偏心振动式磁感应测转速法  

Eccentric Vibrating Induction Measuring Speed Method

作　　者：安瑞[1] 丁益民[1] 曾雄志[1] 李胜泰[1] 龚本超[1] 

机构地区：[1]湖北大学,湖北武汉430062

出　　处：《大学物理实验》2013年第3期16-17,35,共3页Physical Experiment of College

基　　金：湖北省教育厅教学研究项目(2010161)

摘　　要：偏心振动式磁感应测转速法是利用偏心转动、电磁感应的原理,将转动的频率经过一系列简易操作转化为电信号的频率后再通过示波器测出转速的方法。该测量方法物理思想简单,实验操作方便,并具有测量精确高等优点。The method is aimed to measure speed. It combined with mechanical, magnetic, electric into an organic whole, and using eccentric rotation, electromagnetic induction principle, the frequency of the rotation after a series of simple operation is transform into electrical signal frequency which can be seen by the oscilloscope. The experimental results prove that the accuracy is very high,and its operation is simple, the design is the embodiment of concept of physical thought and principle, and the method are innovative in technology and application.

关 键 词：转速测量 偏心转动 机械振动 电磁感应 

分 类 号：O4-33[理学—物理]