| 摘要 |
PURPOSE:To make a device small in size and to enable it to correspond to multi-channel by making a rotary transformer transmitting the signal of the magnetic head of a rotary body structure, whose outer circumference the magnetic head is loaded and fixed to, the cylindrical form whose axis is the same state as a central axis. CONSTITUTION:The rotary transformer 10 is made to be the cylindrical form. Therefore, the transformers whose form are the same can be used in each channel for transmitting the signal of the rotary transformer 10 and transmission characteristic can be uniformed between the channels. Besides, in case of making it for the multi-channel, it can correspond to that by accumulating the transformers in the concentric cylindric state. By forming a ditch 1c at the central axis 1a and using it, the external diameter of the rotation supporting part of the inner ring of a bearing 1 can be made small. Besides, by combining it with the cylindric rotary transformer 10, the device can be made small in size. |
