三、安培环路定理（Ampere’s circuital law）和磁场的旋度(rotor of magnetic field) 1．安培环路定理（Ampere’s circuital law）： 磁感应强度沿任一闭合回路L 的环量，等于穿过以L 为边界的任意曲面的电流强度，...
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This creates a secondary magnetic field around the cans that is repelled by the magnetic field of the rotor, literally ejecting the aluminium cans from the other waste materials.
这样，被转子磁场隔开的铝罐周围就会产生一个二级磁场，实际上也就能将铝罐与其它废料隔离开来。
Like synchronous motor, rotor magnetic pole center line could lagged behind an Angle of that of air-gap magnetic field under the function of load torque (called angular displacement).
步进电动机象同步电动机一样，在负载转矩的作用下，转子磁极中心线将滞后于气隙磁场的中心线一个角度，称为失调角。
The effects of structure, gap magnetic field, rotor thickness, magnetic pole Numbers of rotor and winding layers of stator of the micromotor on it's output torque are discussed in detail.
从微马达结构、气隙磁场、转子厚度、转子写入磁极数和定子绕组的层数对微马达输出力矩的影响进行了分析和讨论。
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