摘要
高速摄像和数据采集是研究焊接过程中电弧、熔滴过渡或熔池等动态行为的重要技术手段.采用同步控制拍摄高速摄像和数据采集的技术,建立了高速图像和工艺参数同步记录与分析系统.系统包括高速摄像机、同步信号发生器、高速数据采集装置及图像与波形同步播放软件.同步信号发生器可适用于20～200000帧/s的高速摄像同步与触发控制.基于PC的数据采集装置,在200kHz采样频率下可实现4路焊接参数的同步采集.结果表明,系统可作为焊接材料、工艺性能、过程控制等研究中对动态过程进行记录与分析的有力工具.
High speed camera and data acquisition are important technology to research the dynamic behavior of arc, metal transfer or weld pool in welding process. A synchronized record and analysis system for high speed images and process parameters was established based on the synchronized control for high speed camera shooting and data acquisition. The system included high speed camera, synchronous signal generator, high speed data acquisition device and synchronized player software for high speed images and waveforms. The dedicated synchronous signal generator is adequate for synchronizing and trigging high speed camera from 20 to 200,000 frames/s. The PC based data acquisition device is able to take 4 welding parameters synchronously at 200 kHz. It was demonstrated by the experiments of several typical welding processes that the system was a powerful facility for recording and analyzing the dynamic process in research on welding material, welding process, process control and stability.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2010年第3期69-72,76,共5页
Transactions of The China Welding Institution
基金
北京市自然科学基金资助项目(3093017)
关键词
高速摄像
数据采集
同步记录与分析
焊接
high speed imaging
data acquisition
synchronized record and analysis
welding
