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中文摘要：
激光除锈是一种利用激光去除金属锈蚀物的新颖去锈方法,激光除锈过程的实时监测系统是检测激光除锈效果的关键技术。采用价格便宜的光电二极管探测器件,检测除锈过程中激光诱导等离子体的光强信号,并利用示波器将其转换为电压信号。根据不同激光能量辐照时峰值电压的变化可确定清洗阈值,根据同一点多次辐照的峰值电压变化可判断锈蚀层是否清除干净。这种检测方法快速有效、操作简单且成本低,为分析和控制激光除锈工艺提供了依据。
英文摘要：
Laser derusting is a novel method removing metal corrosion by laser.It is key technology to develop a new real-time monitoring system for evaluating the derust effect.We use a low-cost photodiode to monitor the light intensity of laser induced plasma,which transform the light signal into the voltage signal by oscilloscope.We can obtain the derusting threshold according to tendency chart of the peak voltage at different laser pulse energy.Furthermore,we can evaluate whether the metal surface has been cleaned by checking the peak voltage of repeated laser radiation at the same impact point.This rapid and effective method provides the basis for analysis and control of laser derusting technology,which has the merits of low cost and high efficiency.
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