FR2517833A1 - Dispositif de detection de passage d'objets et/ou de personnes - Google Patents
Dispositif de detection de passage d'objets et/ou de personnes Download PDFInfo
- Publication number
- FR2517833A1 FR2517833A1 FR8122973A FR8122973A FR2517833A1 FR 2517833 A1 FR2517833 A1 FR 2517833A1 FR 8122973 A FR8122973 A FR 8122973A FR 8122973 A FR8122973 A FR 8122973A FR 2517833 A1 FR2517833 A1 FR 2517833A1
- Authority
- FR
- France
- Prior art keywords
- slab
- piezoelectric
- piezoelectric cable
- cable
- detection device
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims description 6
- 238000013016 damping Methods 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 5
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract description 2
- 229920002223 polystyrene Polymers 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
- G01V1/208—Constructional details of seismic cables, e.g. streamers having a continuous structure
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8122973A FR2517833A1 (fr) | 1981-12-04 | 1981-12-04 | Dispositif de detection de passage d'objets et/ou de personnes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8122973A FR2517833A1 (fr) | 1981-12-04 | 1981-12-04 | Dispositif de detection de passage d'objets et/ou de personnes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2517833A1 true FR2517833A1 (fr) | 1983-06-10 |
| FR2517833B3 FR2517833B3 (enExample) | 1984-12-21 |
Family
ID=9264810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8122973A Granted FR2517833A1 (fr) | 1981-12-04 | 1981-12-04 | Dispositif de detection de passage d'objets et/ou de personnes |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2517833A1 (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937555A (en) * | 1989-04-04 | 1990-06-26 | The United States Of America As Represented By The Secretary Of Agriculture | Piezoelectric apparatus and process for detection of insect infestation in an agricultural commodity |
| US5005416A (en) * | 1989-04-04 | 1991-04-09 | The United States Of America As Represented By The Secretary Of Agriculture | Insect detection using a pitfall probe trap having vibration detection |
-
1981
- 1981-12-04 FR FR8122973A patent/FR2517833A1/fr active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4937555A (en) * | 1989-04-04 | 1990-06-26 | The United States Of America As Represented By The Secretary Of Agriculture | Piezoelectric apparatus and process for detection of insect infestation in an agricultural commodity |
| US5005416A (en) * | 1989-04-04 | 1991-04-09 | The United States Of America As Represented By The Secretary Of Agriculture | Insect detection using a pitfall probe trap having vibration detection |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2517833B3 (enExample) | 1984-12-21 |
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