| 摘要 |
The provision of a technology for improving magnetic-oscillation sensors and a magnetism detection device such that full advantage of the characteristics of said magnetic-oscillation sensors can be taken. An oscillation-synchronization-signal network in which op-amp circuits (8, 17, 26) for a plurality of magnetic-oscillation sensors are connected by electrical connectors (1, 2, 3) so as to unify the oscillation frequencies of said magnetic-oscillation sensors is constructed, and a resultant excitation current obtained from an oscillation-synchronization signal flowing through the aforementioned oscillation-synchronization-signal network and excitation currents outputted from the aforementioned op-amp circuits (8, 17, 26) is used to forcibly excite cores (6, 15, 24) in magnetism-sensing parts (4, 13, 22) at the unified magnetic-oscillation frequency. |
