科研基金资助项目(20123121110003);上海市教委重点学科(J50602)

摘　　要：设计电磁探伤电路,该电路体积小、操作简单、成本低,其中阻抗芯片AD5933由单片机控制以产生激励信号并解调检测信号.同时,设计控制软件,该软件具有激励频率设置、数据读取模式设置、通道设置等功能.实验结果表明,该电路可以探测样品是否存在缺陷及缺陷的大概位置,在未来的船舶港口机械金属结构探伤中具有实用潜能.An electromagnetic flaw detection system based on AD5933 was proposed,which had advantages of small volume,simple operation and low cost,and impedance chip AD5933 was controlled by single chip microcomputer so as to produce excitation signal and demodulate detection signal.Meanwhile the control software was designed,which had functions of excitation frequency setting,data read mode setting and channel settings. Experiment results show that the system can imply whether the test samples have defects or not,and identify the probable locations of flaws. The system has practical potential in metal flaw detection of the ship port machinery in the future.

关 键 词：电磁探伤 电路设计 AD5933 单片机 阻抗分析 

分 类 号：TG115.28[金属学及工艺—物理冶金]