Under the programming environment of LabVIEW

a set of arc welding parameters measurement and control system is developed by using NI USB-6215 multi-function data acquisition card

which can control the output of DC

pulse

sinusoidal wave and other required waveforms. Meanwhile

current and voltage signals in the welding process can be collected and saved

and their waveforms can be displayed in real time. The saved signal can be played back and analyzed by filtering

statistics

UI and so on. The system provides a more intuitional basis for analyzing the entire welding process

realizing waveform control and energy control

and is beneficial to the technology testing and optimization of the welding process.