ATE509708T1 - ULTRASONIC TRANSDUCER FOR GENERATING ASYMMETRIC SOUND FIELDS - Google Patents
ULTRASONIC TRANSDUCER FOR GENERATING ASYMMETRIC SOUND FIELDSInfo
- Publication number
- ATE509708T1 ATE509708T1 AT08869632T AT08869632T ATE509708T1 AT E509708 T1 ATE509708 T1 AT E509708T1 AT 08869632 T AT08869632 T AT 08869632T AT 08869632 T AT08869632 T AT 08869632T AT E509708 T1 ATE509708 T1 AT E509708T1
- Authority
- AT
- Austria
- Prior art keywords
- diaphragm
- ultrasonic transducer
- sound fields
- asymmetric sound
- generating asymmetric
- Prior art date
Links
- 230000010355 oscillation Effects 0.000 abstract 1
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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Surgical Instruments (AREA)
- Electrophonic Musical Instruments (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention relates to an ultrasonic transducer for generating asymmetric sound fields. Said ultrasonic transducer comprises a housing (1) that encompasses an elongate diaphragm (2) and a plate-shaped transducer element (3) which is arranged on one side of a main surface of the diaphragm (2), is made of an electrostrictive material, and allows the diaphragm (2) to be excited to generate oscillations in the ultrasonic range. A gap is formed between the diaphragm (2) and the transducer element (3), the diaphragm (2) being coupled to the transducer element (3) exclusively along the edge thereof. Such an ultrasonic transducer makes it possible to generate asymmetric sound fields which have an aperture ratio of 1:3 or more.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008003594 | 2008-01-09 | ||
PCT/DE2008/002140 WO2009086805A1 (en) | 2008-01-09 | 2008-12-19 | Ultrasonic transducer for generating asymmetric sound fields |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE509708T1 true ATE509708T1 (en) | 2011-06-15 |
Family
ID=40622175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT08869632T ATE509708T1 (en) | 2008-01-09 | 2008-12-19 | ULTRASONIC TRANSDUCER FOR GENERATING ASYMMETRIC SOUND FIELDS |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2229242B1 (en) |
AT (1) | ATE509708T1 (en) |
DE (1) | DE112008003772A5 (en) |
WO (1) | WO2009086805A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010053713A1 (en) * | 2010-12-07 | 2012-06-14 | Continental Automotive Gmbh | An electroacoustic transducer assembly and method of operating an electroacoustic transducer assembly |
DE102012201884A1 (en) * | 2012-02-09 | 2013-08-14 | Robert Bosch Gmbh | transducer |
GB201409547D0 (en) * | 2014-05-29 | 2014-07-16 | Gill Instr Ltd | An electroacoustic transducer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4330747C1 (en) * | 1993-09-10 | 1995-02-16 | Siemens Ag | Ultrasonic transducer and method for producing it |
US6443901B1 (en) * | 2000-06-15 | 2002-09-03 | Koninklijke Philips Electronics N.V. | Capacitive micromachined ultrasonic transducers |
JP3915448B2 (en) * | 2001-07-30 | 2007-05-16 | 日本ビクター株式会社 | Electroacoustic transducer |
DE102006050037A1 (en) * | 2006-10-24 | 2008-04-30 | Robert Bosch Gmbh | Ultrasonic transducer for motor vehicle, has damping unit for damping vibrations of wall, arranged in diaphragm pot in edge section of diaphragm and connected with edge section and inner side of wall in force-fitting manner |
-
2008
- 2008-12-19 AT AT08869632T patent/ATE509708T1/en active
- 2008-12-19 DE DE112008003772T patent/DE112008003772A5/en not_active Withdrawn
- 2008-12-19 WO PCT/DE2008/002140 patent/WO2009086805A1/en active Application Filing
- 2008-12-19 EP EP08869632A patent/EP2229242B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2229242B1 (en) | 2011-05-18 |
EP2229242A1 (en) | 2010-09-22 |
WO2009086805A1 (en) | 2009-07-16 |
DE112008003772A5 (en) | 2010-12-09 |
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