LabVIEW平台中利用小波分析实现焊接电流信号的去噪

Using wavelet analyzing to denoise welding electrical signals in LabVIEW platform

焊接过程是一个复杂多变的过程,实现焊接自动跟踪的方法也有很多种,其中当前研究的重点就是利用旋转电弧传感器来实现自动跟踪。由于旋转电弧电流信号中存在许多噪声,因此,实现旋转电弧自动跟踪的关键就是如何正确地提取焊接电流信号。在此利用LabVIEW作为开发平台,通过调用Matlab节点的方法,对采集到的焊接电流信号进行小波去噪处理,实现焊接电流信号的还原。

The welding process is very complex and variable.There are many methods to track weld seam,and rotating arc sensor is one of the most available ones.Because of the noises mixing in electrical signals,the most important thing to achieve this method is how to get the electrical signal correctly without any noise.In this paper,the method of wavelet denoise is used to refine the electrical signal, which is based on the LabVIEW platform.