机车关键部位焊缝随车检测的开发  

Accessory Detection Develop for the Locomotive Key weld Parts

作　　者：马晓明[1] 胡继胜[1] 

机构地区：[1]大连交通大学交通运输学院,辽宁大连116028

出　　处：《仪器仪表用户》2014年第3期23-25,29,共4页Instrumentation

摘　　要：目前机车的关键部位焊缝裂纹没有准确的预测方法,本文采用涡流检测技术,应用DDS芯片,开发出一套机车焊缝随车检测装置。该装置能够产生频率和相位可控的信号激励涡流传感器,同时能够对涡流传感器二次绕组的反馈信息进行幅值和相位分析,并能将反映焊缝状态的信息传送到机车的故障诊断系统中完成故障诊断。he weld crack of locomotive＇s key part don＇t have accurate forecasting method,this paper uses the eddy current testing technology,application of DDS chip,and develop all testing device with the moving locomotive, the device can produce signal which frequency and phase controlled incentive eddy current sensor,at the same time it can analysis the amplitude and phase of feedback information by the secondary winding of eddy current sensor produce,and can transfer the weld information to locomotive fault diagnosis system for the fault diagnosis of locomotive fault diagnosis.

关 键 词：涡流检测 焊缝 激励信号 幅相检测 

分 类 号：TM154.2[电气工程—电工理论与新技术]