热轧表面检测系统光源设计与应用

作为检测系统的重要组成部分——光源正常工作是表面检测系统的基础保证。在高温环境下,若光源离带钢距离较近,热辐射及对流将导致光源设备的损坏;若距离较远又不能保证带钢表面的照度要求。因此,如何合理控制光源表面温度,保持合理距离的情况下保证带钢表面照度需求,是高温条件下光源系统设计的重点。详细分析了高温条件下光源的距离与光源接收到的热辐射、光源照度之间的关系,并设计出适用于热轧产线表面检测系统的光源照明设备。经现场使用,证明该光源设计方法是有效的。

Design and application of the light source for hot strip surface inspection system

As an important part of the inspection system,a light source in normal condition is the basic guarantee of the system.In a high temperature environment,if the light is too close to the strip steel,the light will be damaged by the radiation and convection,and if the light is far from the strip steel,the illumination will be unable to satisfy the requirements.Therefore,how to control the light surface temperature and make the light in a reasonable distance range in a high temperature environment will be the key in the light source design.In this paper,the relationship between the light source distance,thermal radiation received by the light source and the illumination was analyzed.The light source which is suitable to the hot strip surface inspection has been designed.The application of the light source at the worksite has proved that the design method is correct.