| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic detection device having high angle detection accuracy, by providing a pseudo-sine wave waveform having a large output change by eliminating distortion of the waveform. SOLUTION: This magnetic detection device is composed of a detecting object rotary body 4 having recess-projection parts 4a and 4b on a side surface; a magnetic detection part 1 oppositely arranged on the side surface of this detecting object rotary body 4; and a bias magnet 2 for applying a magnetic field to this magnetic detection part 1, and is formed by positioning the one side end of this bias magnet 2 on one side more than the axis in the radial direction of the detecting object rotary body 4, to be arranged at an interval from the magnetic detection part 1; and can output a pseudo-sine wave by eliminating distortion of the waveform by controlling a magnetic field vector of a magnetic detection element. COPYRIGHT: (C)2006,JPO&NCIPI
|
