Title:
MAGNETIC FIELD MEASURING APPARATUS AND MAGNETIC FIELD MEASURING METHOD
Document Type and Number:
Japanese Patent JP2018007821
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic field measuring apparatus and magnetic field measuring method capable of measuring a weak magnetic field from a living body and being downsized.SOLUTION: A magnetic field measuring apparatus and magnetic field measuring method according to the present invention: measure a magnetic field from an object 99 by a magnetic sensor group 11 including a plurality of magnetic sensors 1; and calculates a common noise component applied to an observation amount 11 of the magnetic sensors 1 of all channels included in the magnetic sensor groups 11 as an estimate value of the magnetic noise component from the outside. The magnetic field from the object 99 is detected by subtracting an average value thereof from the observation amount of each of the magnetic sensors 1.SELECTED DRAWING: Figure 1
Inventors:
TANAKA TAKESHI
OGATA YUJI
HATA YOSHIYUKI
HAYAKAWA TOSHIAKI
UEDA TOMOAKI
OGATA YUJI
HATA YOSHIYUKI
HAYAKAWA TOSHIAKI
UEDA TOMOAKI
Application Number:
JP2016138447A
Publication Date:
January 18, 2018
Filing Date:
July 13, 2016
Export Citation:
Assignee:
ADVANTEST CORP
International Classes:
A61B5/05; G01R33/06
Domestic Patent References:
| JPH0763834A | 1995-03-10 | |||
| JP2001124837A | 2001-05-11 | |||
| JP2001104264A | 2001-04-17 | |||
| JP2000287947A | 2000-10-17 | |||
| JPH05297087A | 1993-11-12 | |||
| JPH11104094A | 1999-04-20 | |||
| JPH114815A | 1999-01-12 | |||
| JP2001127352A | 2001-05-11 |
Foreign References:
| US6473518B1 | 2002-10-29 |
Attorney, Agent or Firm:
Keizo Okamoto