US 12,082,915 B2
Magnetic field measurement device, magnetic field measurement method, and recording medium having magnetic field measurement program recorded thereon
Shigeki Okatake, Tokyo (JP); Makoto Kataoka, Tokyo (JP); and Takenobu Nakamura, Tokyo (JP)
Assigned to Asahi Kasei Microdevices Corporation, Tokyo (JP)
Filed by Asahi Kasei Microdevices Corporation, Tokyo (JP)
Filed on Apr. 27, 2021, as Appl. No. 17/241,106.
Claims priority of application No. 2020-082873 (JP), filed on May 8, 2020.
Prior Publication US 2021/0345898 A1, Nov. 11, 2021
Int. Cl. G01R 5/02 (2006.01); A61B 5/024 (2006.01); G01R 33/00 (2006.01); G01R 33/02 (2006.01)
CPC A61B 5/02405 (2013.01) [G01R 33/0011 (2013.01); G01R 33/0094 (2013.01); G01R 33/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A magnetic field measurement device, comprising:
at least one processor;
a magnetic sensor array that is composed of a plurality of magnetic sensor cells, each of which has a magnetic sensor and an output device for outputting an output signal, arranged at lattice points between two curved surfaces, each of which is bent in one direction, so as to be three-dimensionally arranged, and is capable of detecting an input magnetic field in three-axial directions;
a measurement data acquisition unit that uses the at least one processor to acquire measurement data measured by the magnetic sensor array; and
a magnetic field reconstruction unit that uses the at least one processor to reconstruct a magnetic field of a component orthogonal to a virtual sensor array plane with respect to one or more positions on the virtual sensor array plane, which is a plane specified in a three-dimensional space, using the measurement data.