摘要
利用光电原理,对常用的计时工具——电子秒表实现自动控制,能有效地消除手动操作所带来的误差.它可广泛应用于对运动物体的速度、加速度的测量实验,还可用来验证牛顿第二定律、机械能守恒等物理实验,同时也适用于对时间测量精度要求较高的场合。
In order to deduce artificial errors,in this paper,we design a novel stopwatch employing photoelectric ef- fect .This interesting tool can be widely used in experiments of measuring velocity and /or acceleration,the confirming of the second Newton s law and Law of conservation of mechanical energy.It can also be used on the occasions requir- ing high accuracy of time.
出处
《绍兴文理学院学报(自然科学版)》
2004年第10期29-31,共3页
Journal of Shaoxing College of Arts and Sciences