摘要
基于当前X射线管运行状态难以判断的问题,提出一种基于改进时频分析的X射线管无损检测技术。首先采用加速传感器采集X射线管特征信号,利用LabVIEW软件去除没有关联的信号,利用改进的时域分析方法获取X射线管信号的不同类别特征。然后根据X射线管特征信号数据源的不同,利用监控节点对其展开规则匹配,完成X射线管信号类别特征的分类识别,实现无损检测。实验结果表明:该技术可清晰分析出X射线管旋转阳极信号在整个周期内的频率波动变化情况,峭度值可感应幅值的波动变化,准确反映异常信号结果,在精度高于94%的情况下完成X射线管无损检测。
Based on the difficulty of judging the current operating status of X-ray tubes,it studies the non-destructive testing technology of X-ray tubes based on improved time-frequency analysis.The acceleration sensor is used to collect the characteristic signals of the X-ray tube,the LabVIEW software is used to remove the unrelated signals,and the improved time domain analysis method is used to obtain the different types of characteristics of the X-ray tube signal.According to the different data sources of the characteristic signal of the X-ray tube,the monitoring node is used to match its expansion rules to complete the classification and recognition of the signal category characteristics of the X-ray tube,and realize non-destructive testing.Experimental results show that the technology can clearly analyze the frequency fluctuations of the X-ray tube rotating anode signal during the entire cycle.The kurtosis value can induce the amplitude fluctuations and accurately reflect the abnormal signal results.The accuracy is higher than 94%.In case,it complets the non-destructive inspection of the X-ray tube.The method in this paper has certain application value and is worthy of promotion.
作者
徐海明
Xu Haiming(Wenzhou Hospital of Traditional Chinese Medicine,Zhejiang University of Chinese Medicine,Zhejiang Wenzhou,325029,China)
出处
《机械设计与制造工程》
2023年第12期87-92,共6页
Machine Design and Manufacturing Engineering
关键词
时频特征分析
X射线管
无损检测
傅里叶变换
峭度
time frequency characteristic analysis
X-ray tube
nondestructive testing
Fourier transform
kurtosis
