扇片静止光学视觉现象演示装置及演示方法

Demonstration device for sector static optical visual phenomenon and demonstration method

Abstract

扇片静止光学视觉现象演示装置,由暗室、可调频光源、风扇、照明灯和控制器组成,可调频光源固定在暗室里面的一端,风扇固定暗室里面的另一端;暗室在对着风扇的那面上有一个观察孔,观察者可以通过它观看现象。照明灯安装在暗室的顶部,将控制器和可调频光源、风扇和照明灯相连接起来,通过控制器可以调节风扇的旋转速度、可调频光源的频率和照明灯的开启和关闭,并在控制器上显示速度、频率的数值。使用时,开启风扇,当风扇旋转稳定后,观察者通过观察孔观察扇片,开启可变频光源,通过控制缓慢调节可变频光源的频率,直到观察到扇片静止不动,然后可以在控制上读出此时风扇旋转的速度和可变频光源的频率。
The invention discloses a demonstration device for a sector static optical visual phenomenon, comprising a dark room, a tunable light source, a fan, an illumination lamp and a controller. The tunable light source is fixed at one end in the dark room, and the fan is fixed at the other end in the dark room; and an observation hole is arranged on the side of the dark room opposite to the fan, and an observer can observe the phenomenon through the observation hole. The illumination lamp is installed at the top of the dark room to connect the controller, the tunable light source, the fan and the illumination lamp together, wherein the controller can regulate the rotating speed of the fan, the frequency of the tunable light source and the on-off of the illumination lamp, and values of the speed and the frequency are displayed on the controller. When the demonstration device is used, the fan is started, after the fan rotates stably, the observer observes the fan through the observation hole, starts the tunable light source, slowly regulates the frequency of the tunable light source by the controller until the fan is observed to be motionless, and then the observer can read the rotate speed of the fan and the frequency of the tunable light source at the time on the controller.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle