CN1190107C - 压电薄膜声发射器 - Google Patents

压电薄膜声发射器 Download PDF

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Publication number
CN1190107C
CN1190107C CNB008188386A CN00818838A CN1190107C CN 1190107 C CN1190107 C CN 1190107C CN B008188386 A CNB008188386 A CN B008188386A CN 00818838 A CN00818838 A CN 00818838A CN 1190107 C CN1190107 C CN 1190107C
Authority
CN
China
Prior art keywords
piezoelectric membrane
loud speaker
expelling plate
film
wave
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 - Fee Related
Application number
CNB008188386A
Other languages
English (en)
Chinese (zh)
Other versions
CN1433661A (zh
Inventor
约瑟夫·O·诺里斯
詹姆斯·J·克罗夫特三世
艾伦·R·塞尔夫里奇
皮埃尔·基里－亚库柏
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.)
AT&T Teleholdings Inc
Original Assignee
Ameritech Corp
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.)
Filing date
Publication date
Application filed by Ameritech Corp filed Critical Ameritech Corp
Publication of CN1433661A publication Critical patent/CN1433661A/zh
Application granted granted Critical
Publication of CN1190107C publication Critical patent/CN1190107C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Circuit For Audible Band Transducer (AREA)
CNB008188386A 2000-01-04 2000-01-04 压电薄膜声发射器 Expired - Fee Related CN1190107C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/000103 WO2001050810A1 (en) 2000-01-04 2000-01-04 Piezoelectric film sonic emitter

Publications (2)

Publication Number Publication Date
CN1433661A CN1433661A (zh) 2003-07-30
CN1190107C true CN1190107C (zh) 2005-02-16

Family

ID=21740943

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008188386A Expired - Fee Related CN1190107C (zh) 2000-01-04 2000-01-04 压电薄膜声发射器

Country Status (8)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1423051A4 (en) * 2001-09-06 2011-09-28 Pegasus Technologies Ltd CYLINDRICAL ULTRASOUND RECEIVERS AND TRANSMITTER RECEIVERS FROM A PIEZOELECTRIC FILM
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
US9116224B2 (en) 2011-08-16 2015-08-25 Nec Corporation Electronic device
CN103796579B (zh) 2011-09-01 2017-06-13 微创医学科技有限公司 检测门静脉和/或肝静脉压力的方法和门静脉高压监控系统
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
WO2019186321A1 (en) * 2018-03-24 2019-10-03 RAMCHANDRAN, Shankar Trichur Wave shaping and scattering unit for an ultrasonic transducer
WO2019186305A1 (en) * 2018-03-24 2019-10-03 RAMCHANDRAN, Shankar Trichur Transducer assembly
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

Also Published As

Publication number Publication date
EP1247421A1 (en) 2002-10-09
HK1050102A1 (zh) 2003-06-06
EP1247421A4 (en) 2008-05-21
AU2719000A (en) 2001-07-16
CA2396347A1 (en) 2001-07-12
KR20020079767A (ko) 2002-10-19
CN1433661A (zh) 2003-07-30
WO2001050810A1 (en) 2001-07-12
JP2003520002A (ja) 2003-06-24

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