FR2268274B2 - - Google Patents
Info
- Publication number
- FR2268274B2 FR2268274B2 FR7413630A FR7413630A FR2268274B2 FR 2268274 B2 FR2268274 B2 FR 2268274B2 FR 7413630 A FR7413630 A FR 7413630A FR 7413630 A FR7413630 A FR 7413630A FR 2268274 B2 FR2268274 B2 FR 2268274B2
- Authority
- FR
- France
- 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
- G01V3/104—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
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7413630A FR2268274A2 (en) | 1974-04-17 | 1974-04-17 | Electromagnetic metal detector - has amplifier capacitor allowing metal movement to be detected only |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7413630A FR2268274A2 (en) | 1974-04-17 | 1974-04-17 | Electromagnetic metal detector - has amplifier capacitor allowing metal movement to be detected only |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2268274A2 FR2268274A2 (en) | 1975-11-14 |
| FR2268274B2 true FR2268274B2 (OSRAM) | 1978-05-05 |
Family
ID=9137840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7413630A Granted FR2268274A2 (en) | 1974-04-17 | 1974-04-17 | Electromagnetic metal detector - has amplifier capacitor allowing metal movement to be detected only |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2268274A2 (OSRAM) |
-
1974
- 1974-04-17 FR FR7413630A patent/FR2268274A2/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2268274A2 (en) | 1975-11-14 |