FR2476360A1 - - Google Patents
Download PDFInfo
- Publication number
- FR2476360A1 FR2476360A1 FR8024851A FR8024851A FR2476360A1 FR 2476360 A1 FR2476360 A1 FR 2476360A1 FR 8024851 A FR8024851 A FR 8024851A FR 8024851 A FR8024851 A FR 8024851A FR 2476360 A1 FR2476360 A1 FR 2476360A1
- Authority
- FR
- France
- Prior art keywords
- electrodes
- acoustic
- lens
- focal length
- common terminal
- 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- Withdrawn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
- 238000002604 ultrasonography Methods 0.000 claims abstract description 10
- 230000010363 phase shift Effects 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 16
- 238000002592 echocardiography Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 238000002955 isolation Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000001902 propagating effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000012285 ultrasound imaging Methods 0.000 description 2
- 241000238876 Acari Species 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
-
- 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
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/346—Circuits therefor using phase variation
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8024751A FR2494899A1 (fr) | 1980-11-18 | 1980-11-21 | Convertisseur magnetomecanique |
| NL8200209A NL8200209A (nl) | 1980-11-18 | 1982-01-21 | Magnetomechanische omzetter. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5168777 | 1977-12-12 | ||
| US96380678A | 1978-11-30 | 1978-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2476360A1 true FR2476360A1 (enrdf_load_stackoverflow) | 1981-08-21 |
Family
ID=26266922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8024851A Withdrawn FR2476360A1 (enrdf_load_stackoverflow) | 1977-12-12 | 1980-11-18 |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0007310A4 (enrdf_load_stackoverflow) |
| JP (1) | JPS55500006A (enrdf_load_stackoverflow) |
| FR (1) | FR2476360A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2036317B (enrdf_load_stackoverflow) |
| WO (1) | WO1979000373A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8612760D0 (en) * | 1986-05-27 | 1986-07-02 | Unilever Plc | Ultrasonic field generation |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936791A (en) * | 1973-09-13 | 1976-02-03 | The Commonwealth Of Australia | Linear array ultrasonic transducer |
| US4016751A (en) * | 1973-09-13 | 1977-04-12 | The Commonwealth Of Australia Care Of The Department Of Health | Ultrasonic beam forming technique |
| JPS5143879A (enrdf_load_stackoverflow) * | 1974-09-30 | 1976-04-14 | Tokyo Shibaura Electric Co | |
| CA1201197A (en) * | 1975-09-15 | 1986-02-25 | Commonwealth Of Australia (The) | Variable focus transducer |
| US4080838A (en) * | 1975-11-12 | 1978-03-28 | Hitachi Medical Corporation | Method and apparatus for controlling ultrasonic waves |
| US4131022A (en) * | 1976-03-04 | 1978-12-26 | Rca Corporation | Pulse-echo ultrasonic-imaging display system |
| US4084582A (en) * | 1976-03-11 | 1978-04-18 | New York Institute Of Technology | Ultrasonic imaging system |
| AT354778B (de) * | 1976-07-09 | 1980-01-25 | Kretztechnik Gmbh | Fokussierter schallkopf mit schwinger und schallinse fuer untersuchungen mit ultraschall nach dem impuls-echoverfahren |
| US4058003A (en) * | 1976-07-21 | 1977-11-15 | The Board Of Trustees Of The Leland Stanford Junior University | Ultrasonic electronic lens with reduced delay range |
| US4227417A (en) * | 1977-06-13 | 1980-10-14 | New York Institute Of Technology | Dynamic focusing apparatus and method |
-
1978
- 1978-12-05 JP JP50024078A patent/JPS55500006A/ja active Pending
- 1978-12-05 GB GB7927203A patent/GB2036317B/en not_active Expired
- 1978-12-05 WO PCT/US1978/000186 patent/WO1979000373A1/en unknown
-
1979
- 1979-07-03 EP EP19790900067 patent/EP0007310A4/en not_active Withdrawn
-
1980
- 1980-11-18 FR FR8024851A patent/FR2476360A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2036317A (en) | 1980-06-25 |
| JPS55500006A (enrdf_load_stackoverflow) | 1980-01-10 |
| GB2036317B (en) | 1982-07-21 |
| WO1979000373A1 (en) | 1979-06-28 |
| EP0007310A1 (en) | 1980-01-23 |
| EP0007310A4 (en) | 1980-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0142178B1 (fr) | Transducteur ultrasonore | |
| EP0769988B1 (fr) | Transducteur acoustique multifrequences a bandes larges | |
| CA2121477C (fr) | Filtre a ondes de surface et a trajet acoustique replie | |
| FR2763166A1 (fr) | Reseau de transducteurs a ultrasons et systeme d'imagerie utilisant un tel reseau | |
| FR2532807A1 (fr) | Detecteur d'ultrasons | |
| EP1053593B1 (fr) | Filtre a resonateurs a ondes acoustiques de surface | |
| EP0176155A1 (fr) | Appareil d'examen de milieux par échographie ultrasonore avec focalisation angulaire | |
| EP0944035B1 (fr) | Procédé et dispositif de focalisation d'ondes acoustiques | |
| EP0513085B2 (fr) | Filtre a ondes acoustiques de surface | |
| CA2384275A1 (fr) | Dispositif a ondes acoustiques comprenant des domaines de polarisation alternee | |
| EP0733408A1 (fr) | Capteur à ultrasons et procédés de détection utilisant un tel capteur | |
| EP0660981B1 (fr) | Transducteur d'ondes unidirectionnel | |
| EP0106418B1 (fr) | Appareil d'exploration de milieux par échographie ultrasonore | |
| WO1993006641A1 (fr) | Laser de puissance a deflexion | |
| FR2466164A1 (fr) | Transducteur ultrasonore a sensibilite variable et dispositif d'emission-reception ultrasonore equipe de ce transducteur | |
| FR2476360A1 (enrdf_load_stackoverflow) | ||
| FR2661992A1 (fr) | Deflecteur acousto-optique. | |
| FR2782568A1 (fr) | Filtre acoustique a deux canaux differents a compensation de rejection | |
| EP0424240B1 (fr) | Transducteur d'ondes de surface unidirectionnel | |
| FR3007926A1 (fr) | Transducteur a ultrasons | |
| FR2596593A1 (fr) | Procede de suppression des echos parasites dans les lignes a retard electroacoustiques a ondes de volume, et ligne a retard mettant en oeuvre ce procede | |
| EP0040566B1 (fr) | Dispositif d'échographie à focalisation dynamique et à balayage sectoriel | |
| FR2692999A1 (fr) | Sonde pour échographie et son application à l'échographie. | |
| EP0646296B1 (fr) | Transducteur a ondes de surface a reflexion acoustique distribuee et filtre comportant un tel transducteur | |
| WO1982000061A1 (en) | Receiver for a multi-element ultrasonic probe echograph and echograph thus equiped |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |