激光除锈过程中的等离子体强度研究  

Study about plasma intensity of laser derusting

作　　者：张署光[1] 张磊[1] 余天宇[1] 张满奎[1] 

机构地区：[1]江苏大学机械工程学院,镇江212013

出　　处：《激光技术》2013年第1期56-58,共3页Laser Technology

基　　金：国家自然科学基金资助项目(51175232);江苏省研究生培养创新工程资助项目(CXZZ_0546);江苏省高校自然科学研究面上资助项目(11KJB460001)

摘　　要：为了实时监测和控制激光除锈过程,采取利用光电二极管检测等离子体的光强信号,并用示波器将其转换为电压信号的方法,得到了等离子体峰值电压信号随激光能量、激光冲击次数变化的曲线图。结果表明,根据等离子体电压信号峰值大小变化趋势可以确定除锈阈值,也可以判断激光除锈是否干净。In order to monitor and control laser derusting process in real time, the light intensity of plasma was detected with a photodiode, and the light signal was transformed into voltage signal with an oscilloscope, so that the curves of peak vohage versus laser energy and laser impact number were obtained. The results show that the derusting threshold and whether the metal surface is cleaned clearly can be determined according to the tendency change of the peak voltage signal.

关 键 词：激光技术 激光除锈 等离子体 实时监测 金属锈蚀 

分 类 号：TN247[电子电信—物理电子学] TN249