美刊介绍了一种新型的利用迈斯纳效应[注]由抗磁斥力而获得转矩的步进电机。该电机包括转子和一个处在非磁性壳体内的定子(图1),转子轴安装在轴承上,由卡环轴向限位,定子的圆周上均匀的分布着电磁铁,它们用磁性的软质套筒周向连接,从 The American Journal introduced a new type of stepper motor that uses the Meissner effect to obtain torque from its repulsion force. The motor includes a rotor and a stator (Figure 1) in a non-magnetic housing. The rotor shaft is mounted on the bearing and is axially restrained by a snap ring. Electromagnets are uniformly distributed on the circumference of the stator, and are magnetically soft Quality sleeve connected circumferentially, from