摘要
应用法拉第电磁感应定律推导出非磁性旋转导体盘的转动衰减方程;定义并测量了导体盘的摩擦阻尼系数和电磁阻尼系数;分析研究了电磁阻尼系数与励磁电流平方间的关系.
The regression equation of angular velocity of a nonmagnetic revolving metal plate is deduced by using the Faraday＇ s law of induction. Then, both frictional damping coefficient and electromagnetic damping coefficient are defined and measured. Lastly, the relationship between the electromagnetic damping coefficient and the value of exciting current is analyzed.
出处
《大学物理》
北大核心
2016年第12期30-33,共4页
College Physics
关键词
旋转导体盘
摩擦阻尼系数
电磁阻尼系数
转速衰减方程
revolving metal plate
frictional damping coefficient
electromagnetic damping coefficient
regression equation of angular velocity
