NO873158L - Magnetometer. - Google Patents

Magnetometer.

Info

Publication number
NO873158L
NO873158L NO873158A NO873158A NO873158L NO 873158 L NO873158 L NO 873158L NO 873158 A NO873158 A NO 873158A NO 873158 A NO873158 A NO 873158A NO 873158 L NO873158 L NO 873158L
Authority
NO
Norway
Prior art keywords
field
magnetometer
variation
intensity
magnetic bias
Prior art date
Application number
NO873158A
Other languages
English (en)
Norwegian (no)
Other versions
NO873158D0 (no
Inventor
Lucian G Ferguson
Lincoln H Charlot Jr
Original Assignee
Security Tag Systems Inc
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 Security Tag Systems Inc filed Critical Security Tag Systems Inc
Publication of NO873158D0 publication Critical patent/NO873158D0/no
Publication of NO873158L publication Critical patent/NO873158L/no

Links

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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Magnetic Variables (AREA)
  • Eye Examination Apparatus (AREA)
  • Glass Compositions (AREA)
  • Paints Or Removers (AREA)
  • Details Of Television Scanning (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Current Or Voltage (AREA)
NO873158A 1986-07-31 1987-07-28 Magnetometer. NO873158L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/891,379 US5015953A (en) 1986-07-31 1986-07-31 Magnetometer for detecting DC magnetic field variations

Publications (2)

Publication Number Publication Date
NO873158D0 NO873158D0 (no) 1987-07-28
NO873158L true NO873158L (no) 1988-02-01

Family

ID=25398091

Family Applications (1)

Application Number Title Priority Date Filing Date
NO873158A NO873158L (no) 1986-07-31 1987-07-28 Magnetometer.

Country Status (7)

Country Link
US (1) US5015953A (de)
EP (1) EP0256659B1 (de)
JP (1) JPS6338190A (de)
AT (1) ATE76515T1 (de)
DE (1) DE3779214D1 (de)
ES (1) ES2031898T3 (de)
NO (1) NO873158L (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5126666A (en) * 1990-11-01 1992-06-30 Kvh Industries, Inc. Method and apparatus for substantially eliminating magnetic field interference to a magnetometer caused by DC current carrying conductors
US5274327A (en) * 1992-06-12 1993-12-28 Xerox Corporation Powder sample holding capsule holding adapter for a vibrating sample magnetometer
WO1994006029A1 (fr) * 1992-06-25 1994-03-17 Torgovo-Promyshlennaya Kompania Gikon (Tpk Gikon) Procede de mesure de l'induction d'un champ magnetique
DE4243878C2 (de) * 1992-12-23 1996-05-15 Suspa Spannbeton Gmbh Überwachungsvorrichtung für Bauelemente
ES2070702B1 (es) * 1992-12-31 1997-03-01 Alcatel Standard Electrica Dispositivo sensor de campo magnetico.
US5557199A (en) * 1994-04-29 1996-09-17 The United States Of America As Represented By The Department Of Health And Human Services Magnetic resonance monitor
US5600241A (en) * 1995-07-07 1997-02-04 The United States Of America As Represented By The Secretary Of The Navy Vibrating-reed susceptometer for measuring anisotropic aspects of susceptibility
DE19615519A1 (de) * 1996-04-19 1997-10-30 Voith Turbo Kg Digitaler Zweipunktregler für ein Aktuatorelement
GB2315870B (en) * 1996-08-02 2001-01-31 Ultra Electronics Ltd Magnetometer
US6512370B1 (en) 1999-02-12 2003-01-28 Elf Engineering, Ltd. Low power, frequency-mode magnetometer
WO2004070408A1 (ja) * 2003-02-04 2004-08-19 Nec Tokin Corporation 磁気センサ
JP4296293B2 (ja) * 2003-09-02 2009-07-15 アイシーキューブ カンパニー リミテッド ウルトラセンシティブ・インサイチュー・マグネットメーターシステム
US20070001671A1 (en) * 2005-06-30 2007-01-04 Park Rudolph V Magnetostrictive MEMS based magnetometer
RU2330303C2 (ru) * 2006-09-01 2008-07-27 Петрос Меликович Гаспаров Феррозондовый магнитометр
WO2016022194A1 (en) * 2014-08-08 2016-02-11 Halliburton Energy Services, Inc. Low-noise fluxgate magnetometer with increased operating temperature range

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2334593A (en) * 1941-05-08 1943-11-16 Gulf Research Development Co Apparatus for measuring magnetic fields
US2474693A (en) * 1945-01-31 1949-06-28 Robert G Rowe Magnetic field responsive device
US3461387A (en) * 1965-04-20 1969-08-12 Electro Mechanics Co The Magnetic field detector using a variable inductance rod
US3488587A (en) * 1966-04-04 1970-01-06 Honeywell Inc Magnetostrictive electromechanical galvanometer apparatus
US3443213A (en) * 1966-04-18 1969-05-06 Burroughs Corp Magnetometer using thin film transducer as slope detection filter
DE2851771C2 (de) * 1978-11-30 1980-12-18 Ibm Deutschland Gmbh, 7000 Stuttgart Verfahren zur direkten Bestimmung der Magnetostriktionskonstanten und Vorrichtung zur Durchführung desselben
US4484184A (en) * 1979-04-23 1984-11-20 Allied Corporation Amorphous antipilferage marker
US4298862A (en) * 1979-04-23 1981-11-03 Allied Chemical Corporation Amorphous antipilferage marker
JPS5843502A (ja) * 1981-09-09 1983-03-14 Aisin Seiki Co Ltd ウイ−ガンド効果素子
US4495487A (en) * 1981-11-02 1985-01-22 Allied Corporation Amorphous antipilferage marker
JPS58185007A (ja) * 1982-04-21 1983-10-28 Toshiba Corp 磁気再生装置
US4510489A (en) * 1982-04-29 1985-04-09 Allied Corporation Surveillance system having magnetomechanical marker
US4510490A (en) * 1982-04-29 1985-04-09 Allied Corporation Coded surveillance system having magnetomechanical marker
US4553136A (en) * 1983-02-04 1985-11-12 Allied Corporation Amorphous antipilferage marker
US4648041A (en) * 1985-06-24 1987-03-03 The United States Of America As Represented By The Secretary Of The Navy Method of measuring magnetic effects due to eddy currents

Also Published As

Publication number Publication date
EP0256659B1 (de) 1992-05-20
JPS6338190A (ja) 1988-02-18
ATE76515T1 (de) 1992-06-15
ES2031898T3 (es) 1993-01-01
DE3779214D1 (de) 1992-06-25
US5015953A (en) 1991-05-14
NO873158D0 (no) 1987-07-28
EP0256659A1 (de) 1988-02-24

Similar Documents

Publication Publication Date Title
NO873158L (no) Magnetometer.
US8071027B2 (en) Method and device for selectively detecting ferromagnetic or superparamagnetic particles
US4323847A (en) Oscillator type metal detector with switch controlled fixed biasing
SE9902477D0 (sv) Method for inductive measurement of a dimension of an object
NO20023656D0 (no) Fremgangsmåte for å bestemme egenskapene av et underjordisk reservoar
US5446379A (en) Method and system for searching and sensing reinforcing steel in concrete by employing an oscillator driver sensor coil
US6084406A (en) Half-cycle saturable-core magnetometer circuit
US20110264320A1 (en) Method of guiding a vehicle
EP0316914A2 (de) Annäherungsschalter des Hochfrequenzschwingungstyps
ATE170312T1 (de) Münzdetektor
RU2157002C2 (ru) Квадрупольные детекторы мин
US6304075B1 (en) Magnetic resonance sensor
US4107607A (en) Magnetometer using a field controlled oscillator, the oscillator core being maintained near its Curie point
GB2124767A (en) Apparatus for determining a change in the composition of a fluid
US5334935A (en) Apparatus and method for detecting weak magnetic fields having a saturable core shaped to cancel magnetic fields parallel to the core
SU1448047A1 (ru) Устройство дл определени трещиноватости горных пород
SU811160A1 (ru) Устройство дл геоэлектроразведки
KR100928532B1 (ko) 홀 소자를 이용한 금속체 검출용 픽업 장치
JPH10288673A (ja) 相互誘導式車両検出装置
SU1265501A1 (ru) Устройство дл измерени давлени
JPS57192877A (en) Measuring device for intensity of electromagnetic field
JPS62200280A (ja) 磁性体検出装置
JPH0711579B2 (ja) 深鉄筋探査方法
SU700846A1 (ru) Устройство дл измерени напр женности магнитного пол
SU932385A1 (ru) Устройство дл вихретокового контрол