| 高压干法水下熔化极惰性气体保护焊电弧声数据采集与分析 |
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| 引用本文： | 李卫强,朱加雷,焦向东,乔溪,贾存锋,马正住.高压干法水下熔化极惰性气体保护焊电弧声数据采集与分析[J].上海交通大学学报,2015,49(3):323-325. |
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| 作者姓名： | 李卫强 朱加雷 焦向东 乔溪 贾存锋 马正住 |
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| 作者单位： | (1．北京石油化工学院 机械工程学院，北京 102600；2.北京工业大学 机械工程与应用电子技术学院，北京 100124) |
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| 基金项目： | 国家自然科学基金项目（51205026，51175046），北京市属高校创新团队建设提升计划（IDHT20130516）资助 |
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| 摘 要： | 摘要： 设计了高压干法水下熔化极惰性气体保护焊（MIG）电弧声采集硬件系统，研究分析了不同环境压力对声音信号的影响规律，并进行了不同压力环境下的传声器校准；采用LabVIEW软件编程，同步采集焊接过程中的电弧声和电流、电压信号，在时域和频域两方面分析高压干法水下MIG焊接过程中不同环境压力下的电弧声信号特征，为电弧声在高压干法水下MIG焊接质量监控中的应用奠定基础.
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| 关 键 词： | 高压惰性气体保护焊 传声器校准 同步采集 特征分析 |
| 收稿时间： | 2014-05-20 |
Arc Sound Acquisition and Analysis of Hyperbaric Underwater MIG Welding |
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| LI Wei qiang,ZHU Jia lei,JIAO Xiang dong,QIAO Xi,JIA Cun feng,MA Zheng zhu.Arc Sound Acquisition and Analysis of Hyperbaric Underwater MIG Welding[J].Journal of Shanghai Jiaotong University,2015,49(3):323-325. |
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| Authors: | LI Wei qiang ZHU Jia lei JIAO Xiang dong QIAO Xi JIA Cun feng MA Zheng zhu |
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| Institution: | (1.School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617， China; 2.Mechanical Engineering and Applied Electronics Technology Institute, Beijing University of Technology, Beijing 100124， China) |
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| Abstract: | Abstract： The hardware of arc sound acquisition system in hyperbaric underwater MIG welding was designed, the influence of different pressure to voice signal was studied, and the microphone was calibrated according to different pressures. Based on the LabVIEW software programming, the arc sound signal, welding current and arc voltage during welding were asynchronously acquired and the signal feature of arc sound in the different pressures was analyzed both in time domain and frequency domain, which lay the foundation for the application of arc sound signal in hyperbaric underwater MIG welding quality control. |
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| Keywords: | hyperbaric metal-inert gas(MIG) welding microphone calibration synchronous acquisition feature analysis |
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