NO820415L - Apparat til detektering av gjenstander som inneholder et bestemt metall, f.eks. aluminium - Google Patents
Apparat til detektering av gjenstander som inneholder et bestemt metall, f.eks. aluminiumInfo
- Publication number
- NO820415L NO820415L NO820415A NO820415A NO820415L NO 820415 L NO820415 L NO 820415L NO 820415 A NO820415 A NO 820415A NO 820415 A NO820415 A NO 820415A NO 820415 L NO820415 L NO 820415L
- Authority
- NO
- Norway
- Prior art keywords
- signal
- test area
- drive signal
- metal
- aluminum
- Prior art date
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 48
- 229910052782 aluminium Inorganic materials 0.000 title claims description 48
- 229910052751 metal Inorganic materials 0.000 title claims description 27
- 239000002184 metal Substances 0.000 title claims description 27
- 238000001514 detection method Methods 0.000 title claims description 7
- 238000012360 testing method Methods 0.000 claims description 50
- 230000005291 magnetic effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 11
- 239000004411 aluminium Substances 0.000 description 7
- 238000004064 recycling Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
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 Non-Biological Materials By The Use Of Chemical Means (AREA)
- Fats And Perfumes (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24802281A | 1981-03-26 | 1981-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO820415L true NO820415L (no) | 1982-09-27 |
Family
ID=22937328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO820415A NO820415L (no) | 1981-03-26 | 1982-02-12 | Apparat til detektering av gjenstander som inneholder et bestemt metall, f.eks. aluminium |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0062396A3 (pt) |
| JP (1) | JPS57161678A (pt) |
| AU (1) | AU8034782A (pt) |
| BR (1) | BR8201441A (pt) |
| DK (1) | DK64982A (pt) |
| NO (1) | NO820415L (pt) |
| PT (1) | PT74458B (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60168294A (ja) * | 1984-02-13 | 1985-08-31 | 高根 重信 | 防犯装置 |
| US4839602A (en) * | 1986-11-04 | 1989-06-13 | Philip Morris Incorporated | Means for detecting metal in a stream of particulate matter |
| DE4038017A1 (de) * | 1990-11-29 | 1992-06-04 | Ego Elektro Blanc & Fischer | Elektrokochplatte |
| FR2701140A1 (fr) * | 1993-02-01 | 1994-08-05 | Tech Innovations Medicales | Dispositif de comptage des compresses chirurgicales. |
| DE10045697A1 (de) * | 2000-09-15 | 2002-03-28 | Ebinger Klaus | Verfahren zum Orten von Objekten und Detektorvorrichtung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3676772A (en) * | 1970-08-18 | 1972-07-11 | Nasa | Metallic intrusion detector system |
| US4095180A (en) * | 1975-12-29 | 1978-06-13 | K. J. Law Engineers, Inc. | Method and apparatus for testing conductivity using eddy currents |
| FR2371675A1 (fr) * | 1976-11-19 | 1978-06-16 | Thomson Csf | Capteur electromagnetique sensible a une modification d'un champ magnetique et son application a la circulation routiere |
-
1982
- 1982-02-09 EP EP82300631A patent/EP0062396A3/en not_active Withdrawn
- 1982-02-10 AU AU80347/82A patent/AU8034782A/en not_active Abandoned
- 1982-02-12 NO NO820415A patent/NO820415L/no unknown
- 1982-02-15 DK DK64982A patent/DK64982A/da not_active Application Discontinuation
- 1982-02-19 PT PT74458A patent/PT74458B/pt unknown
- 1982-02-25 JP JP57028235A patent/JPS57161678A/ja active Pending
- 1982-03-16 BR BR8201441A patent/BR8201441A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57161678A (en) | 1982-10-05 |
| PT74458B (en) | 1983-11-15 |
| EP0062396A2 (en) | 1982-10-13 |
| PT74458A (en) | 1982-03-01 |
| DK64982A (da) | 1982-09-27 |
| BR8201441A (pt) | 1983-02-01 |
| EP0062396A3 (en) | 1983-06-22 |
| AU8034782A (en) | 1982-09-30 |
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