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本文对“74—1”弹道相机单台定向精度进行了较详细的分析计算,并对其结果进行了初步讨论。 74—1弹道相机用于测量炮弹等快速飞行体的轨迹时,目标在空中的定位精度是由单台相机的定向精度、交绘测量的布站方式及控制系统同步精度所决定的,因此单台相机的定向精度是衡量弹道相机的重要质量指标之一。这里,根据仪器的设计数据,零部件加工装配水平及仪器总装校时的测试方法,对单台相机的定向精度作一分析计算。
In this paper, a more detailed analysis and calculation of the single precision of the “74-1” ballistic camera was carried out, and the result was discussed preliminarily. When the 74-1 ballistic camera is used to measure the trajectory of a fast-flying projectile such as a projectile, the positioning accuracy of the target in the air is determined by the orientation accuracy of a single camera, the distribution method of cross-survey measurement and the synchronization accuracy of the control system. Therefore, The camera’s orientation accuracy is one of the most important quality indicators for ballistic cameras. Here, according to the design data of the instrument, assembly and assembly of parts and components, and the test method of instrument assembly, a single camera is used to analyze and calculate the orientation accuracy.