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Wheel Profile Dynamic Inspection System Based on Slit Diode Laser

机译:基于狭缝二极管激光的车轮型材动态检测系统

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Flange Height and Flange Thickness are vital parameters for train wheels. Usually, they are manually measured by wheel vernier after train stopped. This article introduces a dynamic wheel inspection system. Pulsed slit diode lasers project onto wheel tread while train is in motion, CCD cameras record light-section images of wheel profile. Geometric parameters and profile of wheel are measured on basis of image processing. This paper introduces measuring principle and structure of this inspection system, analyzes influences resulted from laser parameters and environment, designs instantaneous high-powered slit diode laser and narrowband optical filter according to ±0.2mm accuracy requirement and environment situation.
机译:法兰高度和法兰厚度是火车车轮的重要参数。通常,在火车停止后,它们由Wheel Vernier手动测量。本文介绍了一种动态轮检查系统。脉冲狭缝二极管激光器突出到车轮胎面上,虽然火车在运动中,CCD摄像机记录了轮廓的灯段图像。基于图像处理测量轮的几何参数和轮廓。本文介绍了该检测系统的测量原理和结构,分析了激光参数和环境所产生的影响,根据±0.2mm精度要求和环境情况设计瞬时高功率狭缝二极管激光器和窄带滤光片。

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