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Millikan油滴实验是近代物理实验项目,用来验证电荷的分立性和测量电子电量e值,其主要仪器有观察油滴室;给油滴室提供强静电场的直流电源和数字电压表;计时装置和改变油滴电量的放射源。 做实验时,需要测量出被观察的油滴在重力场中运动的速率v_g和在静电场中运动的速率v_g。因此,就需要精确地测量油滴运动一段距离的时间,否则将给实验带来大的误差。
Millikan oil drop experiment is a modern physics experiment project, used to verify the separation of charge and the measurement of electronic power e value, the main instrument observation of oil drop chamber; to the oil drop chamber to provide a strong electrostatic field DC power supply and digital voltmeter; timing Devices and radioactive sources that change the amount of oil droplets. When doing the experiment, we need to measure the observed velocity v_g of the oil droplets moving in the gravitational field and the velocity v_g of moving in the electrostatic field. Therefore, it is necessary to accurately measure the movement of the oil droplets for a certain distance, otherwise it will bring a big error to the experiment.