| 摘要 |
A rotating angle detector ( 10 ) according to the invention comprises magnetic field generating means for rotating integrally with a detected member and uniformly generating a magnetic field in one direction perpendicularly to a rotating axis in a stationary state, and at least two magnetic sensors ( 41 ), ( 42 ), ( 43 ) and ( 44 ) provided to generate one sine wave for one rotation of the magnetic field generating means respectively, wherein input current terminals ( 61 ), ( 62 ), ( 63 ) and ( 64 ) of the magnetic sensor are connected in series. Moreover, it is also possible to employ such a structure that at least two signal differential amplifying means are arranged on a substrate provided with at least two magnetic sensors and there is provided a circuit wiring for causing an output sent from each of the magnetic sensors to pass through the signal differential amplifying means. Furthermore, it is also possible to employ such a structure that all the input current terminals of the magnetic sensor of an apparatus provided with a plurality of rotating angle detectors are connected in series.
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