Magnetic detection device
AssigneesShimadzu Corporation, Optohub Co., Ltd
InventorsYatsuse MAJIMA, Akira NAGUMO, Hiroshi TAKANO
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Abstract
This magnetic detection device is provided with a plurality of magnetic sensors each including an excitation coil, a signal coil, and magnetic core layer, a driving circuit, and a detection circuit. A first axis sensor unit is constituted by at least two magnetic sensors out of the plurality of magnetic sensors, the at least two magnetic sensors being each arranged such that a detection direction thereof is aligned with a first axial direction. A second axis sensor unit is constituted by at least one magnetic sensor out of the plurality of magnetic sensors, the at least one magnetic sensor being arranged such that a detection direction thereof is aligned with a second axial direction intersecting with the first axial direction.
Claims11
A magnetic detection device comprising:
- a plurality of magnetic sensors each including an excitation coil, a signal coil, and a magnetic core layer, the excitation coil and the signal coil each being formed as a conductor pattern on a board, the magnetic core layer being arranged on the board;
- a driving circuit configured to output an AC current to the excitation coil;
- and
- a detection circuit configured to acquire a detection signal from the signal coil,
- wherein a first axis sensor unit is constituted by at least two magnetic sensors out of the plurality of magnetic sensors, the at least two magnetic sensors being each arranged such that a detection direction thereof is aligned with a first axial direction, and
- wherein a second axis sensor unit is constituted by at least one magnetic sensor out of the plurality of magnetic sensors, the at least one magnetic sensor being arranged such that a detection direction thereof is aligned with a second axial direction intersecting with the first axial direction.
Dependencies are inferred from the claim text.