IT1238609B - Metodo per rivelare oggetti metallici - Google Patents

Metodo per rivelare oggetti metallici

Info

Publication number
IT1238609B
IT1238609B IT19165A IT1916590A IT1238609B IT 1238609 B IT1238609 B IT 1238609B IT 19165 A IT19165 A IT 19165A IT 1916590 A IT1916590 A IT 1916590A IT 1238609 B IT1238609 B IT 1238609B
Authority
IT
Italy
Prior art keywords
metallic objects
detecting metallic
detecting
objects
metallic
Prior art date
Application number
IT19165A
Other languages
English (en)
Other versions
IT9019165A1 (it
IT9019165A0 (it
Inventor
Kari Timo Johannes Aittoniemi
Ari Tapani Jarvi
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Publication of IT9019165A0 publication Critical patent/IT9019165A0/it
Publication of IT9019165A1 publication Critical patent/IT9019165A1/it
Application granted granted Critical
Publication of IT1238609B publication Critical patent/IT1238609B/it

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

  • 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)
IT19165A 1989-01-31 1990-01-26 Metodo per rivelare oggetti metallici IT1238609B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI890463A FI84208C (fi) 1989-01-31 1989-01-31 Foerfarande foer detektering av metallfoeremaol.

Publications (3)

Publication Number Publication Date
IT9019165A0 IT9019165A0 (it) 1990-01-26
IT9019165A1 IT9019165A1 (it) 1990-08-01
IT1238609B true IT1238609B (it) 1993-08-18

Family

ID=8527813

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19165A IT1238609B (it) 1989-01-31 1990-01-26 Metodo per rivelare oggetti metallici

Country Status (6)

Country Link
US (1) US5047718A (it)
CA (1) CA2008783A1 (it)
DE (1) DE4002829C2 (it)
FI (1) FI84208C (it)
GB (1) GB2228332B (it)
IT (1) IT1238609B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493517A (en) * 1991-06-03 1996-02-20 Hughes Missile Systems Company Cargo container mapping system
US5506506A (en) * 1992-01-14 1996-04-09 Halcro Nominees Pty Ltd. Metal detector for detecting and discriminating between ferrous and non-ferrous targets in ground
DE4417931C1 (de) * 1994-05-19 1995-08-17 Inst Umwelttechnologien Gmbh Schaltungsanordnung zur Wahrnehmung und Ortung von Metallgegenständen
DE19510506C2 (de) * 1995-03-23 1997-06-05 Vallon Gmbh Verfahren und Meßeinrichtung zur Metalldetektion mittels einer Spulenanordnung mit mehreren separat ansteuerbaren Bereichen
DE19610003C1 (de) * 1996-03-14 1997-08-28 Vallon Gmbh Metalldetektionsvorrichtung mit mindestens einem Metalldetektor mit Richtwirkung zur Untersuchung von Biotonnen
US6879161B2 (en) * 2002-02-11 2005-04-12 White's Electronics, Inc. Method and apparatus for distinguishing metal objects employing multiple frequency interrogation
US6911823B2 (en) 2002-02-11 2005-06-28 White's Electronics, Inc. Metal detector employing static discrimination
US7649356B2 (en) * 2002-12-18 2010-01-19 White's Electronics, Inc. Pulse induction metal detector having high energy efficiency and sensitivity
CA2675587C (en) 2007-01-15 2017-04-11 Rapiscan Systems, Inc. Magnetic detector security systems
EP2156419B1 (en) 2007-04-13 2011-12-28 Alert Metalguard ApS A method, a device and a system for preventing false alarms in a theft-preventing system
US11280898B2 (en) 2014-03-07 2022-03-22 Rapiscan Systems, Inc. Radar-based baggage and parcel inspection systems

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686564A (en) * 1970-10-08 1972-08-22 Westinghouse Electric Corp Multiple frequency magnetic field technique for differentiating between classes of metal objects
GB1315684A (en) * 1970-11-10 1973-05-02 Foster E J Metal detectors
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
US3986104A (en) * 1976-01-19 1976-10-12 Robert F. Gardiner Dual frequency metal detector system
GB2110825B (en) * 1981-11-06 1986-04-30 Outokumpu Oy Apparatus for detecting metal objects
SE430545B (sv) * 1982-04-01 1983-11-21 Asea Ab Anordning for detektering av metallforemal i ett materialflode
DE3439369A1 (de) * 1984-10-27 1986-04-30 AMP Angewandte Meßtechnik und Prozeßsteuerung GmbH, 5100 Aachen Verfahren und vorrichtung zum detektieren von schlacke
FI79618C (fi) * 1986-08-15 1990-01-10 Outokumpu Oy Saett och anordning foer detektering av metallkroppar.
GB8700509D0 (en) * 1987-01-09 1987-02-11 Kolectric Ltd Measuring proximity of metal object

Also Published As

Publication number Publication date
FI84208C (fi) 1991-10-25
US5047718A (en) 1991-09-10
GB9001819D0 (en) 1990-03-28
FI890463A0 (fi) 1989-01-31
CA2008783A1 (en) 1990-07-31
FI84208B (fi) 1991-07-15
GB2228332B (en) 1993-12-08
IT9019165A1 (it) 1990-08-01
DE4002829A1 (de) 1990-08-02
DE4002829C2 (de) 1998-08-27
FI890463L (fi) 1990-08-01
GB2228332A (en) 1990-08-22
IT9019165A0 (it) 1990-01-26

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981231