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J2438型“密立根油滴仪”,是高中的一种物理实验仪器(后改为选学),可用来观察电荷在重力场、电场中运动的情况,验证电荷的量子性与测定基本电荷之用。 仪器由油滴室、测量显微镜、油滴照明系统、直流稳压电源和分立的控制盒、水准泡、喷油器等组成。我们在使用此仪器前碰到不少问题:①照明用小电珠不亮;②没有喷油孔;③调不到水平;④视场太亮;⑤看不到油摘。
The Model J2438 “Milligo Oil Drop Tester” is a physics experiment instrument for high schools (later changed to elective school). It can be used to observe the movement of charge in the gravitational field and electric field, verify the quantum of charge and determine the basic charge. use. The instrument consists of an oil drop chamber, a measuring microscope, an oil drop lighting system, a DC regulated power supply and a discrete control box, a standard bubble, and an injector. We encountered a lot of problems before using this instrument: 1 small beads for lighting did not shine; 2 did not have an oil hole; 3 could not adjust the level; 4 the field of view was too bright;