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    • 1. 发明授权
    • Apparatus and method for measuring temperature profile
    • 用于测量温度曲线的装置和方法
    • US4502793A
    • 1985-03-05
    • US443989
    • 1982-11-23
    • Kenneth B. SmithDerek W. Adams
    • Kenneth B. SmithDerek W. Adams
    • G01J5/10G01J5/00G01J5/08
    • G01J5/0022G01B15/02G01B21/045G01J5/08G01J5/0846G01J2005/0048G01J2005/0081
    • A camera contains a row of diodes sensitive to infrared radiation and mounted on a turntable for rotation about the optical axis of the camera. The signals from the diodes provide a temperature profile of a band across the width of a strip of hot rolled steel moving in a direction orthogonal to the optical axis and to the length of the row of diodes. Since the diodes are low accuracy devices, their measurements are compensated by normalizing co-efficients derived by comparison with the signal provided by an optical pyrometer viewing the central part of the steel strip in the region of the optical axis. To enable all diodes to be calibrated, calibration is effected with the turntable rotated 90.degree. to align all the diodes with the central part of the strip as viewed by the pyrometer. The camera may be mounted on one arm of a C-frame having X-ray tubes in an arm and X-ray detectors in the other arm for the purpose of measuring the thickness profile of the strip in known way. The compensated temperature measurements can then be used to correct the corresponding thickness measurements to take account of the variation in apparent thickness with density, and hence temperature.
    • 相机包含一排对红外线辐射敏感的二极管,并安装在转盘上,以绕相机的光轴旋转。 来自二极管的信号提供了在与光轴正交的方向上移动的热轧钢带的宽度和带状二极管的长度之间的带的温度分布。 由于二极管是低精度器件,所以它们的测量通过与通过在光轴的区域中观察钢带的中心部分的光学高温计提供的信号相比较而导出的系数归一化来补偿它们的测量。 为了使所有的二极管都能被校准,校准是通过转盘旋转90°来实现的,以使所有的二极管与高温计所看到的带的中心部分对齐。 相机可以安装在具有臂中的X射线管和另一臂中的X射线检测器的C形框架的一个臂上,目的是以已知方式测量条的厚度分布。 然后可以使用补偿的温度测量来校正相应的厚度测量值,以考虑到密度随温度变化的表观厚度。