| 摘要 |
PURPOSE:To improve reliability by arranging a spherical member of a magnetic conductor at distance from a magnet fitted to a driving shaft, and fitting two resistance elements and/or conductor elements on which the magnetic body abuts over the movement range of the magnet. CONSTITUTION:The driving shaft 2 which rotates following up external mechanical displacement is fitted to a casing 1, and the magnetic 5 is fitted through its fitting shaft 11. An annular projection part 6 which extends to the top surface of the magnet 5 is formed in the casing 1 and a V-shaped annular groove 7 is formed in its top surface. An annular member 8 of a magnetic conductor is arranged in the recessed groove 7 and an annular resistance element 9 and a conductor element 10 are stuck on the internal surface of the recessed groove 7 opposite each other over the movement range of the magnet 5. An input terminal and an earth terminal are fitted to both terminals of the resistance element 9 and an output terminal is also fitted to one terminal of the conductor element 10 opposite the input terminal. A voltage is applied between both terminals of the resistance element 9 and the voltage between the input terminal and output terminal is led out. |
