NO812076L - Anordning for deteksjon i faststoffer, vaesker eller gasser av de inneholdte metallpartikler, deres posisjon og bestemmelse av deres stoerrelse - Google Patents
Anordning for deteksjon i faststoffer, vaesker eller gasser av de inneholdte metallpartikler, deres posisjon og bestemmelse av deres stoerrelseInfo
- Publication number
- NO812076L NO812076L NO812076A NO812076A NO812076L NO 812076 L NO812076 L NO 812076L NO 812076 A NO812076 A NO 812076A NO 812076 A NO812076 A NO 812076A NO 812076 L NO812076 L NO 812076L
- Authority
- NO
- Norway
- Prior art keywords
- transmitter
- size
- receiver
- metal particles
- gases
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title claims description 5
- 239000002923 metal particle Substances 0.000 title description 3
- 239000007787 solid Substances 0.000 title description 2
- 239000007789 gas Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 title 1
- 230000003071 parasitic effect Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 230000005291 magnetic effect Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001629 suppression Effects 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Biochemistry (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7926116A FR2468133A1 (fr) | 1979-10-22 | 1979-10-22 | Dispositif permettant de detecter dans les solides, des liquides ou des gaz les particules metalliques incluses, de les localiser et d'en determiner la taille |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO812076L true NO812076L (no) | 1981-06-18 |
Family
ID=9230881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO812076A NO812076L (no) | 1979-10-22 | 1981-06-18 | Anordning for deteksjon i faststoffer, vaesker eller gasser av de inneholdte metallpartikler, deres posisjon og bestemmelse av deres stoerrelse |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0038326A1 (fr) |
| JP (1) | JPS56501382A (fr) |
| BR (1) | BR8008878A (fr) |
| DK (1) | DK275081A (fr) |
| ES (1) | ES510409A0 (fr) |
| FR (1) | FR2468133A1 (fr) |
| NO (1) | NO812076L (fr) |
| WO (1) | WO1981001198A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2158240B (en) * | 1984-04-26 | 1988-01-27 | Standard Telephones Cables Ltd | A null-balanced proximity sensor |
| DE3436498C2 (de) * | 1984-10-05 | 1994-08-25 | Truetzschler Gmbh & Co Kg | Vorrichtung zum Ermitteln von Fremdkörpern, wie Metallteilen, in Textilfaserballen |
| JPS6454281A (en) * | 1987-08-25 | 1989-03-01 | Anritsu Corp | Metal detecting apparatus |
| GB2230611B (en) * | 1989-03-30 | 1993-02-03 | Cintex Ltd | Product monitoring |
| FR2692365B1 (fr) * | 1992-06-15 | 1998-04-30 | Jacques Clausin | Dispositif de localisation et d'evaluation des volumes d'objets ferromagnetiques. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765007A (en) * | 1969-07-11 | 1973-10-09 | Minnesota Mining & Mfg | Method and apparatus for detecting at a distance the status and identity of objects |
| US3686564A (en) * | 1970-10-08 | 1972-08-22 | Westinghouse Electric Corp | Multiple frequency magnetic field technique for differentiating between classes of metal objects |
| US4326198A (en) * | 1976-08-18 | 1982-04-20 | Knogo Corporation | Method and apparatus for the promotion of selected harmonic response signals in an article detection system |
-
1979
- 1979-10-22 FR FR7926116A patent/FR2468133A1/fr active Granted
-
1980
- 1980-04-11 WO PCT/FR1980/000057 patent/WO1981001198A1/fr not_active Application Discontinuation
- 1980-04-11 BR BR8008878A patent/BR8008878A/pt unknown
- 1980-04-11 JP JP50076080A patent/JPS56501382A/ja active Pending
-
1981
- 1981-05-04 EP EP80900665A patent/EP0038326A1/fr not_active Ceased
- 1981-06-18 NO NO812076A patent/NO812076L/no unknown
- 1981-06-22 DK DK275081A patent/DK275081A/da not_active Application Discontinuation
-
1982
- 1982-03-13 ES ES510409A patent/ES510409A0/es active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| BR8008878A (pt) | 1981-08-25 |
| ES8304323A3 (es) | 1983-02-01 |
| ES510409A0 (es) | 1983-02-01 |
| DK275081A (da) | 1981-06-22 |
| JPS56501382A (fr) | 1981-09-24 |
| WO1981001198A1 (fr) | 1981-04-30 |
| FR2468133A1 (fr) | 1981-04-30 |
| EP0038326A1 (fr) | 1981-10-28 |
| FR2468133B1 (fr) | 1984-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3758849A (en) | Metal detector system having identical balanced field coil system on opposite sides of a detection zone | |
| US6559645B2 (en) | Detector apparatus and method | |
| US3471772A (en) | Instrument for measuring the range and approximate size of buried or hidden metal objects | |
| US2929984A (en) | Method and apparatus for qualitative electromagnetic surveying | |
| US9442143B2 (en) | Capacitive proximity sensor as well as method for capacitive approximation detection | |
| GB2361544A (en) | Metal detector | |
| GB1350273A (en) | Apparatus for detecting preselected classes of metal objects | |
| CA1080821A (fr) | Detecteur de metal | |
| US3609527A (en) | Noncontacting proximity gage utilizing induced eddy currents,having improved dynamic response and interference discrimination | |
| US2919397A (en) | Method and apparatus for inductive prospecting | |
| US3105934A (en) | Method and apparatus for the remote detection of ore bodies utilizing pulses of short duration to induce transient polarization in the ore bodies | |
| US20200400853A1 (en) | Fluxgate detector for buried and abandoned chemical weapons | |
| US3263160A (en) | Time domain electromagnetic induction method and apparatus for detection of massive sulfide ore bodies utilizing pulses of asymmetric waveform | |
| US3588687A (en) | Sensing coil arrangement for a metal detector | |
| EP0096568A1 (fr) | Système de détection de métal | |
| GB2057136A (en) | Electrostatic shields | |
| US3048775A (en) | Apparatus for measuring small distances | |
| SU448656A3 (ru) | Устройство дл обнаружени магнитных или немагнитных провод щих тел на конвейере | |
| NO812076L (no) | Anordning for deteksjon i faststoffer, vaesker eller gasser av de inneholdte metallpartikler, deres posisjon og bestemmelse av deres stoerrelse | |
| EP3158369A1 (fr) | Système de localisation de ligne pourvu d'un détecteur de métaux | |
| Ambruš et al. | Automatic compensation of primary field coupling for a frequency-domain electromagnetic induction sensor | |
| EP0261142A1 (fr) | Detection de metal dans des supports conducteurs utilisant un signal a double frequence | |
| US6362625B1 (en) | Active magnetic anomaly sensing system having synchronized transceiver and discriminator | |
| US2403955A (en) | Electron tube circuit | |
| US2807777A (en) | Coil assembly for geophysical prospecting |