NO895276L - Apparat for paavisning av uregelmessigheter i elektrisk ledende beholdervegger. - Google Patents

Apparat for paavisning av uregelmessigheter i elektrisk ledende beholdervegger.

Info

Publication number
NO895276L
NO895276L NO89895276A NO895276A NO895276L NO 895276 L NO895276 L NO 895276L NO 89895276 A NO89895276 A NO 89895276A NO 895276 A NO895276 A NO 895276A NO 895276 L NO895276 L NO 895276L
Authority
NO
Norway
Prior art keywords
irregularities
detection
electrically conductive
container walls
conductive container
Prior art date
Application number
NO89895276A
Other languages
English (en)
Other versions
NO302634B1 (no
NO895276D0 (no
Inventor
Michael F Gard
Original Assignee
Atlantic Richfield Co
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 Atlantic Richfield Co filed Critical Atlantic Richfield Co
Publication of NO895276D0 publication Critical patent/NO895276D0/no
Publication of NO895276L publication Critical patent/NO895276L/no
Publication of NO302634B1 publication Critical patent/NO302634B1/no

Links

Classifications

    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
NO895276A 1988-12-29 1989-12-27 Elektromagnetisk apparat for transient påvisning av uregelmessigheter i elektrisk ledende beholdervegger NO302634B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/291,608 US4906928A (en) 1988-12-29 1988-12-29 Transient electromagnetic apparatus with receiver having digitally controlled gain ranging amplifier for detecting irregularities on conductive containers

Publications (3)

Publication Number Publication Date
NO895276D0 NO895276D0 (no) 1989-12-27
NO895276L true NO895276L (no) 1990-07-02
NO302634B1 NO302634B1 (no) 1998-03-30

Family

ID=23121010

Family Applications (1)

Application Number Title Priority Date Filing Date
NO895276A NO302634B1 (no) 1988-12-29 1989-12-27 Elektromagnetisk apparat for transient påvisning av uregelmessigheter i elektrisk ledende beholdervegger

Country Status (7)

Country Link
US (1) US4906928A (no)
EP (1) EP0379804B1 (no)
JP (1) JP2834813B2 (no)
AU (1) AU612533B2 (no)
CA (1) CA2005549C (no)
DE (1) DE68915527T2 (no)
NO (1) NO302634B1 (no)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2005551C (en) * 1988-12-29 1999-08-31 Pedro F. Lara Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness
US5091725A (en) * 1989-08-18 1992-02-25 Atlantic Richfield Company Well logging tool and system having a switched mode power amplifier
FR2656930B1 (fr) * 1990-01-05 1992-10-02 Alcatel Radiotelephone Circuit de mesure numerique d'un signal electrique.
US5264804A (en) * 1992-02-05 1993-11-23 Kabushiki Kaisha Toshiba Lowpass filter with improved D.C. offset performance
FI90477C (fi) * 1992-03-23 1994-02-10 Nokia Mobile Phones Ltd Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään
FI93068C (fi) * 1992-07-27 1995-02-10 Nokia Mobile Phones Ltd Kytkentä häiriöiden haittavaikutusten pienentämiseksi sovitettua suodatinta käyttävissä vastaanottimissa
FI91579C (fi) * 1992-08-20 1994-07-11 Nokia Mobile Phones Ltd Dekoodaus käyttäen lineaarista metriciä ja häiriön estimointia
US5327298A (en) * 1992-09-10 1994-07-05 International Business Machines Corporation Noise minimization for magnetic data storage drives using oversampling techniques
JPH07218646A (ja) * 1994-01-28 1995-08-18 Takasago Seisakusho:Kk 金属探知方法
US5748891A (en) * 1994-07-22 1998-05-05 Aether Wire & Location Spread spectrum localizers
US5835050A (en) * 1995-11-03 1998-11-10 Lecroy Corporation Multi-range analog-to-digital converter with multi-range switching
US5694038A (en) * 1996-01-17 1997-12-02 Allegro Microsystems, Inc. Detector of passing magnetic articles with automatic gain control
US6242908B1 (en) 1996-01-17 2001-06-05 Allegro Microsystems, Inc. Detection of passing magnetic articles while adapting the detection threshold
US6525531B2 (en) 1996-01-17 2003-02-25 Allegro, Microsystems, Inc. Detection of passing magnetic articles while adapting the detection threshold
US5917320A (en) * 1996-01-17 1999-06-29 Allegro Microsystems, Inc. Detection of passing magnetic articles while periodically adapting detection threshold
US6297627B1 (en) 1996-01-17 2001-10-02 Allegro Microsystems, Inc. Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control
DE29608664U1 (de) * 1996-05-13 1997-09-18 Debnar Beinssen, Angelika, Dipl.-Ing., 20149 Hamburg Vorrichtung zum Werkstoffprüfen einer metallischen Wand
US6795491B2 (en) * 1999-07-22 2004-09-21 Aether Wire & Location Spread spectrum localizers
FR2797959B1 (fr) * 1999-08-26 2001-10-12 Siemens Automotive Sa Dispositif d'ajustement de gain pour un capteur de champ magnetique
US6963733B2 (en) 2001-10-31 2005-11-08 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for reducing the effect of AGC switching transients
US7668044B2 (en) * 2002-04-24 2010-02-23 Ascend Geo, Llc Data offload and charging systems and methods
US20060009911A1 (en) * 2002-04-24 2006-01-12 Ascend Geo, Llc Methods and systems for acquiring and processing seismic data
US7365530B2 (en) * 2004-04-08 2008-04-29 Allegro Microsystems, Inc. Method and apparatus for vibration detection
US7304829B2 (en) * 2005-02-16 2007-12-04 General Electric Company Apparatus and method for filtering current sensor output signals
GB2423366B (en) * 2005-02-16 2010-02-24 Cintex Ltd Metal detector
US7253614B2 (en) * 2005-03-21 2007-08-07 Allegro Microsystems, Inc. Proximity detector having a sequential flow state machine
US7362094B2 (en) * 2006-01-17 2008-04-22 Allegro Microsystems, Inc. Methods and apparatus for magnetic article detection
GB201006733D0 (en) * 2010-04-22 2010-06-09 Liverpool John Moores University An electromagnetic sensor
US8598867B2 (en) 2010-06-04 2013-12-03 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a motion detector
EP2439560B1 (en) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Method for monitoring the operation of a metal detection system and metal detection system
EP2439559B1 (en) 2010-10-07 2013-05-29 Mettler-Toledo Safeline Limited Method for operating of a metal detection system and metal detection system
BR112013008207B1 (pt) 2010-10-07 2021-06-01 Mettler-Toledo Safeline Limited Método para operar um sistema de detecção de metal e um sistema de detecção de metal
US9018935B2 (en) 2011-09-19 2015-04-28 Mettler-Toledo Safeline Limited Method for operating a metal detection apparatus and apparatus
US9520871B2 (en) 2012-01-05 2016-12-13 Allegro Microsystems, Llc Methods and apparatus for supply voltage transient protection for maintaining a state of a sensor output signal
US9329057B2 (en) 2012-05-31 2016-05-03 Allegro Microsystems, Llc Gear tooth sensor with peak and threshold detectors
CN102944340B (zh) * 2012-11-10 2014-07-23 大连理工大学 一种用于压电智能骨料地震损伤监测系统的电荷电压转换器
US8723512B1 (en) 2012-11-26 2014-05-13 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a magnetic field sensor based on a peak signal associated with a prior cycle of a magnetic field signal
EP3036547A2 (en) 2013-08-30 2016-06-29 Allegro Microsystems, LLC Circuits and methods for generating a threshold signal used in a motion detector in accordance with a least common multiple of a set of possible quantities of features upon a target
EP3117187B1 (en) 2014-03-11 2018-06-13 Allegro MicroSystems, LLC Magnetic field sensor maintaining a minimal separation of thresholds, and corresponding sensing method
CN107797150B (zh) * 2017-11-22 2023-09-15 中国地质大学（武汉） 一种瞬变电磁仪接收机
US11125590B2 (en) 2019-05-07 2021-09-21 Allegro Microsystems, Llc System and method for vibration detection with direction change response immunity using a magnetic field sensor
US11029176B2 (en) 2019-05-07 2021-06-08 Allegro Microsystems, Llc System and method for vibration detection with no loss of position information using a magnetic field sensor
CN110255118B (zh) * 2019-06-04 2021-01-05 仵军红 一种具有筛选功能的食品检测传送装置
CN112179980B (zh) * 2020-10-27 2022-06-14 电子科技大学 一种基于阵列涡流的旋压筒体表面缺陷在线自动识别方法
CN115390148B (zh) * 2022-07-21 2024-12-06 吉林大学 一种大动态范围地空瞬变电磁探测接收系统及方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US424784A (en) * 1890-04-01 Frederick henkel
DE1698481B1 (de) 1963-02-18 1969-09-04 Claus Colani Vorrichtung zur Untersuchung eines relativ homogenen,gegebenenfalls eine gewisse elektrische Leitfaehigkeit aufweisenden Mediums
JPS4731652A (no) * 1966-02-22 1972-11-13
US3685047A (en) * 1970-07-31 1972-08-15 Sds Data Systems Inc Seismic amplifiers
US3707672A (en) * 1971-06-02 1972-12-26 Westinghouse Electric Corp Weapon detector utilizing the pulsed field technique to detect weapons on the basis of weapons thickness
US3790886A (en) * 1971-10-04 1974-02-05 Keithley Instruments Electrical measurement instrument having an improved analog to digital converter
US3819864A (en) * 1973-03-30 1974-06-25 Texas Instruments Inc Digital dc offset removal method for data systems
US4016557A (en) * 1975-05-08 1977-04-05 Westinghouse Electric Corporation Automatic gain controlled amplifier apparatus
US4027281A (en) * 1975-10-03 1977-05-31 Standard Oil Company Digital recording of sonic log wavetrains
DE2825958C2 (de) * 1978-06-14 1986-02-20 Institut Dr. Friedrich Förster Prüfgerätebau GmbH & Co KG, 7410 Reutlingen Magnetisches oder magnetinduktives Werkstoffprüfgerät mit Nullpunktkompensationseinrichtung
US4247821A (en) * 1978-07-20 1981-01-27 Commonwealth Scientific And Industrial Research Organization Transient electromagnetic prospecting apparatus possessing noise supression features
GB8303587D0 (en) * 1983-02-09 1983-03-16 Chapman Cash Processing Ltd Coin discriminating apparatus
US4600356A (en) * 1984-01-27 1986-07-15 Gas Research Institute Underground pipeline and cable detector and process
FR2606956A1 (fr) * 1986-11-14 1988-05-20 Radiotechnique Compelec Dispositif de conversion analogique-numerique comportant un dispositif de controle automatique de gain
US4843320A (en) * 1987-12-17 1989-06-27 Atlantic Richfield Company Transient electromagnetic method for detecting corrosion on conductive containers
US4929898A (en) * 1987-12-17 1990-05-29 Atlantic Richfield Transient electromagnetic method for detecting irregularities on conductive containers
CA2005551C (en) * 1988-12-29 1999-08-31 Pedro F. Lara Transient electromagnetic method for detecting irregularities on conductive containers having variations in jacket thickness

Also Published As

Publication number Publication date
DE68915527D1 (de) 1994-06-30
CA2005549A1 (en) 1990-06-29
HK1005471A1 (en) 1999-01-08
CA2005549C (en) 2000-04-25
EP0379804A2 (en) 1990-08-01
NO302634B1 (no) 1998-03-30
NO895276D0 (no) 1989-12-27
EP0379804A3 (en) 1991-03-06
EP0379804B1 (en) 1994-05-25
US4906928A (en) 1990-03-06
AU612533B2 (en) 1991-07-11
AU4736489A (en) 1990-07-05
DE68915527T2 (de) 1994-10-20
JPH02298852A (ja) 1990-12-11
JP2834813B2 (ja) 1998-12-14

Similar Documents

Publication Publication Date Title
NO895276D0 (no) Apparat for paavisning av uregelmessigheter i elektrisk ledende beholdervegger.
NO900664D0 (no) Apparat for maaling av resistivitet i poroese bergarter.
NO895275L (no) Fremgangsmaate for aa paavirke uregelmessigheter i elektriskledende beholdervegger.
AU2594288A (en) Bottle bottom inspection apparatus
FR2638437B1 (fr) Appareil transporteur equipe de balancelles en forme de l
NO177167C (no) Apparat for bestemmelse av posisjon
EP0300864A3 (en) Apparatus for the detection of integrated-circuit de-passivation
DE3670374D1 (de) Vorrichtung zum ermitteln von hochspannungsleitungen.
GB2213582B (en) Agglutination detection apparatus
GB2066966B (en) Inspecting the width of paneled containers electrically
MX151679A (es) Mejoras en aparato para la deteccion de anomalias en miembros giratorios electricamente conductores
EP0334536A3 (en) Particle measuring apparatus
GB8821085D0 (en) Liquid detection apparatus
GB2223573B (en) Voltage measuring apparatus
DK174784D0 (da) Fremgangsmaade,apparat samt hylstre til stopning
NO864840D0 (no) Fremgangsmaate ved bleking av cellulosemasse og apparat for utfoerelse av fremgangsmaaten.
NO895277D0 (no) Fremgangsmaate for paavisning av uregelmessigheter i elektrisk ledende beholdervegger.
IL62250A0 (en) Cylindrical members having means for the in situ detection of cracks therein
EP0223159A3 (en) Apparatus for determining the northerly direction
FR2610114B1 (fr) Procede et appareillage de detection continue des variations du type ou de l'etat des roches avoisinant un tunnelier par une methode electrique
FI892141A0 (fi) Apparat foer uppdelning av en suspension av en fiberhaltig cellulosamassa.
EP0348982A3 (en) Apparatus for detecting surface potential distribution
GB8708167D0 (en) Detection apparatus
GB8819552D0 (en) Moisture detection apparatus
DE68919034D1 (de) Entladungsverfahren in einem elektrophotographischen Gerät.