脉冲熔化极气体保护焊多信息采集分析系统

Synchronizing Multi-data Acquisition and Analysis System for Gas Melted Arc Welding-Pulse

设计了基于虚拟仪器技术(LabVIEW)的脉冲熔化极气体保护焊的电信号和熔滴过渡多信息同步采集系统.利用高速数字摄像技术,记录熔滴过渡过程,同时采集焊接过程的电流、电压信号,并将各个信息传输到PC机中,实现数据的保存.通过综合分析熔滴过渡图片与对应电信号的关系,可为控制熔滴过渡形式,优化脉冲熔化极气体保护焊接参数提供依据.

Based on the laboratory virtual instrument engineering workbench（LabVIEW） virtual instrument and high speed photography technology, this paper constructed the synchronizing multi-data acquisition and analysis system for GMAW-P. Use one trigger signal to start the electrical parameters sample and at the same time the high speed camera records the droplet transfer process. After the welding, all the data can copy into the PC. By this system, how pulse welding parameters affect metal transfer form was studied on. The system established in this paper provided support for controlling the droplet transfer form and op- timizing the welding parameters.