| 摘要 |
<p>PURPOSE:To produce a small sized device at a low cost and to send and receive a multi-channel signal where an appropriate gap can be set easily, by a method wherein two or more mutually corresponding grooves for winding use and two or more mutually corresponding windings are installed in facing parts of rotary transformers on the rotary side and the stationary side and the signal is sent and received on the rotary side and the stationary side. CONSTITUTION:A stepped part 6a is formed inside a side wall of a lower part drum 6 and a stationary-side rotary transformer 16 is installed at this part. Grooves m1 for two-channel winding use are formed on an upper face of a rotary-side rotary transformer 15 and winding C1 are wound inside the grooves; grooves m2 for three-channel winding use are formed on a lower face and windings C2 are wound inside the grooves. Grooves m3 and windings C3 which correspond to the grooves m1 and the windings C1 are formed in a part where the stationary-side rotary transformer 16 faces the rotary-side rotary transformer 15. In addition, grooves m4 and windings C4 corresponding to the grooves m2 and the windings C2 of said transformer 15 are formed in a part where a stationary-side rotary transformer 17 faces the rotary-side rotary transformer 15.</p> |
