FR1168757A - Electronic device for the detection of metallic objects - Google Patents
Electronic device for the detection of metallic objectsInfo
- Publication number
- FR1168757A FR1168757A FR1168757DA FR1168757A FR 1168757 A FR1168757 A FR 1168757A FR 1168757D A FR1168757D A FR 1168757DA FR 1168757 A FR1168757 A FR 1168757A
- Authority
- FR
- France
- Prior art keywords
- detection
- electronic device
- metallic objects
- metallic
- objects
- 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
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
- G01V3/101—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
- G01V3/102—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 by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1168757T | 1957-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1168757A true FR1168757A (en) | 1958-12-16 |
Family
ID=9656190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1168757D Expired FR1168757A (en) | 1957-03-02 | 1957-03-02 | Electronic device for the detection of metallic objects |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1168757A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3226634A (en) * | 1961-03-23 | 1965-12-28 | Frank M Shoemaker | Transistorized metal detector with temperature compensation means |
US3503007A (en) * | 1967-09-20 | 1970-03-24 | Buchungsmachinenwerk Karl Marx | Controllable oscillator |
-
1957
- 1957-03-02 FR FR1168757D patent/FR1168757A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3226634A (en) * | 1961-03-23 | 1965-12-28 | Frank M Shoemaker | Transistorized metal detector with temperature compensation means |
US3503007A (en) * | 1967-09-20 | 1970-03-24 | Buchungsmachinenwerk Karl Marx | Controllable oscillator |
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