A superconducting stepping motor with pulsed-field magnetization for a pump

Pulsed-field magnetization is applied to a superconducting stepping motor to improve its rotor dynamics. The superconducting motor is composed of a superconducting rotor, a stator with eight electromagnets, a computer and a pulsed-power supply. Pulsed-field is applied to the superconducting rotor before the rotation. Moreover, the superconducting stepping motor is then applied to a pump that can function at extremely low temperatures. Pulsed-field magnetization is also applied to the pump motor in order to improve the performance of the pump. The static and dynamic characteristics of the motor and the pump are discussed.