GB0710950D0 - A high outpoint impedance voltage controlled current source - Google Patents

A high outpoint impedance voltage controlled current source

Info

Publication number
GB0710950D0
GB0710950D0 GBGB0710950.7A GB0710950A GB0710950D0 GB 0710950 D0 GB0710950 D0 GB 0710950D0 GB 0710950 A GB0710950 A GB 0710950A GB 0710950 D0 GB0710950 D0 GB 0710950D0
Authority
GB
United Kingdom
Prior art keywords
outpoint
current source
voltage controlled
controlled current
impedance voltage
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.)
Withdrawn
Application number
GBGB0710950.7A
Other versions
GB2449904A (en
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.)
De Montfort University
Original Assignee
De Montfort University
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 De Montfort University filed Critical De Montfort University
Priority to GB0710950A priority Critical patent/GB2449904A/en
Publication of GB0710950D0 publication Critical patent/GB0710950D0/en
Publication of GB2449904A publication Critical patent/GB2449904A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/461—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using an operational amplifier as final control device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/561—Voltage to current converters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Amplifiers (AREA)
GB0710950A 2007-06-07 2007-06-07 A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error Withdrawn GB2449904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0710950A GB2449904A (en) 2007-06-07 2007-06-07 A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0710950A GB2449904A (en) 2007-06-07 2007-06-07 A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error

Publications (2)

Publication Number Publication Date
GB0710950D0 true GB0710950D0 (en) 2007-07-18
GB2449904A GB2449904A (en) 2008-12-10

Family

ID=38318909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0710950A Withdrawn GB2449904A (en) 2007-06-07 2007-06-07 A high-frequency current source for Electrical impedance Tomography (EIT), with compensation for amplifier gain error

Country Status (1)

Country Link
GB (1) GB2449904A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0920388D0 (en) 2009-11-20 2010-01-06 Wzvi Ltd Electrical impedance detection and ultrasound scanning of body tissue
US9861293B2 (en) 2011-04-28 2018-01-09 Myolex Inc. Sensors, including disposable sensors, for measuring tissue
EP2701591A2 (en) 2011-04-28 2014-03-05 Skulpt, Inc. Devices and methods for evaluating tissue
CN102894961B (en) * 2012-10-30 2014-04-09 中国人民解放军第四军医大学 Electrical impedance tomography method of self-structuring background frame
GB2526630B (en) * 2014-05-30 2016-05-04 Contacta Systems Ltd Amplifier for induction loop
RU179569U1 (en) * 2017-10-13 2018-05-17 Общество с ограниченной ответственностью "Лаборатория информационных управленческих систем" The registration device of the skin-galvanic reaction (RAG)
CN112859991B (en) * 2021-04-23 2021-07-30 深圳市拓尔微电子有限责任公司 Voltage processing circuit and method of controlling voltage processing circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5544662A (en) * 1991-07-09 1996-08-13 Rensselaer Polytechnic Institute High-speed electric tomography
GB9818790D0 (en) * 1998-08-28 1998-10-21 Univ Montfort Apparatus and method for detecting abnormalities in bodily matter
DE10156833A1 (en) * 2001-11-20 2003-05-28 Boehm Stephan Electrode for biomedical measurements has contact plate connected to line driver high impedance input and current source current output, line driver, current source close to contact plate
US7116157B2 (en) * 2003-07-31 2006-10-03 Rensselaer Polytechnic Institute High output impedance current source
US20050251062A1 (en) * 2004-05-10 2005-11-10 Myoung Choi Iterative approach for applying multiple currents to a body using voltage sources in electrical impedance tomography
KR100700112B1 (en) * 2006-02-03 2007-03-28 경희대학교 산학협력단 System and method for Electrical Impedance Tomography

Also Published As

Publication number Publication date
GB2449904A (en) 2008-12-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)