FR2272564A2 - - Google Patents
Info
- Publication number
- FR2272564A2 FR2272564A2 FR7513473A FR7513473A FR2272564A2 FR 2272564 A2 FR2272564 A2 FR 2272564A2 FR 7513473 A FR7513473 A FR 7513473A FR 7513473 A FR7513473 A FR 7513473A FR 2272564 A2 FR2272564 A2 FR 2272564A2
- Authority
- FR
- France
- 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
Classifications
-
- 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
- G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/471,280 US3982142A (en) | 1973-11-05 | 1974-05-20 | Piezoelectric transducer assembly and method for generating a cone shaped radiation pattern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2272564A2 true FR2272564A2 (pt) | 1975-12-19 |
| FR2272564B2 FR2272564B2 (pt) | 1978-07-28 |
Family
ID=23870983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7513473A Expired FR2272564B2 (pt) | 1974-05-20 | 1975-04-29 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS50154089A (pt) |
| CA (1) | CA1027669A (pt) |
| DE (1) | DE2517403A1 (pt) |
| FR (1) | FR2272564B2 (pt) |
| GB (1) | GB1512242A (pt) |
| IT (1) | IT1046389B (pt) |
| NL (1) | NL7505123A (pt) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2394221A1 (fr) * | 1977-06-10 | 1979-01-05 | Thomson Csf | Dispositif transducteur electro-acoustique reversible a caracteristique de directivite constante dans une large bande de frequences |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52127353A (en) * | 1976-04-19 | 1977-10-25 | Hitachi Ltd | Hydrophone with baffle |
| US4332016A (en) | 1979-01-26 | 1982-05-25 | A/S Tomra Systems | Method, apparatus and transducer for measurement of dimensions |
| DK147718C (da) * | 1982-07-21 | 1985-05-13 | Nils Jensen | Ultralydapparat til niveaumaaling i tanke eller lignende forraadsrum |
-
1975
- 1975-03-24 CA CA222,942A patent/CA1027669A/en not_active Expired
- 1975-04-09 GB GB1465675A patent/GB1512242A/en not_active Expired
- 1975-04-19 DE DE19752517403 patent/DE2517403A1/de not_active Withdrawn
- 1975-04-29 IT IT2284075A patent/IT1046389B/it active
- 1975-04-29 NL NL7505123A patent/NL7505123A/xx not_active Application Discontinuation
- 1975-04-29 FR FR7513473A patent/FR2272564B2/fr not_active Expired
- 1975-04-30 JP JP5241875A patent/JPS50154089A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2394221A1 (fr) * | 1977-06-10 | 1979-01-05 | Thomson Csf | Dispositif transducteur electro-acoustique reversible a caracteristique de directivite constante dans une large bande de frequences |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2517403A1 (de) | 1975-12-04 |
| NL7505123A (nl) | 1975-11-24 |
| IT1046389B (it) | 1980-06-30 |
| JPS50154089A (pt) | 1975-12-11 |
| GB1512242A (en) | 1978-05-24 |
| FR2272564B2 (pt) | 1978-07-28 |
| CA1027669A (en) | 1978-03-07 |