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AT349084B - Piezoelektrischer schallwandler - Google Patents

Piezoelektrischer schallwandler

Info

Publication number
AT349084B
AT349084B AT585075A AT585075A AT349084B AT 349084 B AT349084 B AT 349084B AT 585075 A AT585075 A AT 585075A AT 585075 A AT585075 A AT 585075A AT 349084 B AT349084 B AT 349084B
Authority
AT
Austria
Prior art keywords
piezoelectric sound
sound converter
converter
piezoelectric
sound
Prior art date
Application number
AT585075A
Other languages
English (en)
Other versions
ATA585075A (de
Original Assignee
Plessey Handel Investment Ag
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 Plessey Handel Investment Ag filed Critical Plessey Handel Investment Ag
Publication of ATA585075A publication Critical patent/ATA585075A/de
Application granted granted Critical
Publication of AT349084B publication Critical patent/AT349084B/de

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • 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
    • H04R17/02—Microphones
    • H04R17/025—Microphones using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
AT585075A 1974-05-30 1975-07-28 Piezoelektrischer schallwandler AT349084B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25370/74A GB1515287A (en) 1974-05-30 1974-05-30 Piezoelectric transducers

Publications (2)

Publication Number Publication Date
ATA585075A ATA585075A (de) 1978-08-15
AT349084B true AT349084B (de) 1979-03-26

Family

ID=10226583

Family Applications (1)

Application Number Title Priority Date Filing Date
AT585075A AT349084B (de) 1974-05-30 1975-07-28 Piezoelektrischer schallwandler

Country Status (6)

Country Link
US (1) US4156800A (de)
AT (1) AT349084B (de)
AU (1) AU494323B2 (de)
CH (1) CH587595A5 (de)
GB (1) GB1515287A (de)
MY (1) MY7900216A (de)

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JPS498901U (de) * 1972-04-27 1974-01-25
NL7703836A (nl) * 1977-04-07 1977-06-30 Philips Nv Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal.
AT375466B (de) * 1977-07-27 1984-08-10 List Hans Messwertaufnehmer mit einem piezoelektrischen messelement
JPS5512508A (en) * 1978-07-10 1980-01-29 Kureha Chem Ind Co Ltd Information recording sheet
EP0015886A1 (de) * 1979-03-13 1980-09-17 Toray Industries, Inc. Verbessertes elektro-akustisches Wandler-Element
US4383194A (en) * 1979-05-01 1983-05-10 Toray Industries, Inc. Electro-acoustic transducer element
FR2465387A1 (fr) * 1979-09-12 1981-03-20 Audax Transducteur piezoelectrique
JPS5675686A (en) * 1979-11-26 1981-06-22 Kureha Chem Ind Co Ltd Ultrasonic video device
FR2475804A1 (fr) * 1980-02-12 1981-08-14 Lewiner Jacques Perfectionnements aux nappes composites constitutives de transducteurs electromecaniques et aux transducteurs equipes de telles nappes
DE3009068A1 (de) * 1980-03-10 1981-09-24 Reinhard Dipl.-Ing. Lerch Piezopolymer-wandler mit fester membranunterstuetzung
US4514596A (en) * 1980-07-17 1985-04-30 Plessey Overseas Limited Telephone handsets
US4394773A (en) * 1980-07-21 1983-07-19 Siemens Corporation Fingerprint sensor
FR2498406A1 (fr) * 1981-01-16 1982-07-23 Thomson Csf Structure de transducteur electromecanique
US4413198A (en) * 1981-12-30 1983-11-01 Motorola, Inc. Piezoelectric transducer apparatus
JPS5957100U (ja) * 1982-10-08 1984-04-13 株式会社プリモ セラミツクマイクロホン
FR2536622B1 (fr) * 1982-11-19 1986-03-07 Thomson Csf Hydrophone de vitesse
FR2536423A1 (fr) * 1982-11-19 1984-05-25 Thomson Csf Procede de depot d'electrodes sur support en matiere organique et dispositifs obtenus par ce procede
SE452083C (sv) * 1983-02-25 1991-01-14 Rune Rosander Mikrofon
DE3407980A1 (de) * 1983-04-20 1984-10-25 Tadashi Tokio/Tokyo Sawafuji Kristallschallerzeuger
FR2563959B1 (fr) * 1984-05-04 1990-08-10 Lewiner Jacques Perfectionnements aux transducteurs electro-acoustiques a electret
DE3437488A1 (de) * 1984-10-12 1986-04-17 Richard Wolf Gmbh, 7134 Knittlingen Schallsender
GB8501475D0 (en) * 1985-01-21 1985-02-20 Jones T G Electro-mechanical transducer
US4633045A (en) * 1985-02-13 1986-12-30 Crown International, Inc. Differential microphone
GB2176369B (en) * 1985-05-09 1988-10-05 Plessey Co Plc Improvements in and relating to microphones
FR2603422B1 (fr) * 1986-08-27 1988-12-30 Inst Francais Du Petrole Procede pour realiser des capteurs piezo-electriques continus de sensibilite accrue et capteurs realises suivant le procede
JPH02197183A (ja) * 1988-03-29 1990-08-03 Pennwalt Corp 積層圧電構造及びその形成方法
JPH0456531A (ja) * 1990-06-26 1992-02-24 Matsushita Electric Ind Co Ltd 音声入力装置
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
US5283835A (en) * 1991-11-15 1994-02-01 Athanas Lewis S Ferroelectric composite film acoustic transducer
US5251264A (en) * 1992-03-25 1993-10-05 Motorola, Inc. Mechanical-vibration-cancelling piezo ceramic microphone
US5889871A (en) * 1993-10-18 1999-03-30 The United States Of America As Represented By The Secretary Of The Navy Surface-laminated piezoelectric-film sound transducer
US6067363A (en) * 1996-06-03 2000-05-23 Ericsson Inc. Audio A/D convertor using frequency modulation
USH1875H (en) * 1996-07-22 2000-10-03 Microtronic A/S Electroacoustic transducer
US7072476B2 (en) * 1997-02-18 2006-07-04 Matech, Inc. Audio headset
JP3917746B2 (ja) * 1998-03-02 2007-05-23 北陸電気工業株式会社 圧電発音器
US6347147B1 (en) * 1998-12-07 2002-02-12 The United States Of America As Represented By The Sceretary Of The Navy High noise suppression microphone
US6835178B1 (en) * 1999-06-23 2004-12-28 Hologic, Inc. Ultrasonic bone testing with copolymer transducers
US6688169B2 (en) * 2001-06-15 2004-02-10 Textron Systems Corporation Systems and methods for sensing an acoustic signal using microelectromechanical systems technology
US6803700B2 (en) * 2002-06-06 2004-10-12 Caterpillar Inc. Piezoelectric device
JP3985609B2 (ja) * 2002-07-04 2007-10-03 ソニー株式会社 コンデンサーマイクロホン
US6693849B1 (en) * 2002-10-03 2004-02-17 Adolf Eberl Piezoelectric audio transducer
WO2005048574A1 (en) * 2003-11-11 2005-05-26 Matech, Inc. Automatic-switching wireless communication device
WO2005048572A2 (en) * 2003-11-11 2005-05-26 Matech, Inc. Two-way communications device having a single transducer
US6955090B2 (en) * 2003-11-20 2005-10-18 General Electric Company Cylinder pressure transducer and related method
JP4176003B2 (ja) * 2003-12-18 2008-11-05 株式会社オーディオテクニカ 可変指向性コンデンサマイクロホン
US8315379B2 (en) * 2004-11-10 2012-11-20 Matech, Inc. Single transducer full duplex talking circuit
WO2006113341A2 (en) * 2005-04-13 2006-10-26 Par Technologies, Llc. Piezoelectric diaphragm with aperture(s)
US20080212807A1 (en) * 2005-06-08 2008-09-04 General Mems Corporation Micromachined Acoustic Transducers
KR100642913B1 (ko) * 2005-10-29 2006-11-10 드림 소닉 테크놀러지 리미티드 압전필름을 진동소자로 활용한 중저음 보강 박형 스피커
US8265291B2 (en) 2005-11-15 2012-09-11 Active Signal Technologies, Inc. High sensitivity noise immune stethoscope
US20090045217A1 (en) * 2006-04-04 2009-02-19 Bobrowski Nancy L Musical soap dispenser
US20080246367A1 (en) * 2006-12-29 2008-10-09 Adaptivenergy, Llc Tuned laminated piezoelectric elements and methods of tuning same
DE112010002028T5 (de) * 2009-05-18 2012-08-02 Knowles Electronics, Llc Mikrofon mit verringerter Schwingungsempfindlichkeit
CN102111703B (zh) * 2009-12-28 2013-03-20 精拓丽音科技（北京）有限公司 一种振膜打孔型压电平板扬声器
US20130257551A1 (en) * 2010-12-20 2013-10-03 Yasuharu Onishi Oscillator device and electronic instrument
US9407256B2 (en) * 2011-05-30 2016-08-02 Sony Corporation Reducing a disturbance on a signal path of a semiconductor switch
JP5742954B2 (ja) * 2011-10-03 2015-07-01 株式会社村田製作所 超音波発生装置
BR112014027723A2 (pt) 2012-05-11 2017-06-27 3M Innovative Properties Co sensor bioacústico com controle de vibração de ruído
CN104270704A (zh) * 2014-09-25 2015-01-07 苏州乐聚一堂电子科技有限公司 射频感应发声装置
US11039814B2 (en) 2016-12-04 2021-06-22 Exo Imaging, Inc. Imaging devices having piezoelectric transducers
EP3454570A1 (de) * 2017-09-07 2019-03-13 Harpex Ltd Signalerfassungsvorrichtung zur aufnahme dreidimensionaler (3d) wellenfeldsignale
US10656007B2 (en) 2018-04-11 2020-05-19 Exo Imaging Inc. Asymmetrical ultrasound transducer array
US10648852B2 (en) 2018-04-11 2020-05-12 Exo Imaging Inc. Imaging devices having piezoelectric transceivers
CN112470214A (zh) 2018-05-21 2021-03-09 艾科索成像公司 具有q值突变的超声换能器
EP3912158A4 (de) * 2019-01-15 2022-09-28 Exo Imaging Inc. Synthetische linsen für ultraschallbildgebungssysteme
EP4029068A4 (de) 2019-09-12 2023-12-13 Exo Imaging Inc. Erhöhte effizienz und bandbreite der mut-kopplung durch kantennut, virtuelle zapfen und freie grenzen
US11819881B2 (en) 2021-03-31 2023-11-21 Exo Imaging, Inc. Imaging devices having piezoelectric transceivers with harmonic characteristics
US11951512B2 (en) 2021-03-31 2024-04-09 Exo Imaging, Inc. Imaging devices having piezoelectric transceivers with harmonic characteristics

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Publication number Priority date Publication date Assignee Title
DE1065880B (de) * 1959-09-24
US2121779A (en) * 1935-02-12 1938-06-28 Ballantine Stuart Sound translating apparatus
US2198424A (en) * 1937-11-04 1940-04-23 S N Shure Microphone apparatus
NL57684C (de) * 1939-07-11
US2910545A (en) * 1954-08-30 1959-10-27 Gen Electric Transducer
US3107630A (en) * 1955-01-31 1963-10-22 Textron Inc Non-magnetic electro-hydraulic pump
US2967956A (en) * 1955-04-19 1961-01-10 Gulton Ind Inc Transducer
NL283763A (de) * 1961-09-29
US3130275A (en) * 1962-10-15 1964-04-21 Electro Voice Microphone
US3287692A (en) * 1963-02-13 1966-11-22 Raytheon Co Bender type electroacoustical apparatus
US3351393A (en) * 1963-07-10 1967-11-07 United Aircraft Corp Piezoelectric oscillating bearing
US3264861A (en) * 1964-06-08 1966-08-09 Lockheed Aircraft Corp Dynamic pressure generator
US3660602A (en) * 1970-06-01 1972-05-02 Conrac Corp Microphone cartridge with amplifier
JPS4926890B1 (de) * 1970-12-04 1974-07-12
DE2116573A1 (de) * 1971-04-05 1972-10-19 Tn Korperschallkompensierendes Mikrofon
FR2145099A5 (de) * 1971-07-08 1973-02-16 Inst Francais Du Petrole
US3715500A (en) * 1971-07-21 1973-02-06 Bell Telephone Labor Inc Unidirectional microphones
JPS4829420A (de) * 1971-08-20 1973-04-19
US3746898A (en) * 1971-10-18 1973-07-17 Bell Telephone Labor Inc Electroacoustic transducer having improved transducing element supporting means
US3700938A (en) * 1971-12-15 1972-10-24 Bell Telephone Labor Inc Electroacoustic transducer with magnetic transducing element clamping

Also Published As

Publication number Publication date
ATA585075A (de) 1978-08-15
US4156800A (en) 1979-05-29
GB1515287A (en) 1978-06-21
CH587595A5 (de) 1977-05-13
AU494323B2 (en) 1977-01-27
AU8332275A (en) 1977-01-27
MY7900216A (en) 1979-12-31

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee