BE453092A - - Google Patents
Info
- Publication number
- BE453092A BE453092A BE453092DA BE453092A BE 453092 A BE453092 A BE 453092A BE 453092D A BE453092D A BE 453092DA BE 453092 A BE453092 A BE 453092A
- Authority
- BE
- Belgium
- Prior art keywords
- sound
- medium
- fact
- transmission
- equal
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 235000019589 hardness Nutrition 0.000 description 10
- 239000007787 solid Substances 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000010358 mechanical oscillation Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229940097789 heavy mineral oil Drugs 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE453092A true BE453092A (Direct) |
Family
ID=107556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE453092D BE453092A (Direct) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE453092A (Direct) |
-
0
- BE BE453092D patent/BE453092A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1222653B1 (fr) | Transducteur acoustique sous-marin a large bande | |
| FR2522216A1 (fr) | Dispositif moteur utilisant une oscillation ultrasonore | |
| EP3596825B1 (fr) | Resonateur saw a couches d'attenuation d'ondes parasites | |
| FR2581282A1 (fr) | Transducteur electromagnetique cylindrique a vibrations transversales | |
| EP0162515B1 (fr) | Dispositif de transduction ultrasonore à réseau d'éléments transducteurs piézoélectrique | |
| EP1500191B1 (fr) | Dispositif a ondes acoustiques d' interface en tantalate de li thium | |
| FR2652962A1 (fr) | Filtre mecanique compose pour vibrations longitudinales et son procede de fabrication. | |
| FR2784752A1 (fr) | Accelerometre miniature monolithique | |
| BE453092A (Direct) | ||
| FR2797552A1 (fr) | Transducteur electro-acoustique | |
| CA2170090A1 (fr) | Procede et dispositif pour diminuer la frequence de resonance des cavites des transducteurs immergeables | |
| FR2661992A1 (fr) | Deflecteur acousto-optique. | |
| FR2688972A1 (fr) | Transducteurs electro-acoustiques comportant une coque emettrice flexible et etanche. | |
| EP0022690A1 (fr) | Cellules de filtre électromécanique et filtre passe-bande les incorporant | |
| FR2782568A1 (fr) | Filtre acoustique a deux canaux differents a compensation de rejection | |
| EP2700247B1 (fr) | Dispositif d'emission d'une onde acoustique | |
| FR2492142A1 (fr) | Antenne acoustique a lentille geodesique | |
| EP0451089B1 (fr) | Résonateur piézoélectrique à haute fréquence | |
| EP3903417B1 (fr) | Dispositif à onde acoustique de surface amélioré | |
| FR2544577A1 (fr) | Sonde ultrasonore a reseau de traducteurs et procede de fabrication d'une telle sonde | |
| EP0519803A1 (fr) | Magnétrons strapés à stabilisation de fréquence | |
| EP1023950A1 (fr) | Hydrophone directif à large bande, notamment pour antenne acoustique linéaire remorquée | |
| FR2574609A1 (fr) | Elements piezoelectriques vibrants et transducteurs piezoelectriques electroacoustiques utilisant de tels elements | |
| FR2713430A1 (fr) | Procédé d'émission d'ondes acoustiques très basses fréquences à forte puissance, et transducteurs correspondants. | |
| FR2679396A1 (fr) | Composant de multiplexage ou de demultiplexage temporel a ondes acoustiques. |