| 摘要 |
PURPOSE:To enable to reduce the size of a frequency generator by forming a plurality of grooves which are displaced in phase at an electric angle of 180 deg. in the respective boundaries between N-pole and S-pole which are mainly magnetized around a magnet which is mainly magnetized, thereby eliminating an FG magnetization. CONSTITUTION:A plurality of grooves 5 are formed at the periphery of a magnet 1 which is mainly magnetized at N-poles 2A-2D and S-poles 3A-3D. The grooves 5 are formed to be displaced in phase at an electric angle of 180 deg. in the boundaries between the N-poles and the S-poles which are mainly magnetized. A voltage is induced at the sides (a)-(d) of the conductive pattern 7 formed on a printed board 6 by utilizing the leakage magnetic flux from the main magnetization sections, and the voltage which are integrated over the entire periphery of the board 6 is produced from terminals A, B. |
