SENSOR STRUCTURE FOR DETECTING ROTATIONAL ANGLE

摘要

PURPOSE: A sensor structure for detecting a rotational angle is provided to easily match output characteristics of two magnetic sensors by minimizing non-linearity according to the position of magnetic sensors. CONSTITUTION: A magnet(12) is connected to one side of a rotational member(10) so as to emit a magnetic filed in upward and downward directions thereof. A pair of magnetic sensors(14) is fixedly installed at an upper portion and a lower portion of the magnet(12). When the magnet(12) is moved due to a rotation of a rotational member(10), a magnetic field applied to each of the magnetic sensors is varied. The rotational angle of the rotational member(10) is measured by using the variation of the magnetic field applied to the magnetic sensors(14).