FR2624982B1 - Dispositif de detection de proximite de champ electrique - Google Patents
Dispositif de detection de proximite de champ electriqueInfo
- Publication number
- FR2624982B1 FR2624982B1 FR8717917A FR8717917A FR2624982B1 FR 2624982 B1 FR2624982 B1 FR 2624982B1 FR 8717917 A FR8717917 A FR 8717917A FR 8717917 A FR8717917 A FR 8717917A FR 2624982 B1 FR2624982 B1 FR 2624982B1
- Authority
- FR
- France
- Prior art keywords
- electric field
- detection device
- proximity detection
- field proximity
- electric
- 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 - Lifetime
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
- G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Details Of Aerials (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8717917A FR2624982B1 (fr) | 1987-12-22 | 1987-12-22 | Dispositif de detection de proximite de champ electrique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8717917A FR2624982B1 (fr) | 1987-12-22 | 1987-12-22 | Dispositif de detection de proximite de champ electrique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2624982A1 FR2624982A1 (fr) | 1989-06-23 |
| FR2624982B1 true FR2624982B1 (fr) | 1990-04-27 |
Family
ID=9358153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8717917A Expired - Lifetime FR2624982B1 (fr) | 1987-12-22 | 1987-12-22 | Dispositif de detection de proximite de champ electrique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2624982B1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2343956B (en) * | 1998-09-18 | 2003-09-03 | Safe Flight Instrument | In-flight aid for detecting power lines |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125751A (en) * | 1964-03-17 | R- winters | ||
| US3168729A (en) * | 1962-11-30 | 1965-02-02 | Crane Products Mfg Company Inc | Proximity alarm |
| US4532501A (en) * | 1982-02-02 | 1985-07-30 | E. I. Du Pont De Nemours And Company | Capacitively coupled machine tool safety system |
| US4649375A (en) * | 1985-10-31 | 1987-03-10 | Fmc Corporation | Apparatus for detecting power lines |
-
1987
- 1987-12-22 FR FR8717917A patent/FR2624982B1/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2624982A1 (fr) | 1989-06-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |