自制平面打点计时器,主要由自携式紫外LED频闪光源和光影画布组成。实验无需在暗室中进行,当光源经过光影画布时,可在光影画布上留下一串反映物体运动规律的点迹。装置结合了传统频闪摄影技术和打点计时器的优点,可广泛应用于自由落体、平抛运动、简谐运动等一维和二维运动规律的研究。 Homemade plane RBI timer, mainly from the portable UV LED flash light source and light and shadow canvas composition. Experiments do not need to be carried out in a dark room. When the light passes through the light and shadow canvas, a series of spots that reflect the movement of the object can be left on the light and shadow canvas. The device combines the advantages of traditional strobe photography technology and timekeeping timer, and can be widely applied to the study of one-dimensional and two-dimensional motion of free fall, flat throw and simple harmonic motion.