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此仪器是用脉冲高压放电,来记录钢球的各种运动轨迹.它与闪频照像相比,具有操作方便、设备简单、成本低、直观性好等特点,宜用于课堂演示实验.该仪器在原来基础上,做了较大的改进,增加了同时记录平抛与自由落体两种轨迹的装置和防止高压对操作者电击的保护电路.现介绍如下,供参考.仪器外观和结构分别如图1和图2所示.它可分为机械、电路、控制面板三部分.
This instrument uses pulsed high-voltage discharge to record the various movement trajectories of the steel ball. Compared with the flash frequency photography, it has the advantages of convenient operation, simple equipment, low cost and good intuitiveness. It is suitable for classroom demonstration experiments. On the basis of the original, the instrument has been greatly improved, with the addition of a device that simultaneously records two types of trajectories of flat-throwing and free-fall, and a protection circuit that prevents high-voltage shocks to the operator. This is now presented for reference. Instrument appearance and structure As shown in Figure 1 and Figure 2, respectively, it can be divided into three parts: machinery, circuit, and control panel.