介绍了一种光电效应实验智能型装置,阐述了利用单片机系统组建一个智能仪器实验系统的实现方案;给出了系统总体框图和软件程序流程图;阐述了实验测量的工作原理;提出同时用零点法和拐点法测量的方案;解决因测量时间长、环境的变化对仪器测量精度的影响问题;避免主观随意性,减小实验误差,减少微弱光电流受干扰的几率,达到即快速又准确的测量目标。 This paper introduces a kind of intelligent device of photoelectric effect experiment, elaborates the realization scheme of a smart instrument experimental system by using SCM system, gives the overall system block diagram and flow chart of software program, expounds the working principle of experimental measurement, Law and the inflection point method to measure the program; to solve the long measurement time, environmental changes on the instrument measurement accuracy problems; to avoid subjective arbitrariness, reduce experimental error, reduce the probability of weak photocurrent interference, to achieve fast and accurate Measuring target.