GB2181621B - Electro-mechanical transducer - Google Patents
Electro-mechanical transducerInfo
- Publication number
- GB2181621B GB2181621B GB8622675A GB8622675A GB2181621B GB 2181621 B GB2181621 B GB 2181621B GB 8622675 A GB8622675 A GB 8622675A GB 8622675 A GB8622675 A GB 8622675A GB 2181621 B GB2181621 B GB 2181621B
- Authority
- GB
- United Kingdom
- Prior art keywords
- electro
- mechanical transducer
- transducer
- mechanical
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrophonic Musical Instruments (AREA)
- Transducers For Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB858501475A GB8501475D0 (en) | 1985-01-21 | 1985-01-21 | Electro-mechanical transducer |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8622675D0 GB8622675D0 (en) | 1986-10-22 |
GB2181621A GB2181621A (en) | 1987-04-23 |
GB2181621B true GB2181621B (en) | 1989-07-19 |
Family
ID=10573163
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB858501475A Pending GB8501475D0 (en) | 1985-01-21 | 1985-01-21 | Electro-mechanical transducer |
GB8622675A Expired GB2181621B (en) | 1985-01-21 | 1986-01-21 | Electro-mechanical transducer |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB858501475A Pending GB8501475D0 (en) | 1985-01-21 | 1985-01-21 | Electro-mechanical transducer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0210214A1 (en) |
AU (1) | AU5354886A (en) |
GB (2) | GB8501475D0 (en) |
WO (1) | WO1986004477A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9108490D0 (en) * | 1991-04-20 | 1991-06-05 | Jones Richard W | Device for acoustic wave generation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH587595A5 (en) * | 1974-05-30 | 1977-05-13 | Plessey Handel Investment Ag | |
US4166229A (en) * | 1978-02-23 | 1979-08-28 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric polymer membrane stress gage |
DE2944506A1 (en) * | 1978-11-05 | 1980-05-08 | Ngk Spark Plug Co | PIEZOELECTRIC CONVERTER FOR ELECTRIC STRING INSTRUMENTS AND CARTRIDGES CONTAINING THEM |
JPS58156299A (en) * | 1982-03-12 | 1983-09-17 | Toshiba Corp | Multi-layer polymer transducer |
US4475014A (en) * | 1982-09-13 | 1984-10-02 | Harman-Motive Inc. | Acoustical transducer |
-
1985
- 1985-01-21 GB GB858501475A patent/GB8501475D0/en active Pending
-
1986
- 1986-01-21 EP EP19860900807 patent/EP0210214A1/en not_active Withdrawn
- 1986-01-21 GB GB8622675A patent/GB2181621B/en not_active Expired
- 1986-01-21 AU AU53548/86A patent/AU5354886A/en not_active Abandoned
- 1986-01-21 WO PCT/GB1986/000038 patent/WO1986004477A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH587595A5 (en) * | 1974-05-30 | 1977-05-13 | Plessey Handel Investment Ag | |
US4166229A (en) * | 1978-02-23 | 1979-08-28 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric polymer membrane stress gage |
DE2944506A1 (en) * | 1978-11-05 | 1980-05-08 | Ngk Spark Plug Co | PIEZOELECTRIC CONVERTER FOR ELECTRIC STRING INSTRUMENTS AND CARTRIDGES CONTAINING THEM |
JPS58156299A (en) * | 1982-03-12 | 1983-09-17 | Toshiba Corp | Multi-layer polymer transducer |
US4475014A (en) * | 1982-09-13 | 1984-10-02 | Harman-Motive Inc. | Acoustical transducer |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN, Volume 7, No. 276 (E-215) (1421), 9 December 1983 & JP,A,58 156299 (Tokyo Shibaura Denki K.K.) 17 September 1983 … * |
Also Published As
Publication number | Publication date |
---|---|
WO1986004477A1 (en) | 1986-07-31 |
EP0210214A1 (en) | 1987-02-04 |
GB8501475D0 (en) | 1985-02-20 |
GB8622675D0 (en) | 1986-10-22 |
AU5354886A (en) | 1986-08-13 |
GB2181621A (en) | 1987-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20000121 |