Gravitational acceleration measuring method and device thereof



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.




Download Full PDF Version (Non-Commercial Use)

Patent Citations (7)

    Publication numberPublication dateAssigneeTitle
    CN-200959180-YOctober 10, 2007于复生Teaching equipment for measuring gravity accelerated speed
    CN-202331999-UJuly 11, 2012湖州师范学院Freely-falling body demonstrator
    CN-203118296-UAugust 07, 2013冯馨乐一种激光打点计时器
    CN-204045082-UDecember 24, 2014郑州学生宝电子科技有限公司一种物理教学中重力加速度实验教具
    CN-204667723-USeptember 23, 2015黄乐童Acceleration of gravity measuring device
    US-2010221692-A1September 02, 2010Robert William Lally, Katherine Anne LallyEducational Pendulum
    WO-2011063483-A1June 03, 2011União Brasileira De Educação E Assistência - Mantenedora Da Puc RsAparato modulador de forças compreendendo bio esfera magnética submersa e método estabilizador de matéria

NO-Patent Citations (1)

    朱端兴,曹正东: "落球法测定重力加速度实验的改进", 《大学物理实验》

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