FABRICATION OF A MAGNETIC DRIVE UNIT FOR THAT MOVES IN THE SAME DIRECTION OF THE EXCITING MAGNETIC-FIELD

This paper presents two kinds of drive units in which the axes of rota tion are parallel to the exciting outer magnetic field. The first kind is a magnetic-pole type using a silicon steel sheet to provide radial components of field strength. The second kind is a paddle type using the vibration of an amorphous ribbon to induce rotational forces. The drive units were developed to improve the freedom of movement of sensi ng devices. By combining the developed units with the conventional one s, it will be possible to control the movement of devices freely by ma nipulating the external magnetic field. In this paper, the basic chara cteristics of the drive units and their applicability are discussed.