| 摘要 |
PURPOSE:To obtain an inclination sensor free of variation in responsiveness by forming a pendulum member of a nonmagnetic material with good conductivity, and damping the pendulum member electromagnetically with a permanent magnet provided on a substrate. CONSTITUTION:The pendulum member 1 varies in angle to the substrate according to the inclination angle of an automobile. At this time, the pendulum member 1 rotates crossing the magnetic flux of the permanent magnet 3. When the pendulum member 1 rotates at a speed (v) as shown by an arrow, a voltage is induced at the pendulum member 1 perpendicularly to the rotational direction and an eddy current is generated by the induced voltage as shown by an arrow. Force proportional to the speed (v) is generated by the eddy current in the opposite direction of the rotation of the pendulum member 1 and serves as damping force to stabilize the rotation of the pendulum member 1. Therefore, a detection signal obtained at a photoelectric converting element 4 is a stable electrical signal from which variation components due to oscillation of the automobile and pulsation of the pendulum member 1 are removed. |
