CA2396347A1 - Emetteur sonique a couche piezo-electrique - Google Patents

Emetteur sonique a couche piezo-electrique Download PDF

Info

Publication number: CA2396347A1
Authority: CA; Canada
Prior art keywords: piezoelectric film; speaker device; emitter; apertures; wave
Prior art date: 2000-01-04
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.): Abandoned

Application number

CA002396347A

Other languages

English (en)

Inventor

Joseph O. Norris

James J. Croft, Iii

Alan Robert Selfridge

Pierre Khuri-Yakub

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Genasys Inc

Original Assignee

Individual

Priority date (The priority date 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 date listed.)

2000-01-04

Filing date

2000-01-04

Publication date

2001-07-12

2000-01-04 Application filed by Individual filed Critical Individual

2001-07-12 Publication of CA2396347A1 publication Critical patent/CA2396347A1/fr

Status Abandoned legal-status Critical Current

Links

239000010408 film Substances 0.000 claims abstract description 250
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Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0688—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction with foil-type piezoelectric elements, e.g. PVDF
- 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
- G10K15/00—Acoustics not otherwise provided for
- G10K15/02—Synthesis of acoustic waves
- 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
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- 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
- H04R17/10—Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2217/00—Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
- H04R2217/03—Parametric transducers where sound is generated or captured by the acoustic demodulation of amplitude modulated ultrasonic waves

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Audiology, Speech & Language Pathology (AREA)
General Health & Medical Sciences (AREA)
Multimedia (AREA)
Mechanical Engineering (AREA)
Transducers For Ultrasonic Waves (AREA)
Piezo-Electric Transducers For Audible Bands (AREA)
Circuit For Audible Band Transducer (AREA)

CA002396347A 2000-01-04 2000-01-04 Emetteur sonique a couche piezo-electrique Abandoned CA2396347A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US2000/000103 WO2001050810A1 (fr)	2000-01-04	2000-01-04	Emetteur sonique a couche piezo-electrique

Publications (1)

Publication Number	Publication Date
CA2396347A1 true CA2396347A1 (fr)	2001-07-12

Family

ID=21740943

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002396347A Abandoned CA2396347A1 (fr)	2000-01-04	2000-01-04	Emetteur sonique a couche piezo-electrique

Country Status (8)

Country	Link
EP (1)	EP1247421A4 (fr)
JP (1)	JP2003520002A (fr)
KR (1)	KR20020079767A (fr)
CN (1)	CN1190107C (fr)
AU (1)	AU2719000A (fr)
CA (1)	CA2396347A1 (fr)
HK (1)	HK1050102A1 (fr)
WO (1)	WO2001050810A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2459921C (fr) *	2001-09-06	2009-12-22	Pegasus Technologies Ltd.	Recepteurs et emetteurs a ultrasons cylindriques constitues d'une couche mince piezo-electrique
US8116508B2 (en) *	2008-09-26	2012-02-14	Nokia Corporation	Dual-mode loudspeaker
JP4947115B2 (ja) *	2009-09-30	2012-06-06	株式会社村田製作所	超音波トランスデューサ
US20110264012A1 (en) *	2009-10-23	2011-10-27	Frans Lautzenhiser	Compliant couplant with liquid reservoir for transducer
JP6264041B2 (ja) *	2011-08-16	2018-01-24	日本電気株式会社	電子機器
ES2907457T3 (es) *	2011-09-01	2022-04-25	Microtech Medical Technologies Ltd	Dispositivo de sensor implantable para medir una presión de fluido
CN104181231B (zh) *	2014-07-07	2017-01-11	西安交通大学	一种测定薄膜材料屈服行为的装置及其测定方法
CN104822118B (zh) *	2015-05-06	2018-11-30	歌尔股份有限公司	一种mems麦克风的封装结构
CN105537091B (zh) *	2015-11-23	2018-06-29	西北工业大学	基于频率差拍式和声学参量阵技术的次声波合成方法及装置
WO2019186305A1 (fr) *	2018-03-24	2019-10-03	RAMCHANDRAN, Shankar Trichur	Ensemble transducteur
WO2019186321A1 (fr) *	2018-03-24	2019-10-03	RAMCHANDRAN, Shankar Trichur	Unité de mise en forme et de diffusion d'ondes pour un transducteur ultrasonore
FR3087608B1 (fr) *	2018-10-17	2021-11-19	Akoustic Arts	Enceinte acoustique et procede de modulation pour une enceinte acoustique
US11623248B2 (en) *	2019-01-18	2023-04-11	University Of Southern California	Focused ultrasound transducer with electrically controllable focal length
CN110234056B (zh) *	2019-06-21	2021-01-12	京东方科技集团股份有限公司	换能器及其制备方法、换能装置
KR102267074B1 (ko) *	2019-11-11	2021-06-21	재단법인 파동에너지 극한제어 연구단	초음파 트랜스듀서의 음향 초투과형 커버 유닛
CN111044618B (zh) *	2019-12-05	2022-08-16	西安理工大学	一种声发射信号检测的压电传感器及压电薄膜的制备方法
CN111669690A (zh) *	2020-07-10	2020-09-15	瑞声科技（南京）有限公司	一种压电式麦克风及其制备工艺
CN114822482B (zh) *	2022-03-11	2023-05-23	南京师范大学	一种耦合声涡旋发射器及其应用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4056742A (en) *	1976-04-30	1977-11-01	Tibbetts Industries, Inc.	Transducer having piezoelectric film arranged with alternating curvatures
FR2409654B1 (fr) *	1977-11-17	1985-10-04	Thomson Csf	Dispositif transducteur piezoelectrique et son procede de fabrication
US4725994A (en) *	1984-06-14	1988-02-16	Kabushiki Kaisha Toshiba	Ultrasonic transducer with a multiple-folded piezoelectric polymer film
US4825116A (en) *	1987-05-07	1989-04-25	Yokogawa Electric Corporation	Transmitter-receiver of ultrasonic distance measuring device
DE3731196A1 (de) *	1987-09-17	1989-03-30	Messerschmitt Boelkow Blohm	Frequenzselektiver schallwandler

2000
- 2000-01-04 JP JP2001551061A patent/JP2003520002A/ja active Pending
- 2000-01-04 CA CA002396347A patent/CA2396347A1/fr not_active Abandoned
- 2000-01-04 WO PCT/US2000/000103 patent/WO2001050810A1/fr not_active Application Discontinuation
- 2000-01-04 AU AU27190/00A patent/AU2719000A/en not_active Abandoned
- 2000-01-04 CN CNB008188386A patent/CN1190107C/zh not_active Expired - Fee Related
- 2000-01-04 EP EP00905530A patent/EP1247421A4/fr not_active Withdrawn
- 2000-01-04 KR KR1020027008678A patent/KR20020079767A/ko not_active Application Discontinuation
2003
- 2003-03-28 HK HK03102258.0A patent/HK1050102A1/zh unknown

Also Published As

Publication number	Publication date
WO2001050810A1 (fr)	2001-07-12
CN1433661A (zh)	2003-07-30
EP1247421A4 (fr)	2008-05-21
HK1050102A1 (zh)	2003-06-06
KR20020079767A (ko)	2002-10-19
CN1190107C (zh)	2005-02-16
EP1247421A1 (fr)	2002-10-09
AU2719000A (en)	2001-07-16
JP2003520002A (ja)	2003-06-24

Legal Events

Date	Code	Title	Description
2004-12-29	EEER	Examination request
2008-01-04	FZDE	Dead

Publication	Publication Date	Title
US6011855A (en)	2000-01-04	Piezoelectric film sonic emitter
US20040052387A1 (en)	2004-03-18	Piezoelectric film emitter configuration
CA2396347A1 (fr)	2001-07-12	Emetteur sonique a couche piezo-electrique
US4064375A (en)	1977-12-20	Vacuum stressed polymer film piezoelectric transducer
US20050244016A1 (en)	2005-11-03	Parametric loudspeaker with electro-acoustical diaphragm transducer
JP4802998B2 (ja)	2011-10-26	静電型超音波トランスデューサの駆動制御方法、静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
US7376236B1 (en)	2008-05-20	Piezoelectric film sonic emitter
US6925187B2 (en)	2005-08-02	Horn array emitter
US8199931B1 (en)	2012-06-12	Parametric loudspeaker with improved phase characteristics
JP4844411B2 (ja)	2011-12-28	静電型超音波トランスデューサ、静電型超音波トランスデューサの製造方法、超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JP5103873B2 (ja)	2012-12-19	静電型超音波トランスデューサの駆動制御方法、静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
US6044160A (en)	2000-03-28	Resonant tuned, ultrasonic electrostatic emitter
US20060072770A1 (en)	2006-04-06	Electrostatic ultrasonic transducer and ultrasonic speaker
WO2000018182A1 (fr)	2000-03-30	Haut-parleur parametrique dote d'un transducteur a membrane electroacoustique
JP2008042869A (ja)	2008-02-21	静電型超音波トランスデューサ、超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JP4285537B2 (ja)	2009-06-24	静電型超音波トランスデューサ
US6151398A (en)	2000-11-21	Magnetic film ultrasonic emitter
US20060233404A1 (en)	2006-10-19	Horn array emitter
JP2007503742A (ja)	2007-02-22	エミッタフィルムを有するパラメトリック・トランスデューサ
US4048454A (en)	1977-09-13	Sonic transducer employing rigid radiating member
US6175636B1 (en)	2001-01-16	Electrostatic speaker with moveable diaphragm edges
US8085957B2 (en)	2011-12-27	Method for converting electric signals into acoustic oscillations and an electric gas-kinetic transducer
JP2008118247A (ja)	2008-05-22	静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置
JP2005039437A (ja)	2005-02-10	超音波スピーカ及び超音波スピーカの信号音再生方法
RU2014758C1 (ru)	1994-06-15	Электроакустический преобразователь