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一、绪言 为了对快速现象进行外貌的研究、速度的测量和细节的分析,要求用一定的时间间隔对现象进行连续摄(井彡)。最初,人们只能用多台相机对准一个目标,笈电子学方法依次操纵各相机中的快门,从而记录目标在不同时间内的变化过程。然而这种方法所获照片的数量与相机数量相同,使用上很不经济。而且随着摄形频率的提高,对控制线路提出
I. INTRODUCTION In order to study the appearance of rapid phenomena, the measurement of the velocity and the analysis of the details require that the phenomena be continuously photographed at a time interval. Initially, one could only aim at one target with multiple cameras, and the electronics method in turn manipulated the shutters in each camera to record the change in the target over time. However, the number of photos obtained by this method is the same as that of the camera, which is not economical to use. And with the improvement of the frequency of photography, put forward to the control circuit