CH656231A5 - Vorrichtung zur erkennung metallener gegenstaende. - Google Patents
Vorrichtung zur erkennung metallener gegenstaende. Download PDFInfo
- Publication number
- CH656231A5 CH656231A5 CH2774/82A CH277482A CH656231A5 CH 656231 A5 CH656231 A5 CH 656231A5 CH 2774/82 A CH2774/82 A CH 2774/82A CH 277482 A CH277482 A CH 277482A CH 656231 A5 CH656231 A5 CH 656231A5
- Authority
- CH
- Switzerland
- Prior art keywords
- coil
- signal
- amplitude
- transmitter coil
- transmitter
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims description 11
- 230000005672 electromagnetic field Effects 0.000 claims description 11
- 230000001419 dependent effect Effects 0.000 claims description 4
- 239000002800 charge carrier Substances 0.000 claims description 3
- 239000002360 explosive Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 238000010304 firing Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000003321 amplification Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 238000005293 physical law Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 239000011521 glass 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)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8102827A SE426269B (sv) | 1981-05-06 | 1981-05-06 | Anordning vid detektering av metallforemal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH656231A5 true CH656231A5 (de) | 1986-06-13 |
Family
ID=20343740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH2774/82A CH656231A5 (de) | 1981-05-06 | 1982-05-05 | Vorrichtung zur erkennung metallener gegenstaende. |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS57192887A (no) |
| BE (1) | BE893088A (no) |
| CA (1) | CA1198165A (no) |
| CH (1) | CH656231A5 (no) |
| DE (1) | DE3217033A1 (no) |
| FR (1) | FR2505508B1 (no) |
| GB (1) | GB2097933B (no) |
| IT (1) | IT1147941B (no) |
| NL (1) | NL8201811A (no) |
| NO (1) | NO821485L (no) |
| SE (1) | SE426269B (no) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59141001A (ja) * | 1983-02-01 | 1984-08-13 | Mitsubishi Electric Corp | 金属管の有効端末位置検出方法 |
| SE470289B (sv) * | 1992-11-04 | 1994-01-10 | Bofors Ab | Magnetiskt zonrör |
| US5426363A (en) * | 1993-04-26 | 1995-06-20 | Kabushiki Kaisha Honda Denshi Giken | Object detecting device |
| AU2009262370B2 (en) * | 2008-06-27 | 2014-11-27 | Minelab Electronics Pty Limited | Constant current metal detector with driven transmit coil |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB835128A (en) * | 1955-09-17 | 1960-05-18 | Asea Ab | Apparatus for examining a substance utilising the effect of the substance on the q factor of a resonant circuit |
| DE2052989C3 (de) * | 1970-10-30 | 1973-11-08 | Guenther Dipl.-Ing. 2209 Sushoern Weber | Durch einen oder mehrere sich be wegende Gegenstande auslosbares Schalt gerat |
| GB1448877A (en) * | 1973-09-04 | 1976-09-08 | Weber G | Electronic switching device for sensing a body and for converting such sensing into an electrical signal |
| GB1561641A (en) * | 1976-08-05 | 1980-02-27 | Redland Automation Ltd | Presence detector apparatus |
| LU75628A1 (no) * | 1976-08-19 | 1978-04-13 | ||
| DE2722498C3 (de) * | 1977-05-18 | 1982-02-04 | Walter Ing.(Grad.) 8728 Hassfurt Voll | Einrichtung an einem Kraftfahrzeug zur Anzeige eines Mindestabstandes |
| DE2722511A1 (de) * | 1977-05-18 | 1978-11-30 | Voll Walter | Metallsuchgeraet |
-
1981
- 1981-05-06 SE SE8102827A patent/SE426269B/sv not_active IP Right Cessation
-
1982
- 1982-04-22 GB GB8211642A patent/GB2097933B/en not_active Expired
- 1982-05-03 NL NL8201811A patent/NL8201811A/nl not_active Application Discontinuation
- 1982-05-04 JP JP57075053A patent/JPS57192887A/ja active Pending
- 1982-05-05 IT IT48333/82A patent/IT1147941B/it active
- 1982-05-05 FR FR8207818A patent/FR2505508B1/fr not_active Expired
- 1982-05-05 NO NO821485A patent/NO821485L/no unknown
- 1982-05-05 CH CH2774/82A patent/CH656231A5/de not_active IP Right Cessation
- 1982-05-05 CA CA000402340A patent/CA1198165A/en not_active Expired
- 1982-05-06 BE BE0/208015A patent/BE893088A/fr not_active IP Right Cessation
- 1982-05-06 DE DE19823217033 patent/DE3217033A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2097933B (en) | 1985-05-15 |
| NL8201811A (nl) | 1982-12-01 |
| DE3217033A1 (de) | 1982-11-25 |
| BE893088A (fr) | 1982-08-30 |
| JPS57192887A (en) | 1982-11-27 |
| NO821485L (no) | 1982-11-08 |
| FR2505508A1 (fr) | 1982-11-12 |
| IT8248333A0 (it) | 1982-05-05 |
| SE8102827L (sv) | 1982-11-07 |
| DE3217033C2 (no) | 1991-01-03 |
| FR2505508B1 (fr) | 1985-11-29 |
| SE426269B (sv) | 1982-12-20 |
| GB2097933A (en) | 1982-11-10 |
| IT1147941B (it) | 1986-11-26 |
| CA1198165A (en) | 1985-12-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |