| 摘要 |
<p>PURPOSE: To obtain a control system for connecting a signal power to a load on a rotary shaft without mechanical connection to the rotary shaft by providing a detection coil for detecting being close to the rotary shaft and an amplifier that responds to the output. CONSTITUTION: A transformer primary side 4-8 returns to a power supply 2 via a coil that is constituted by winding an insulator 4 around a core 6 and a conductor 8. The edge part of the primary side 4-8 is located adjacent to the rotary shaft 10 made of steel, a secondary side coil 16 is wound around the shaft 10 and is constituted by several order of coil windings, constantly stays within a magnetic flux path of the primary side core 6, and functions as a secondary side. Therefore, current that flows to the primary side 4-8 guides current in the coil 16 and is supplied to a supply load 8. Also, when the distance between the edge part of the core 6 and the shaft 10 changes and the distance of gaps 12 and 14 changes from a short to long distance, a coil 19 provided closer to the shaft 10 detects the change in the magnetic flux of the shaft 10 and controls, for example, the gain of the power supply 2, thus preventing speed from fluctuating and stabilizing power generated at a load 18.</p> |
