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WO2013027074A3 - Magnetometer, method for its operation and non-destructive material testing apparatus - Google Patents

Magnetometer, method for its operation and non-destructive material testing apparatus Download PDF

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Publication number
WO2013027074A3
WO2013027074A3 PCT/HU2012/000077 HU2012000077W WO2013027074A3 WO 2013027074 A3 WO2013027074 A3 WO 2013027074A3 HU 2012000077 W HU2012000077 W HU 2012000077W WO 2013027074 A3 WO2013027074 A3 WO 2013027074A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetometer
sensor element
driving coil
testing apparatus
material testing
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/HU2012/000077
Other languages
French (fr)
Other versions
WO2013027074A2 (en
Inventor
Antal Gasparics
Tibor Farkas
János SZÖLLÖSY
Róbert György VÁMOS
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.)
ARACONSYS Kft
Original Assignee
ARACONSYS Kft
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 ARACONSYS Kft filed Critical ARACONSYS Kft
Publication of WO2013027074A2 publication Critical patent/WO2013027074A2/en
Publication of WO2013027074A3 publication Critical patent/WO2013027074A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G01R33/0023—Electronic aspects, e.g. circuits for stimulation, evaluation, control; Treating the measured signals; calibration
    • G01R33/0029—Treating the measured signals, e.g. removing offset or noise
    • 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
    • G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

The invention is a magnetometer comprising a sensor element (20), a drive means (31) operating the sensor element (20) and a processing means (34) processing the response signal of the sensor element (20), the sensor element (20) comprising a driving coil, and an iron core suitable to be driven into magnetic saturation by the driving coil. In the inventive magnetometer the drive means (31) is adapted to supply a constant voltage of varying polarity as a drive voltage to the driving coil, and the processing means (34) is adapted to detect surges of a current of the driving coil appearing at reaching iron core saturations, and to provide information characterising a detected magnetic field strength on the basis of positions in time of said surges. Furthermore, the invention is a method for operating the magnetometer and a non-destructive material testing apparatus using the magnetometer.
PCT/HU2012/000077 2011-08-23 2012-08-23 Magnetometer, method for its operation and non-destructive material testing apparatus Ceased WO2013027074A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUP1100460 2011-08-23
HUP1100460 2011-08-23

Publications (2)

Publication Number Publication Date
WO2013027074A2 WO2013027074A2 (en) 2013-02-28
WO2013027074A3 true WO2013027074A3 (en) 2013-05-30

Family

ID=89621440

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2012/000077 Ceased WO2013027074A2 (en) 2011-08-23 2012-08-23 Magnetometer, method for its operation and non-destructive material testing apparatus

Country Status (1)

Country Link
WO (1) WO2013027074A2 (en)

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US10677953B2 (en) 2016-05-31 2020-06-09 Lockheed Martin Corporation Magneto-optical detecting apparatus and methods
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US10330744B2 (en) 2017-03-24 2019-06-25 Lockheed Martin Corporation Magnetometer with a waveguide
US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
US10338163B2 (en) 2016-07-11 2019-07-02 Lockheed Martin Corporation Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation
US10408890B2 (en) 2017-03-24 2019-09-10 Lockheed Martin Corporation Pulsed RF methods for optimization of CW measurements
US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
US10459041B2 (en) 2017-03-24 2019-10-29 Lockheed Martin Corporation Magnetic detection system with highly integrated diamond nitrogen vacancy sensor
US10379174B2 (en) 2017-03-24 2019-08-13 Lockheed Martin Corporation Bias magnet array for magnetometer
US10338164B2 (en) 2017-03-24 2019-07-02 Lockheed Martin Corporation Vacancy center material with highly efficient RF excitation
US10371760B2 (en) 2017-03-24 2019-08-06 Lockheed Martin Corporation Standing-wave radio frequency exciter
WO2019014279A2 (en) * 2017-07-11 2019-01-17 Lockheed Martin Corporation Magnetometer apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515985A (en) * 1966-12-28 1970-06-02 Compteurs Comp D Magnetometer incorporating probe in the form of a saturable ferromagnetic core subjected to the magnetic field to be measured and to an auxiliary exciting alternating field
DE2326391A1 (en) * 1973-05-24 1974-12-12 Foerster Inst Dr Friedrich TEST COIL ARRANGEMENT FOR SCANNING THE SURFACE OF A METALLIC TEST PART
WO1989002081A1 (en) * 1987-08-25 1989-03-09 Analog Devices, Inc. Flux-balance magnetometer
US5039945A (en) * 1990-03-27 1991-08-13 Webb Spencer L Single winding magnetometer with automatic distortion compensation
US6222363B1 (en) * 1999-01-08 2001-04-24 Methode Electronics, Inc. Switch-mode flux-gate magnetometer
EP2251704A1 (en) * 2009-05-11 2010-11-17 Liaisons Electroniques-Mecaniques Lem S.A. Closed-loop fluxgate current sensor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896593B1 (en) 2006-01-26 2008-03-14 Commissariat Energie Atomique MAGNETOMETER OF FLUXGATE TYPE WITH PULSE EXCITATION AND SAMPLE DETECTION

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515985A (en) * 1966-12-28 1970-06-02 Compteurs Comp D Magnetometer incorporating probe in the form of a saturable ferromagnetic core subjected to the magnetic field to be measured and to an auxiliary exciting alternating field
DE2326391A1 (en) * 1973-05-24 1974-12-12 Foerster Inst Dr Friedrich TEST COIL ARRANGEMENT FOR SCANNING THE SURFACE OF A METALLIC TEST PART
WO1989002081A1 (en) * 1987-08-25 1989-03-09 Analog Devices, Inc. Flux-balance magnetometer
US5039945A (en) * 1990-03-27 1991-08-13 Webb Spencer L Single winding magnetometer with automatic distortion compensation
US6222363B1 (en) * 1999-01-08 2001-04-24 Methode Electronics, Inc. Switch-mode flux-gate magnetometer
EP2251704A1 (en) * 2009-05-11 2010-11-17 Liaisons Electroniques-Mecaniques Lem S.A. Closed-loop fluxgate current sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RIPKA P: "REVIEW OF FLUXGATE SENSORS", SENSORS AND ACTUATORS A, ELSEVIER SEQUOIA S.A., LAUSANNE, CH, vol. A33, no. 3, 1 June 1992 (1992-06-01), pages 129 - 141, XP000297404, ISSN: 0924-4247, DOI: 10.1016/0924-4247(92)80159-Z *

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