【摘要】 对磁路设计人员来说 ,精确知道不同种类磁体在不同温度范围内的磁性能随温度的变化情况是非常有用的。本文对Alnico、Sm2 Co17、普通Nd Fe B、低温度系数Nd Fe B四种磁体的可逆磁通在室温～ 12 0℃温度区间内的变化情况及其不同温度区间的平均温度系数进行了详细测量。得到了一些对磁路设计人员较有用的结果。更多还原

【Abstract】 It is very important and useful for a designer to understand the nature of the changes of different kinds of permanent magnets that may occur under a elevated temperature. We measured the magnetic flux and temperature coefficient of Alnico, Sm 2Co 17 , pure Nd Fe B and Nd Fe B sintered magnet with lower temperature coefficient from room temperature to 120℃, and obtained some useful results.更多还原