Gravitational acceleration measuring method and device thereof

一种重力加速度测量方法及其装置

Abstract

The invention relates to the field of teaching equipment, and aims to provide a gravitational acceleration measuring method and a device thereof. According to the gravitational acceleration measuring method and the device, a laser transmitting device replaces a traditional ticker timer, thereby realizing no-contact ticking, reducing effect of a friction resistance of a traditional tape belt, and realizing more accurate experiment result. The gravitational acceleration measuring method has beneficial effects of simple structure and convenient operation. Ticking on a falling object which is coated with fluorescent powder is realized through the laser transmitting device, thereby realizing visual and obvious phenomenon and high stability. The gravitational acceleration measuring method is suitable for self research and self experience of a student, thereby improving persuasiveness in teaching. The falling object can automatically return to normal after a certain time period. High repeatability is realized, and furthermore consumable materials are greatly saved. Through a strange optical phenomenon of making the falling object emit light by means of the laser transmitting device, attention of the student can be focused to the experiment, thereby improving studying enthusiasm of the student and improving teaching effect.
本发明涉及教学设备领域,目的在于提供一种重力加速度测量方法及其装置,所述一种重力加速度测量方法及其装置,采用激光发射装置取代传统的打点计时器,实现无接触“打点”,减少传统纸带摩擦阻力的影响,使得实验结果更加准确。本发明的有益效果在于:结构简单,操作方便,涂有荧光粉的下落物在下落过程中通过激光发射装置实现打点,现象直观、明显,稳定性好,适合让学生自主研究,亲身体验,提高教学说服力,下落物能在一段时间后自动恢复正常,可重复性强并大大节省实验耗材,引入激光发射装置能让下落物发光这样一个奇特的光学现象,能将学生的注意力集中到实验中,激发学生的学习热情,提高教学效果。

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-106019396-AOctober 12, 2016南京信息工程大学Gravitational acceleration non-horizontal measurement system