BRUSHLESS MOTOR FOR MAGNETIC RESONANCE EQUIPMENT AND CONTROL METHOD OF THE SAME

摘要

PURPOSE: A brushless motor is provided to prevent noise from being generated in a magnetic resonance image due to a flame generated through mechanical friction by using a brushless motor. CONSTITUTION: A brushless motor comprises a rotor(220) having field winding(210), a stator(240) which is located in the circumference of a rotor, and a detection sensor(260). The stator comprises armature winding(230). The detection sensor measures the electric current direction and rotation angle of the field winding and the armature winding. The brushless motor is vertically arranged to the main magnetic field direction generated in a bore of the magnetic resonance device. The field winding and the armature winding are arranged to a radial shape along the circumference of the stator and the rotor. The field winding and the armature winding are arranged in a row.