| 摘要 |
<p>PURPOSE:To obtain the rotary transformer having little crosstalk by a method wherein conductor rings are provided between the primary winding and the plural secondary windings on a pair of magnetic cores, and between the respective secondary windings rotatable around the center axis confronting with each other. CONSTITUTION:Two magnetic cores 1 are made to confront with each other rotatable around the center axis C-C', the pairs of winding 2-2', 3-3', 4-4' are arranged thereon and the pairs of short-circuiting conductor ring 5-5', 6-6' are provided between the respective pairs of winding. Accordingly because the magnetic path 12 to cause closstalk interlinking with both of the pairs of winding 2-2', 3-3' interlinks with the newly provided short-circuiting ring 5, while the short-circuiting ring 5 is not interlinked with magnetic pathes 10, 11, a bad influence is not exerted on the pairs of winding 2-2', 3-3'. Moreover because a current is induced in the direction as to negative negative flux in the short-circuiting ring interlinking with the magnetic flux, the magnetic flux passing through the magnetic path 12 is sharply reduced, and therefore mutual inductive coupling between the pairs of winding 2-2', 3-3' is reduced sharply. Samely mutual inductive coupling between the pairs of winding 3-3', 4-4' is also reduced.</p> |
