WO2009144461A3 - Magnetic induction tomography - Google Patents
Magnetic induction tomography Download PDFInfo
- Publication number
- WO2009144461A3 WO2009144461A3 PCT/GB2009/001335 GB2009001335W WO2009144461A3 WO 2009144461 A3 WO2009144461 A3 WO 2009144461A3 GB 2009001335 W GB2009001335 W GB 2009001335W WO 2009144461 A3 WO2009144461 A3 WO 2009144461A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- excitation
- active reference
- receive
- reference signal
- Prior art date
Links
Classifications
-
- 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
-
- 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
- A61B5/0522—Magnetic induction tomography
-
- 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
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
Abstract
A magnetic induction tomography (MIT) apparatus comprises an excitation signal generator (70) for generating an excitation signal; a primary excitation coil (50) arranged to receive the excitation signal from the excitation signal generator (70) and to convert the excitation signal into electromagnetic radiation and to emit said radiation to excite a sample having at least one of an electrical conductivity distribution, an electrical permittivity distribution or a magnetic permeability distribution; a primary receiver coil (60) arranged to receive electromagnetic radiation from the excited sample and to convert the received radiation into a detection signal; and a signal distribution network (115) arranged to receive the detection signal from the primary receiver coil (60). The apparatus further comprises a passive reference detector arranged to detect the excitation signal and to convert the detected signal into a passive reference signal. The apparatus further comprises an active reference signal generator (230) for generating an active reference signal; and an active reference source (175) arranged to receive the active reference signal from the active reference signal generator (230) and to supply the active reference signal to the signal distribution network (115).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0809679.4 | 2008-05-28 | ||
GB0809679A GB2462243A (en) | 2008-05-28 | 2008-05-28 | Magnetic induction tomography with two reference signals |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009144461A2 WO2009144461A2 (en) | 2009-12-03 |
WO2009144461A3 true WO2009144461A3 (en) | 2010-11-18 |
Family
ID=39616214
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2009/001335 WO2009144461A2 (en) | 2008-05-28 | 2009-05-28 | Magnetic induction tomography |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2462243A (en) |
WO (1) | WO2009144461A2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011018744A1 (en) * | 2009-08-14 | 2011-02-17 | Koninklijke Philips Electronics N.V. | Method and device for measuring conductivity of an object |
EP2333587A1 (en) * | 2009-12-14 | 2011-06-15 | Technische Universität Graz | Device and method for magnetic induction tomography |
EP2332463A1 (en) * | 2009-12-14 | 2011-06-15 | Technische Universität Graz | Device and method magnetic induction tomography |
EP2676157B1 (en) | 2011-02-14 | 2019-04-10 | Philips Intellectual Property & Standards GmbH | Coil arrangement for a magnetic induction impedance measurement apparatus comprising a partly compensated magnetic excitation field in the detection coil |
US11357417B2 (en) | 2012-01-19 | 2022-06-14 | Cerebrotech Medical Systems, Inc. | Continuous autoregulation system |
US10743815B2 (en) | 2012-01-19 | 2020-08-18 | Cerebrotech Medical Systems, Inc. | Detection and analysis of spatially varying fluid levels using magnetic signals |
WO2013110001A1 (en) | 2012-01-19 | 2013-07-25 | Cerebrotech Medical Systems, Inc. | Diagnostic system for detection of fluid changes |
GB2500216B (en) * | 2012-03-13 | 2017-07-26 | Usw Commercial Services Ltd | Method and apparatus for magnetic induction spectroscopy |
JP6583829B2 (en) * | 2014-02-25 | 2019-10-02 | 学校法人北里研究所 | Image generation device |
US9207197B2 (en) | 2014-02-27 | 2015-12-08 | Kimberly-Clark Worldwide, Inc. | Coil for magnetic induction to tomography imaging |
US9320451B2 (en) | 2014-02-27 | 2016-04-26 | Kimberly-Clark Worldwide, Inc. | Methods for assessing health conditions using single coil magnetic induction tomography imaging |
US9442088B2 (en) | 2014-02-27 | 2016-09-13 | Kimberly-Clark Worldwide, Inc. | Single coil magnetic induction tomographic imaging |
US10349864B2 (en) | 2015-04-17 | 2019-07-16 | Elwha Llc | Methods and system for performing magnetic induction tomography |
BR102020006536A2 (en) | 2019-04-17 | 2020-10-27 | Mettler-Toledo Safeline Ltd. | method for operating a metal detector and metal detector |
BR102020006101A2 (en) | 2019-04-17 | 2020-11-03 | Mettler-Toledo Safeline Limited | METHOD FOR OPERATING A METAL DETECTOR AND METAL DETECTOR |
EP3726255A1 (en) | 2019-04-17 | 2020-10-21 | Mettler-Toledo Safeline Limited | Method for operating a metal detector and metal detector |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006137012A2 (en) * | 2005-06-23 | 2006-12-28 | Philips Intellectual Property & Standards Gmbh | Method and apparatus for inductively measuring the bio-impedance of a user's body |
WO2008011649A1 (en) * | 2006-07-24 | 2008-01-31 | Technische Universität Graz | Device and method for magnetic induction tomography |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005057467A2 (en) * | 2003-12-02 | 2005-06-23 | Subqiview Inc. | Tissue characterization using an eddy-current probe |
WO2006111877A1 (en) * | 2005-04-19 | 2006-10-26 | Philips Intellectual Property & Standards Gmbh | Method and apparatus for inductively measuring the bio-impedance of a user’s body |
EP2052274A2 (en) * | 2006-08-11 | 2009-04-29 | Philips Intellectual Property & Standards GmbH | Sensor coil array for magnetic inductance tomography with reduced mutual coil coupling |
-
2008
- 2008-05-28 GB GB0809679A patent/GB2462243A/en not_active Withdrawn
-
2009
- 2009-05-28 WO PCT/GB2009/001335 patent/WO2009144461A2/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006137012A2 (en) * | 2005-06-23 | 2006-12-28 | Philips Intellectual Property & Standards Gmbh | Method and apparatus for inductively measuring the bio-impedance of a user's body |
WO2008011649A1 (en) * | 2006-07-24 | 2008-01-31 | Technische Universität Graz | Device and method for magnetic induction tomography |
Non-Patent Citations (2)
Title |
---|
CASANAS R ET AL: "Biological tissue characterization by magnetic induction spectroscopy (MIS): requirements and limitations", IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US LNKD- DOI:10.1109/TBME.2003.813533, vol. 50, no. 7, 1 July 2003 (2003-07-01), pages 870 - 880, XP011097445, ISSN: 0018-9294 * |
WENWEN LIANG ET AL: "Phase Detection Based on the Lock-in Amplifier SR844 and Experiments of Brain Neuron Cells in MIT System", BIOMEDICAL ENGINEERING AND INFORMATICS, 2008. BMEI 2008. INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 27 May 2008 (2008-05-27), pages 638 - 642, XP031275760, ISBN: 978-0-7695-3118-2 * |
Also Published As
Publication number | Publication date |
---|---|
GB2462243A (en) | 2010-02-03 |
GB0809679D0 (en) | 2008-07-02 |
WO2009144461A2 (en) | 2009-12-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009144461A3 (en) | Magnetic induction tomography | |
CN108401471B (en) | Inductive power transmitter | |
WO2009107005A3 (en) | Iso-plane backbone for radiation detectors | |
TW200628759A (en) | Position detecting system and apparatuses and methods for use and control thereof | |
WO2007074445A3 (en) | System and method of in-vivo magnetic position determination | |
MX346430B (en) | Wireless inductive power transfer. | |
ES2132962T3 (en) | METHOD AND SYSTEM TO DETERMINE THE AUTHENTICITY OF A DATA CARRIER, AS WELL AS SUPPORT OF DATA TO BE USED IN THE SYSTEM. | |
WO2008066645A3 (en) | Integrated proximity sensor and light sensor | |
WO2007072343A3 (en) | Magnetic induction tomography system and method | |
SE0003078D0 (en) | Device, method and system for measuring the distribution of selected properties in a material | |
CL2012002956A1 (en) | Electronic device for probing an objective material containing: means for activating a coil (82, 92) to generate an electromagnetic field around the sensor; and associated method and installation | |
WO2012146930A3 (en) | Electromagnetic sensor and calibration thereof | |
EP2412560A3 (en) | Abnormality detection system | |
WO2006122232A3 (en) | Methods and apparatus for imaging with magnetic induction | |
US10110063B2 (en) | Wireless power alignment guide | |
US10756580B2 (en) | Wireless power transfer system | |
NZ608005A (en) | Search and rescue using ultraviolet radiation | |
WO2010033677A3 (en) | Plasmonic electricity | |
EP2098890A3 (en) | A detector for calculating the depth of a buried conductor | |
US20140340088A1 (en) | Metal Sensor | |
WO2013143868A3 (en) | Buried service detection | |
WO2012110920A3 (en) | Coil arrangement for a magnetic induction impedance measurement apparatus comprising a partly compensated magnetic excitation field in the detection coil | |
WO2007101993A3 (en) | Electromagnetic assay | |
WO2012039679A3 (en) | System for near-infrared autofluorescence measurement of a subject, and method thereof | |
WO2007037931A3 (en) | A photoelectron spectroscopy apparatus and method of use |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09754106 Country of ref document: EP Kind code of ref document: A2 |