此装置的主要构造如图1所示,由五个部件构成:1是用来作为光标尺的普通40w日光灯管,外包一层刻有厘米标度的照相胶卷黑衬纸,用来量度位移。2是用来承接“落体”的缓冲网袋。3是高度为130cm的支架。4是电磁铁,用来吸吊落体盒。5是等时发出闪光信号的落体,构造如图2所示,共有八个部件组成:1是内部为90×80×30 The main structure of the device is shown in Figure 1, which consists of five components: 1 is a common 40w fluorescent tube used as a light gauge, coated with a centimeter scale photographic film black backing paper to measure the displacement. 2 is used to undertake “fall body ” buffer bag. 3 is a height of 130cm stent. 4 is the electromagnet used to suck the fall box. 5 is the flash of isochronous signals issued by the fall, the structure shown in Figure 2, a total of eight components: 1 is the internal 90 × 80 × 30