G - Physics – 01 – R
Patent
G - Physics
01
R
324/48
G01R 33/025 (2006.01)
Patent
CA 2008009
ABSTRACT An apparatus is provided for measuring a very weak magnetic field generated by a human body, etc. External magnetic noise components coming from other magnetic sources and existing around an object whose magnetic field is to be measured are detected by compensation coils of the apparatus. The compensation coils are oriented in multiple dimensional directions. The detected noise components are weighted and added to each other to correctly find the noise components. Thereafter, the noise components mixed in the objective very weak magnetic field are removed, thereby correctly measuring the very weak magnetic field.
Hayashi Hajime
Hayashi Takehiko
Igarashi Yutaka
Kawabe Kenji
Shimura Takaki
Fujitsu Limited
Mcfadden Fincham
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