FR2476359A1 - Dispositif a ultra-sons, notamment pour detecter la presence d'objets - Google Patents
Dispositif a ultra-sons, notamment pour detecter la presence d'objets Download PDFInfo
- Publication number
- FR2476359A1 FR2476359A1 FR8003519A FR8003519A FR2476359A1 FR 2476359 A1 FR2476359 A1 FR 2476359A1 FR 8003519 A FR8003519 A FR 8003519A FR 8003519 A FR8003519 A FR 8003519A FR 2476359 A1 FR2476359 A1 FR 2476359A1
- Authority
- FR
- France
- Prior art keywords
- receiver
- transmitter
- oscillation
- natural frequency
- amplifier
- 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
- 230000010355 oscillation Effects 0.000 claims abstract description 7
- 238000002604 ultrasonography Methods 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 10
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 210000001015 abdomen Anatomy 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 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
- G01V1/001—Acoustic presence detection
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8003519A FR2476359A1 (fr) | 1980-02-18 | 1980-02-18 | Dispositif a ultra-sons, notamment pour detecter la presence d'objets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8003519A FR2476359A1 (fr) | 1980-02-18 | 1980-02-18 | Dispositif a ultra-sons, notamment pour detecter la presence d'objets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2476359A1 true FR2476359A1 (fr) | 1981-08-21 |
| FR2476359B1 FR2476359B1 (enExample) | 1984-09-07 |
Family
ID=9238682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8003519A Granted FR2476359A1 (fr) | 1980-02-18 | 1980-02-18 | Dispositif a ultra-sons, notamment pour detecter la presence d'objets |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2476359A1 (enExample) |
-
1980
- 1980-02-18 FR FR8003519A patent/FR2476359A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2476359B1 (enExample) | 1984-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |