GB1570640A - Magnetic detector - Google Patents

Magnetic detector Download PDF

Info

Publication number
GB1570640A
GB1570640A GB401577A GB401577A GB1570640A GB 1570640 A GB1570640 A GB 1570640A GB 401577 A GB401577 A GB 401577A GB 401577 A GB401577 A GB 401577A GB 1570640 A GB1570640 A GB 1570640A
Authority
GB
United Kingdom
Prior art keywords
ferromagnetic
detector
particles
search coils
swarf
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.)
Expired
Application number
GB401577A
Other languages
English (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.)
IMI Kynoch Ltd
Science Research Council
Original Assignee
IMI Kynoch Ltd
Science Research Council
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 IMI Kynoch Ltd, Science Research Council filed Critical IMI Kynoch Ltd
Priority to GB401577A priority Critical patent/GB1570640A/en
Priority to DE19782804090 priority patent/DE2804090A1/de
Priority to FR7802708A priority patent/FR2379077A1/fr
Priority to CA296,268A priority patent/CA1122669A/en
Priority to JP1037778A priority patent/JPS53121648A/ja
Publication of GB1570640A publication Critical patent/GB1570640A/en
Expired legal-status Critical Current

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
    • 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
    • G01V3/105—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 forming directly coupled primary and secondary coils or loops
    • G01V3/107—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 forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (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)
GB401577A 1977-02-01 1977-02-01 Magnetic detector Expired GB1570640A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB401577A GB1570640A (en) 1977-02-01 1977-02-01 Magnetic detector
DE19782804090 DE2804090A1 (de) 1977-02-01 1978-01-31 Verfahren und vorrichtung zum aufspueren von ferromagnetischem material in einer matrix aus nicht-ferromagnetischem material
FR7802708A FR2379077A1 (fr) 1977-02-01 1978-01-31 Procede et appareil de detection d'une matiere ferromagnetique dans une masse de matiere non ferromagnetique
CA296,268A CA1122669A (en) 1977-02-01 1978-02-01 Magnetic detector
JP1037778A JPS53121648A (en) 1977-02-01 1978-02-01 Detecting method of ferromagnetic substances and apparatus for carrying out the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB401577A GB1570640A (en) 1977-02-01 1977-02-01 Magnetic detector

Publications (1)

Publication Number Publication Date
GB1570640A true GB1570640A (en) 1980-07-02

Family

ID=9769153

Family Applications (1)

Application Number Title Priority Date Filing Date
GB401577A Expired GB1570640A (en) 1977-02-01 1977-02-01 Magnetic detector

Country Status (5)

Country Link
JP (1) JPS53121648A (enrdf_load_stackoverflow)
CA (1) CA1122669A (enrdf_load_stackoverflow)
DE (1) DE2804090A1 (enrdf_load_stackoverflow)
FR (1) FR2379077A1 (enrdf_load_stackoverflow)
GB (1) GB1570640A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235981A (en) * 1989-09-15 1991-03-20 Hitech Metal Detectors Ltd Metal detecting apparatus and apparatus for testing metal detecting apparatus
WO1992001956A1 (en) * 1990-07-20 1992-02-06 John Lysaght (Australia) Limited Strip position sensor
CN112824871A (zh) * 2019-11-20 2021-05-21 中国南方电网有限责任公司超高压输电公司贵阳局 基于瞬变电磁视电阻率成像技术的接地网缺陷诊断方法
CN116380163A (zh) * 2023-03-29 2023-07-04 青岛峻海物联科技有限公司 一种用于物联网的智能环境数据采集的传感装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494447A1 (fr) * 1980-11-14 1982-05-21 Radiotechnique Procede pour detecter la presence d'une piece metallique, notamment en mouvement, et dispositif de mise en oeuvre de ce procede
DE3840848A1 (de) * 1988-12-03 1990-06-07 Draegerwerk Ag Werkstoff mit vorgebbarer magnetischer suszeptibilitaet
DE19830584C2 (de) * 1997-10-11 2001-11-22 Mesutronic Geraetebau Gmbh Aufnehmer-Vorrichtung
DE19954716B4 (de) * 1999-11-13 2006-08-31 Mesutronic Gerätebau GmbH Funktionsprüfung für einen Metalldetektor
CN104549726B (zh) * 2015-01-04 2017-01-25 湖北省地质勘查装备中心 中磁电磁分选仪
US10274630B2 (en) 2015-06-02 2019-04-30 Syncrude Canada Ltd. In Trust For The Owners Of The Syncrude Project As Such Owners Exist Now And In The Future Tramp metal detection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045769A (en) * 1928-05-31 1936-06-30 Rca Corp Electrical control circuit
US2315045A (en) * 1939-10-09 1943-03-30 Illinois Testing Laboratories Metal detection device
US2444751A (en) * 1946-02-12 1948-07-06 Western Electric Co Method and apparatus for sorting magnetic materials according to their residual magnetism
FR928347A (fr) * 1946-05-20 1947-11-25 Perfectionnements aux dispositifs pour détecter les corps ferreux ou magnétiques ou les irrégularités qui existent dans les objets ferreux ou magnétiques
JPS51120792A (en) * 1975-04-16 1976-10-22 Densoku Kogyo Kk Device for detecting metals mixed in fluids

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235981A (en) * 1989-09-15 1991-03-20 Hitech Metal Detectors Ltd Metal detecting apparatus and apparatus for testing metal detecting apparatus
US5160885A (en) * 1989-09-15 1992-11-03 Hitech Metal Detectors Limited Metal detecting apparatus and apparatus including guide housing for guiding a metal test piece, for testing metal detecting apparatus
AU641679B2 (en) * 1989-09-15 1993-09-30 Hitech Metal Detectors Limited Metal detecting apparatus and apparatus for testing metal detecting apparatus
GB2235981B (en) * 1989-09-15 1994-06-15 Hitech Metal Detectors Ltd Metal detecting apparatus and apparatus for testing metal detecting apparatus
WO1992001956A1 (en) * 1990-07-20 1992-02-06 John Lysaght (Australia) Limited Strip position sensor
CN112824871A (zh) * 2019-11-20 2021-05-21 中国南方电网有限责任公司超高压输电公司贵阳局 基于瞬变电磁视电阻率成像技术的接地网缺陷诊断方法
CN112824871B (zh) * 2019-11-20 2022-11-15 中国南方电网有限责任公司超高压输电公司贵阳局 基于瞬变电磁视电阻率成像技术的接地网缺陷诊断方法
CN116380163A (zh) * 2023-03-29 2023-07-04 青岛峻海物联科技有限公司 一种用于物联网的智能环境数据采集的传感装置
CN116380163B (zh) * 2023-03-29 2024-01-19 青岛峻海物联科技有限公司 一种用于物联网的智能环境数据采集的传感装置

Also Published As

Publication number Publication date
CA1122669A (en) 1982-04-27
FR2379077B1 (enrdf_load_stackoverflow) 1984-05-25
FR2379077A1 (fr) 1978-08-25
DE2804090A1 (de) 1978-08-24
JPS53121648A (en) 1978-10-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee