ZA81876B - Acoustic transducers - Google Patents
Acoustic transducersInfo
- Publication number
- ZA81876B ZA81876B ZA00810876A ZA81876A ZA81876B ZA 81876 B ZA81876 B ZA 81876B ZA 00810876 A ZA00810876 A ZA 00810876A ZA 81876 A ZA81876 A ZA 81876A ZA 81876 B ZA81876 B ZA 81876B
- Authority
- ZA
- South Africa
- Prior art keywords
- vibratable member
- coupled
- acoustic
- sound
- air
- Prior art date
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
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14201480A | 1980-04-21 | 1980-04-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA81876B true ZA81876B (en) | 1982-02-24 |
Family
ID=22498204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00810876A ZA81876B (en) | 1980-04-21 | 1981-02-10 | Acoustic transducers |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0039986B1 (fr) |
JP (1) | JPS56165497A (fr) |
AT (1) | ATE2981T1 (fr) |
AU (1) | AU532596B2 (fr) |
CA (1) | CA1136257A (fr) |
DE (1) | DE3160140D1 (fr) |
MX (1) | MX149462A (fr) |
ZA (1) | ZA81876B (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3602351C1 (de) * | 1986-01-27 | 1986-12-11 | Endress + Hauser GmbH + Co., 79689 Maulburg | Schallwandlersystem |
DE19601656B4 (de) * | 1996-01-18 | 2009-07-16 | Valeo Schalter Und Sensoren Gmbh | Bedämpfter Ultraschallwandler |
DE19620133C2 (de) * | 1996-05-18 | 2001-09-13 | Endress Hauser Gmbh Co | Schall- oder Ultraschallsensor |
DE19758243A1 (de) * | 1997-12-30 | 1999-07-15 | Endress Hauser Gmbh Co | Schallwandlersystem |
US8186229B2 (en) * | 2010-01-06 | 2012-05-29 | Daniel Measurement And Control, Inc. | Ultrasonic flow meter having a port cover assembly |
JP2015508960A (ja) | 2012-01-30 | 2015-03-23 | ピエゾテック・エルエルシー | パルスエコー音響変換装置 |
DE102013211619A1 (de) * | 2013-06-20 | 2014-12-24 | Robert Bosch Gmbh | Umfeldsensiereinrichtung mit Ultraschallwandler, und Kraftfahrzeug mit einer derartigen Umfeldsensiereinrichtung |
DE102013211606A1 (de) * | 2013-06-20 | 2014-12-24 | Robert Bosch Gmbh | Umfeldsensiereinrichtung mit Ultraschallwandler, und Kraftfahrzeug mit einer derartigen Umfeldsensiereinrichtung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3218488A (en) * | 1961-08-01 | 1965-11-16 | Branson Instr | Transducer |
JPS437677Y1 (fr) * | 1965-01-02 | 1968-04-05 | ||
FR1546591A (fr) * | 1966-08-10 | 1968-11-22 | Univ Ohio State | Transducteurs électro-mécaniques |
JPS5929816B2 (ja) * | 1975-08-20 | 1984-07-23 | 松下電器産業株式会社 | 超音波探触子 |
US4078160A (en) * | 1977-07-05 | 1978-03-07 | Motorola, Inc. | Piezoelectric bimorph or monomorph bender structure |
-
1980
- 1980-12-19 CA CA000367186A patent/CA1136257A/fr not_active Expired
-
1981
- 1981-01-29 DE DE8181300378T patent/DE3160140D1/de not_active Expired
- 1981-01-29 AT AT81300378T patent/ATE2981T1/de not_active IP Right Cessation
- 1981-01-29 EP EP81300378A patent/EP0039986B1/fr not_active Expired
- 1981-02-10 ZA ZA00810876A patent/ZA81876B/xx unknown
- 1981-03-09 MX MX186289A patent/MX149462A/es unknown
- 1981-03-11 AU AU68238/81A patent/AU532596B2/en not_active Expired
- 1981-03-14 JP JP3718881A patent/JPS56165497A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1136257A (fr) | 1982-11-23 |
DE3160140D1 (en) | 1983-05-11 |
MX149462A (es) | 1983-11-08 |
JPS56165497A (en) | 1981-12-19 |
EP0039986B1 (fr) | 1983-04-06 |
ATE2981T1 (de) | 1983-04-15 |
JPH0134000B2 (fr) | 1989-07-17 |
AU532596B2 (en) | 1983-10-06 |
EP0039986A1 (fr) | 1981-11-18 |
AU6823881A (en) | 1981-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0097692A1 (fr) | Haut-parleur piezo-electrique couple a des structures de resonance. | |
ES8104888A1 (es) | Perfeccionamientos en transductores electroacusticos | |
JPS57161672A (en) | Measuring method utilizing ultrasonic wave | |
ATE141416T1 (de) | Verbesserungen in akustischen entfernungsmessern | |
YU17201A (sh) | Akustički uređaj oblika ploče koji koristi mod savojnih talasa | |
KR930015319A (ko) | 표면 음향파 필터 | |
SE9101427L (sv) | Foerfarande och elektroakustisk omvandlare foer utsaendning av akustiska vaagor med laag frekvens i en vaetska | |
DE3160140D1 (en) | An acoustic transducer system | |
HK50082A (en) | Electro-acoustic tranducer | |
US2014411A (en) | Apparatus for electromagnetostrictive transmission and reception | |
GB2035009A (en) | Transducer horns | |
DE59010738D1 (de) | Frequenzselektiver Ultraschall-Schichtwandler | |
EP0172268A3 (fr) | Capteurs magnétomécaniques utilisant des changements de fréquence résonnante | |
CA2257584A1 (fr) | Systeme de transducteur acoustique | |
BR9004306A (pt) | Alto falante piezo-eletrico para altas frequencias aperfeicoado | |
ZA935767B (en) | Acoustic transducer. | |
IT9048608A0 (it) | Dispositivo per la trasmissione e la ricezione di sgnali acustici ad alta risoluzione, particolarmente er applicazioni sottomarine, con trasduttore paraboloidale di ricezione circondato da trasduttori parabolidali di trasmissione a eccitazione differenziata. | |
EP0123455A3 (fr) | Transducteur à réception acoustique | |
US5024092A (en) | Method and apparatus for selective transmission and reflection of sound through a solid | |
JPS5535558A (en) | Sounding material | |
EP0387679A3 (fr) | Filtre passe-bande à ondes acoustiques de surface | |
GB1329953A (en) | Electroacoustic transducers | |
SU868572A1 (ru) | Ультразвуковой резонансный преобразователь | |
JPS57166717A (en) | Piezoelectric bimorph oscillator | |
EP0225113A3 (fr) | Dispositif transducteur magnétostrictif |