Title:
磁場計測装置、磁場計測方法、および、磁場計測プログラム
Document Type and Number:
Japanese Patent JP7364485
Kind Code:
B2
Abstract:
To more accurately measure a magnetic field.SOLUTION: A magnetic field measurement device includes: a magnetic sensor array which is constituted by three dimensionally arraying a plurality of magnetic sensor cells each having a magnetic sensor, an output unit, and a magnetic field generation unit, and capable of detecting input magnetic fields in three axes directions; a measurement data acquisition unit which acquires measurement data measured by the magnetic sensor array; a signal space separation unit which performs signal separation to a vector signal as a basic vector containing, as each signal component, a signal output by each of the magnetic sensors, when a magnetic field having a space distribution of an orthogonal function is detected by the magnetic sensor array, the space distribution of the input magnetic field being indicated by the measurement data; and a correction unit which corrects a sensor error of the magnetic sensor on the basis of a separation error at the signal separation of the space distribution of a calibration magnetic field generated by the magnetic field generation unit contained in at least one magnetic sensor cell in the plurality of magnetic sensor cells.SELECTED DRAWING: Figure 11
Inventors:
Takenobu Nakamura
Makoto Kataoka
Shigeki Okatake
Makoto Kataoka
Shigeki Okatake
Application Number:
JP2020015430A
Publication Date:
October 18, 2023
Filing Date:
January 31, 2020
Export Citation:
Assignee:
Asahi Kasei Electronics Corporation
International Classes:
G01R33/09; A61B5/05; G01R33/02; G01R35/00
Domestic Patent References:
| JP2012152515A | ||||
| JP2019215322A | ||||
| JP2019171019A | ||||
| JP2017191040A | ||||
| JP20173345A |
Foreign References:
| CN103885002A | ||||
| CN101361660A |
Attorney, Agent or Firm:
Patent Attorney Corporation RYUKA International Patent Office
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