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首次提出用一台面阵ＣＣＤ摄像机测量运动高温钢坯的三维尺寸．建立了测量系统的数学模型，分析了系统误差与结构参数之关系，求出俯视角θ的最佳值范围．
For the first time, an area array CCD camera is proposed to measure the three-dimensional size of high temperature billet. The mathematical model of the measurement system is established. The relationship between the system error and the structural parameters is analyzed, and the optimal range of the angle of view θ is obtained.