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1. 发明申请

WO2003002960A1 TEMPERATURE PROFILE DETERMINATION 审中-公开
标题翻译：温度剖面测定
公开(公告)号：WO2003002960A1
公开(公告)日：2003-01-09
申请号：PCT/GB2002/002957
申请日：2002-06-27
申请人： ISIS INNOVATION LIMITED , JONES, Paul , DUNCAN, Stephen, Richard , DANIEL, Ronald
发明人： JONES, Paul , DUNCAN, Stephen, Richard , DANIEL, Ronald
IPC分类号： G01J5/00
CPC分类号： G01J5/0003
摘要： Apparatus for determining the temperature profile of the surface being sprayed or otherwise treated, the apparatus comprising four electric arc spray guns (1) spraying molten steel. The guns (1) are connected to a six-axis industrial robot (2) which is adapted to move them over the surface of the ceramic substrate.(3). The metal deposited by the spray builds up a metal shell referred to as the sprayform. The temperature profile of the sprayform surface (3) is recorded periodically by a thermal imaging camera (4) positioned directly above the surface (3). When the field of view of the camera (4) is not obscured by the robot (2), the arc spray guns (1) or their cables (5), the thermal image of the whole sprayform surface (3) can be recorded. However, when the arc spray guns (1), their cables (5) and/or the robot (2) are positioned between the thermal camera (4) and the sprayform surface (3), at least part of sprayform surface (3) is obscured relative to the camera's field of view, with the result that large areas of the resultant thermal image may not be representative of the temperature of the sprayform surface (3). The apparatus includes a pruning filter for receiving each pixel of an image captured by the camera (4) and for applying at least a lower temperature limit to it so as to reject or disregard any pixels determined to have a temperature less than the lower temperature limit. The apparatus may also comprise storage means for storing a master image or array comprising temperature information relating to each of a plurality of pixels intended to be representative of an unobscured image of the surface, and means for updating the master image when the camera (4) captures a new thermal image of the surface by replacing the stored temperature information with updated temperature information obtained from the new thermal image for each of the pixels not rejected or disregarded by the filter means. Alternatively, or in addition, the apparatus may include a Kalman filter or the like which may be used to predict the temperature profile of the surface using the pixels not rejected or disregarded by the pruning filter.
摘要翻译：用于确定被喷涂或以其他方式处理的表面的温度分布的装置，该装置包括四个电弧喷枪（1）喷射钢水。枪（1）连接到六轴工业机器人（2），其适于将它们移动到陶瓷基板的表面上。通过喷雾沉积的金属构成了称为喷射模板的金属壳。通过位于表面（3）正上方的热成像相机（4）周期性地记录喷射表面（3）的温度分布。当摄像机（4）的视野不被机器人（2）遮挡时，可以记录电弧喷枪（1）或其电缆（5），整个喷射表面（3）的热图像。然而，当电弧喷枪（1），其电缆（5）和/或机器人（2）位于热摄像机（4）和喷射表面（3）之间时，至少部分喷射表面（3）相对于照相机的视场模糊，结果是所得热图像的大面积可能不代表喷射表面（3）的温度。该装置包括修剪过滤器，用于接收由照相机（4）捕获的图像的每个像素，并且向其施加至少较低的温度限制，以便拒绝或忽视被确定为具有低于下限温度的温度的任何像素。该装置还可以包括用于存储主图像或阵列的存储装置，该主图像或阵列包括与旨在代表表面的视野图像的多个像素中的每一个有关的温度信息，以及用于当相机（4））更新主图像时，通过用未被滤波器装置拒绝或忽略的每个像素的新热图像获得的更新的温度信息替换存储的温度信息来捕获表面的新热图像。或者或另外，该装置可以包括卡尔曼滤波器等，其可以用于使用未被修剪滤波器拒绝或忽略的像素来预测表面的温度分布。

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