DE2549274A1 - Kapazitiver annaeherungsdetektor - Google Patents
Kapazitiver annaeherungsdetektorInfo
- Publication number
- DE2549274A1 DE2549274A1 DE19752549274 DE2549274A DE2549274A1 DE 2549274 A1 DE2549274 A1 DE 2549274A1 DE 19752549274 DE19752549274 DE 19752549274 DE 2549274 A DE2549274 A DE 2549274A DE 2549274 A1 DE2549274 A1 DE 2549274A1
- Authority
- DE
- Germany
- Prior art keywords
- signal
- oscillator
- circuit
- rothenburger
- diode
- 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.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 241000475699 Euphaedusa digonoptyx comes Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process 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
-
- 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
- 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)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7436906A FR2290653A1 (fr) | 1974-11-07 | 1974-11-07 | Detecteur capacitif de proximite d'objets de toute nature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2549274A1 true DE2549274A1 (de) | 1976-05-13 |
Family
ID=9144735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752549274 Withdrawn DE2549274A1 (de) | 1974-11-07 | 1975-11-04 | Kapazitiver annaeherungsdetektor |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2549274A1 (https=) |
| FR (1) | FR2290653A1 (https=) |
-
1974
- 1974-11-07 FR FR7436906A patent/FR2290653A1/fr active Granted
-
1975
- 1975-11-04 DE DE19752549274 patent/DE2549274A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2290653A1 (fr) | 1976-06-04 |
| FR2290653B3 (https=) | 1977-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |