| 摘要 |
PURPOSE:To obtain the output of a revolution information signal with high accuracy with regards to a device for obtaining the revolution information such as the revolving positions and rotating speeds of a rotating body such as the rotor of a motor, by providing the plural revolution information signal generating parts, and eliminating noise components in electronic circuits connecting to plural revolution information signal generating parts. CONSTITUTION:Two revolution information signal generating parts 90, 91 are provided on he same plane of a structural body 71 on the stationary side. The two capacity change signals S1, S2 generated by the revolutions of a structural body 70 on the revolving side are inputted to an electronic circuit 75 for processing signals. The circuit 75 is constituted of a detecting part 30 for voltage signals and a synthesizing part 77 for signals, converts the signals S1, S2 inputted thereto to two voltage change signals A, B in the part 30, and further process the same in the part 77 of the next stage, thereby eliminating the noise components accompanied with the revolutions and providing the revolution information signal C of high accuracy. |
