AU2719000A - Piezoelectric film sonic emitter - Google Patents

Piezoelectric film sonic emitter

Info

Publication number
AU2719000A
AU2719000A AU27190/00A AU2719000A AU2719000A AU 2719000 A AU2719000 A AU 2719000A AU 27190/00 A AU27190/00 A AU 27190/00A AU 2719000 A AU2719000 A AU 2719000A AU 2719000 A AU2719000 A AU 2719000A
Authority
AU
Australia
Prior art keywords
piezoelectric film
sonic emitter
film sonic
emitter
piezoelectric
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.)
Abandoned
Application number
AU27190/00A
Inventor
James J. Croft Iii
Pierre Khuri-Yakub
Joseph O. Norris
Alan Robert Selfridge
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
American Technology 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 American Technology Corp filed Critical American Technology Corp
Publication of AU2719000A publication Critical patent/AU2719000A/en
Abandoned legal-status Critical Current

Links

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)
AU27190/00A 2000-01-04 2000-01-04 Piezoelectric film sonic emitter Abandoned AU2719000A (en)

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 (1)

Publication Number Publication Date
AU2719000A true AU2719000A (en) 2001-07-16

Family

ID=21740943

Family Applications (1)

Application Number Title Priority Date Filing Date
AU27190/00A Abandoned AU2719000A (en) 2000-01-04 2000-01-04 Piezoelectric film sonic emitter

Country Status (8)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4515092B2 (en) * 2001-09-06 2010-07-28 ペガサス テクノロジーズ リミテッド Cylindrical ultrasonic receiver and transceiver formed of piezoelectric film
US8116508B2 (en) * 2008-09-26 2012-02-14 Nokia Corporation Dual-mode loudspeaker
JP4947115B2 (en) * 2009-09-30 2012-06-06 株式会社村田製作所 Ultrasonic transducer
US20110264012A1 (en) * 2009-10-23 2011-10-27 Frans Lautzenhiser Compliant couplant with liquid reservoir for transducer
EP2747450A4 (en) * 2011-08-16 2015-12-30 Nec Corp Electronic device
WO2013033506A1 (en) * 2011-09-01 2013-03-07 Microtech Medical Technologies Ltd. Method of detecting portal and/or hepatic pressure and a portal hypertension monitoring system
CN104181231B (en) * 2014-07-07 2017-01-11 西安交通大学 Device and method for measuring yield behavior of thin film material
CN104822118B (en) * 2015-05-06 2018-11-30 歌尔股份有限公司 A kind of encapsulating structure of MEMS microphone
CN105537091B (en) * 2015-11-23 2018-06-29 西北工业大学 Infrasonic sound wave synthesis method and device based on frequency beat formula and acoustic parametric arrays technology
WO2019186305A1 (en) * 2018-03-24 2019-10-03 RAMCHANDRAN, Shankar Trichur Transducer assembly
WO2019186321A1 (en) * 2018-03-24 2019-10-03 RAMCHANDRAN, Shankar Trichur Wave shaping and scattering unit for an ultrasonic transducer
FR3087608B1 (en) * 2018-10-17 2021-11-19 Akoustic Arts ACOUSTIC SPEAKER AND MODULATION PROCESS FOR AN ACOUSTIC SPEAKER
US11623248B2 (en) * 2019-01-18 2023-04-11 University Of Southern California Focused ultrasound transducer with electrically controllable focal length
CN110234056B (en) * 2019-06-21 2021-01-12 京东方科技集团股份有限公司 Transducer, preparation method thereof and transducer device
KR102267074B1 (en) * 2019-11-11 2021-06-21 재단법인 파동에너지 극한제어 연구단 Cover unit of ultrasonic transducer in acoustic extraordinary transmission type
CN111044618B (en) * 2019-12-05 2022-08-16 西安理工大学 Piezoelectric sensor for detecting acoustic emission signals and preparation method of piezoelectric film
CN111669690A (en) * 2020-07-10 2020-09-15 瑞声科技（南京）有限公司 Piezoelectric microphone and preparation process thereof
CN114822482B (en) * 2022-03-11 2023-05-23 南京师范大学 Coupled sound vortex emitter and application thereof

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 (en) * 1977-11-17 1985-10-04 Thomson Csf PIEZOELECTRIC TRANSDUCER DEVICE AND MANUFACTURING METHOD THEREOF
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 (en) * 1987-09-17 1989-03-30 Messerschmitt Boelkow Blohm FREQUENCY SELECTIVE SOUND CONVERTER

Also Published As

Publication number Publication date
CN1190107C (en) 2005-02-16
JP2003520002A (en) 2003-06-24
CN1433661A (en) 2003-07-30
CA2396347A1 (en) 2001-07-12
HK1050102A1 (en) 2003-06-06
EP1247421A1 (en) 2002-10-09
KR20020079767A (en) 2002-10-19
EP1247421A4 (en) 2008-05-21
WO2001050810A1 (en) 2001-07-12

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase