WO2020241465A1 - 計測装置、計測方法、およびプログラム - Google Patents

計測装置、計測方法、およびプログラム Download PDF

Info

Publication number
WO2020241465A1
WO2020241465A1 PCT/JP2020/020202 JP2020020202W WO2020241465A1 WO 2020241465 A1 WO2020241465 A1 WO 2020241465A1 JP 2020020202 W JP2020020202 W JP 2020020202W WO 2020241465 A1 WO2020241465 A1 WO 2020241465A1
Authority
WO
WIPO (PCT)
Prior art keywords
living body
magnetic field
unit
magnetic
magnetic sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/020202
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
秀之 ▲辻▼
茂樹 岡武
真士 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Kasei Corp, Asahi Chemical Industry Co Ltd filed Critical Asahi Kasei Corp
Priority to KR1020217036077A priority Critical patent/KR102770857B1/ko
Priority to CN202080036632.7A priority patent/CN113874742B/zh
Priority to JP2021522298A priority patent/JP7204908B2/ja
Publication of WO2020241465A1 publication Critical patent/WO2020241465A1/ja
Priority to US17/454,623 priority patent/US12038488B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/0206—Three-component magnetometers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0536—Impedance imaging, e.g. by tomography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0017—Means for compensating offset magnetic fields or the magnetic flux to be measured; Means for generating calibration magnetic fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0094—Sensor arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/09—Magnetoresistive devices
    • G01R33/091—Constructional adaptation of the sensor to specific applications

Definitions

  • the calculation unit 895 may calculate the lead frame matrix in the forward problem and then calculate N currents J1 to JN as the inverse problem. In the inverse problem, the calculation unit 895 can calculate the currents J1 to JN by the formula shown in (Equation 17) so as to minimize the square error as shown in (Equation 16).
  • the signal space separation unit 890 suppresses the disturbance magnetic field based on the result of signal separation in step 1330, calculates only the right and left measurement target magnetic fields, and outputs them to the calculation unit 895, respectively.
  • the calculation of the magnetic field to be measured on the right side and the left side may be carried out in the same manner using (Equation 6) to (Equation 14), respectively.
  • the CPU 2212 executes a communication program loaded in the RAM 2214, and performs communication processing on the communication interface 2222 based on the processing described in the communication program. You may order.
  • the communication interface 2222 reads and reads transmission data stored in a transmission buffer processing area provided in a recording medium such as a RAM 2214, a hard disk drive 2224, a DVD-ROM 2201, or an IC card. The data is transmitted to the network, or the received data received from the network is written to the reception buffer processing area or the like provided on the recording medium.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring Magnetic Variables (AREA)
PCT/JP2020/020202 2019-05-31 2020-05-21 計測装置、計測方法、およびプログラム Ceased WO2020241465A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020217036077A KR102770857B1 (ko) 2019-05-31 2020-05-21 계측 장치, 계측 방법 및 프로그램
CN202080036632.7A CN113874742B (zh) 2019-05-31 2020-05-21 测量装置、测量方法以及计算机可读介质
JP2021522298A JP7204908B2 (ja) 2019-05-31 2020-05-21 計測装置、計測方法、およびプログラム
US17/454,623 US12038488B2 (en) 2019-05-31 2021-11-12 Measuring apparatus, measuring method and recording medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-103194 2019-05-31
JP2019103194 2019-05-31

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/454,623 Continuation US12038488B2 (en) 2019-05-31 2021-11-12 Measuring apparatus, measuring method and recording medium

Publications (1)

Publication Number Publication Date
WO2020241465A1 true WO2020241465A1 (ja) 2020-12-03

Family

ID=72474352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/020202 Ceased WO2020241465A1 (ja) 2019-05-31 2020-05-21 計測装置、計測方法、およびプログラム

Country Status (6)

Country Link
US (1) US12038488B2 (https=)
JP (1) JP7204908B2 (https=)
KR (1) KR102770857B1 (https=)
CN (1) CN113874742B (https=)
TW (1) TWI752510B (https=)
WO (1) WO2020241465A1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022153075A (ja) * 2021-03-29 2022-10-12 旭化成株式会社 計測装置、計測方法、およびプログラム
JP2022153186A (ja) * 2021-03-29 2022-10-12 旭化成株式会社 計測装置、計測方法、およびプログラム
JP2022153083A (ja) * 2021-03-29 2022-10-12 旭化成株式会社 計測装置、計測方法、およびプログラム

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190377035A1 (en) * 2018-06-08 2019-12-12 Asahi Kasei Microdevices Corporation Magnetic field measurement apparatus, magnetic field measurement method, and storage medium with magnetic field measurement program stored thereon
JP6664568B1 (ja) 2018-08-22 2020-03-13 旭化成エレクトロニクス株式会社 磁場計測装置、磁場計測方法、磁場計測プログラム
JP6936405B2 (ja) 2018-12-26 2021-09-15 旭化成エレクトロニクス株式会社 磁場計測装置
JP2023092112A (ja) * 2021-12-21 2023-07-03 株式会社ジャパンディスプレイ 圧力センサの校正方法
CN117064396A (zh) * 2022-04-19 2023-11-17 Tdk株式会社 测量装置
JP2024000613A (ja) * 2022-06-21 2024-01-09 旭化成エレクトロニクス株式会社 推定装置、推定方法、及びプログラム
CN115267290A (zh) * 2022-07-08 2022-11-01 珠海多创科技有限公司 阵列式电流传感器

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113067A1 (en) 2009-03-30 2010-10-07 Koninklijke Philips Electronics N.V. Magnetic induction tomography systems with coil configuration
US20110081058A1 (en) * 2009-10-06 2011-04-07 Chenyu Wu Reconstructing Three-Dimensional Current Sources from Magnetic Sensor Data
WO2011086512A1 (en) 2010-01-18 2011-07-21 Koninklijke Philips Electronics N.V. Electric properties tomography imaging method and system
WO2015129756A1 (ja) * 2014-02-25 2015-09-03 学校法人北里研究所 画像生成装置、導電率取得装置、画像生成方法及びプログラム
US20170303991A1 (en) 2014-08-28 2017-10-26 The Regents Of The University Of California Monitoring Electrolysis
WO2018047083A2 (en) * 2016-09-07 2018-03-15 Texas Tech University System Electric current imaging system
JP2019045496A (ja) * 2017-08-31 2019-03-22 旭化成エレクトロニクス株式会社 測定装置および測定方法
WO2020040168A1 (ja) * 2018-08-22 2020-02-27 旭化成エレクトロニクス株式会社 磁場計測装置、磁場計測方法、磁場計測プログラム

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243628A1 (de) 1992-12-22 1994-06-23 Siemens Ag Vorrichtung zur nichtinvasiven Bestimmung der räumlichen Verteilung der elektrischen Impedanz im Innern eines Lebewesens
IL106338A0 (en) * 1993-07-14 1993-11-15 Sarid Medical Instrumentation Method and apparatus for detection of neuronal ionic disturbances
US6263230B1 (en) * 1997-05-08 2001-07-17 Lucent Medical Systems, Inc. System and method to determine the location and orientation of an indwelling medical device
JP3424524B2 (ja) 1997-09-30 2003-07-07 株式会社日立製作所 生体磁場計測装置
JP3514655B2 (ja) 1999-03-19 2004-03-31 株式会社日立製作所 生体磁場計測装置
KR100437601B1 (ko) * 2001-04-03 2004-06-26 한국표준과학연구원 고감도 스퀴드 자력계를 이용한 생체자기 측정장치
KR100570202B1 (ko) * 2003-06-25 2006-04-12 학교법인 고황재단 도전율 및 전류밀도를 영상화하는 시스템 및 방법
FI115737B (fi) 2003-09-26 2005-06-30 Elekta Neuromag Oy Menetelmä monikanavaisen mittaussignaalin käyttämiseksi lähdemallinnuksessa
US7759931B2 (en) * 2005-03-14 2010-07-20 National University Corporation, Okayama University Device for measuring magnetic impedance
AT506293B1 (de) * 2008-07-16 2009-08-15 Univ Innsbruck Verfahren zur abbildung eines objekts und vorrichtung zur durchführung des verfahrens
JP5798560B2 (ja) * 2010-09-10 2015-10-21 コニカミノルタ株式会社 生体磁気計測装置、及び生体磁気計測システム
CN102499682B (zh) * 2011-10-19 2013-08-07 中国人民解放军第四军医大学 用于磁感应断层成像的激励测量复用线圈组及数据采集
US9581627B2 (en) 2012-05-21 2017-02-28 General Electric Company Method and system for tomographic imaging
US20160242672A1 (en) * 2013-10-17 2016-08-25 Asahi Kasei Kabushiki Kaisha Vital signal measuring apparatus and method for estimating contact condition
WO2018105447A1 (ja) * 2016-12-08 2018-06-14 旭化成株式会社 接触状態推定装置及び生体信号測定装置
TWI834615B (zh) * 2017-06-16 2024-03-11 美國康奈爾大學 用於一個體之一身體上及/或身體內部運動之非接觸量測之方法及用於量測一個體之運動之系統
US11744470B2 (en) 2017-06-16 2023-09-05 Cornell University Methods and systems for electromagnetic near-field coherent sensing
US10481699B2 (en) * 2017-07-27 2019-11-19 Facebook Technologies, Llc Armband for tracking hand motion using electrical impedance measurement
JP2019045275A (ja) * 2017-08-31 2019-03-22 旭化成エレクトロニクス株式会社 磁気検出装置
CN207912687U (zh) * 2017-10-17 2018-09-28 天津工业大学 一种基于磁探测电阻抗成像的测量系统
US20190125439A1 (en) 2017-10-26 2019-05-02 Boston Scientific Scimed Inc. Use of electromagnetic fields in ire device delivery and therapy monitoring
US20190298202A1 (en) * 2018-03-28 2019-10-03 Asahi Kasei Microdevices Corporation Magnetocardiographic measurement apparatus, calibration method, and recording medium having recorded thereon calibration program
CN108836331A (zh) * 2018-07-11 2018-11-20 天津工业大学 一种通过磁场方式获得电导率图像的方法和系统
JP6936405B2 (ja) * 2018-12-26 2021-09-15 旭化成エレクトロニクス株式会社 磁場計測装置
US11497425B2 (en) * 2019-03-08 2022-11-15 Asahi Kasei Microdevices Corporation Magnetic field measurement apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113067A1 (en) 2009-03-30 2010-10-07 Koninklijke Philips Electronics N.V. Magnetic induction tomography systems with coil configuration
US20110081058A1 (en) * 2009-10-06 2011-04-07 Chenyu Wu Reconstructing Three-Dimensional Current Sources from Magnetic Sensor Data
WO2011086512A1 (en) 2010-01-18 2011-07-21 Koninklijke Philips Electronics N.V. Electric properties tomography imaging method and system
WO2015129756A1 (ja) * 2014-02-25 2015-09-03 学校法人北里研究所 画像生成装置、導電率取得装置、画像生成方法及びプログラム
US20170303991A1 (en) 2014-08-28 2017-10-26 The Regents Of The University Of California Monitoring Electrolysis
WO2018047083A2 (en) * 2016-09-07 2018-03-15 Texas Tech University System Electric current imaging system
JP2019045496A (ja) * 2017-08-31 2019-03-22 旭化成エレクトロニクス株式会社 測定装置および測定方法
WO2020040168A1 (ja) * 2018-08-22 2020-02-27 旭化成エレクトロニクス株式会社 磁場計測装置、磁場計測方法、磁場計測プログラム

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
GANG LI ET AL: "A New Electrode Mode for Magnetic Detection Electrical Impedance Tomography: Computer Simulation Study", IEEE TRANSACTIONS ON MAGNETICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 48, no. 10, 1 October 2012 (2012-10-01), pages 2543 - 2550, XP011463558, ISSN: 0018-9464, DOI: 10.1109/TMAG.2012.2200692 *
IRELAND R H ET AL: "Towards magnetic detection electrical impedance tomography: data acquisition and image reconstruction of current density in phantoms and in vivo; Magnetic detection EIT", PHYSIOLOGICAL MEASUREMENT, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, GB, vol. 25, no. 3, 1 June 2004 (2004-06-01), pages 775 - 796, XP020074156, ISSN: 0967-3334, DOI: 10.1088/0967-3334/25/3/016 *
LI, GANG ET AL.: "A New Electrode Mode for Magnetic Detection Electrical Impedance Tomography: Computer Simulation Study", IEEE TRANSACTIONS ON MAGNETICS, vol. 48, no. 10, 2012, pages 2543 - 2550, XP011463558, DOI: 10.1109/TMAG.2012.2200692 *
SHAI LEVY ET AL: "Electromagnetic Impedance Tomography (EMIT):A New Method for Impedance Imaging", IEEE TRANSACTIONS ON MEDICAL IMAGING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 21, no. 6, 1 June 2002 (2002-06-01), XP011076308, ISSN: 0278-0062 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022153075A (ja) * 2021-03-29 2022-10-12 旭化成株式会社 計測装置、計測方法、およびプログラム
JP2022153186A (ja) * 2021-03-29 2022-10-12 旭化成株式会社 計測装置、計測方法、およびプログラム
JP2022153083A (ja) * 2021-03-29 2022-10-12 旭化成株式会社 計測装置、計測方法、およびプログラム
JP7636933B2 (ja) 2021-03-29 2025-02-27 旭化成株式会社 計測装置、計測方法、およびプログラム

Also Published As

Publication number Publication date
JP7204908B2 (ja) 2023-01-16
TWI752510B (zh) 2022-01-11
US12038488B2 (en) 2024-07-16
KR102770857B1 (ko) 2025-02-24
TW202100100A (zh) 2021-01-01
CN113874742B (zh) 2024-12-06
US20220065953A1 (en) 2022-03-03
CN113874742A (zh) 2021-12-31
JPWO2020241465A1 (https=) 2020-12-03
KR20210151871A (ko) 2021-12-14

Similar Documents

Publication Publication Date Title
JP7204908B2 (ja) 計測装置、計測方法、およびプログラム
JP6761138B2 (ja) 磁場計測装置、磁場計測方法、磁場計測プログラム
JP7487156B2 (ja) 磁場計測装置
US20230324476A1 (en) Magnetic field measurement apparatus, magnetic field measurement method, and storage medium with magnetic field measurement program stored thereon
JP7186652B2 (ja) 心磁計測装置
JP7525297B2 (ja) 磁場計測装置、磁場計測方法、および、磁場計測プログラム
US11497425B2 (en) Magnetic field measurement apparatus
JP2019215322A (ja) 磁場計測装置、磁場計測方法、磁場計測プログラム
JP7795396B2 (ja) 磁場計測装置、磁場計測方法、及び磁場計測プログラム
JP2020148760A (ja) 測定装置
US11668772B2 (en) Magnetic field measurement device, magnetic field measurement method, and recording medium having recorded thereon magnetic field measurement program
JP7330014B2 (ja) 心磁計測装置、心磁計測方法、および、心磁計測プログラム
JP7636933B2 (ja) 計測装置、計測方法、およびプログラム
JP7262243B2 (ja) 測定装置、信号処理装置、信号処理方法、および、信号処理プログラム
JP2021120619A (ja) 磁場計測装置、磁場計測方法、および磁場計測プログラム
JP2023134200A (ja) 磁場計測装置、磁場計測方法、および、磁場計測プログラム
JP2022153083A (ja) 計測装置、計測方法、およびプログラム
JP2022153075A (ja) 計測装置、計測方法、およびプログラム
JP2024140527A (ja) 較正装置、較正方法、および較正プログラム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20771933

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021522298

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20217036077

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20771933

Country of ref document: EP

Kind code of ref document: A1