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一、仪器结构本仪器供初中物理教学演示实验使用,分为立式和卧式两种.立式潜水艇浮沉仪,如图1所示.它由玻璃制成,上部1为水仓,安有进、排水管2.进、排水管是一根长度大于10mm、内径小于0.4mm的玻璃毛细管,与水仓侧壁相接的一端靠近水仓底部,在仓内的一端紧挨但又不接触仓底(此毛细管是本仪器的关键部件).安在水仓顶部的力气管3.中部4为工作仓,内装有铁砂,作压仓物,以保持仪
First, the instrument structure The instrument for junior high school physics teaching demonstration experiments, is divided into vertical and horizontal two. Vertical submersible floatation instrument, as shown in Figure 1. It is made of glass, the upper part of the water tank, security Into and out drains 2. The inlet and outlet pipes are glass capillaries with a length of more than 10 mm and an internal diameter of less than 0.4 mm. The end of the tank that is connected to the side wall of the water tank is near the bottom of the water tank. The end of the tank is tight but not Contact with the bottom of the bin (this capillary is a key part of the instrument). The gas tube at the top of the bin 3. The middle part 4 is a working bin with iron sand inside to hold the instrument to hold the instrument.