MY7900216A - Pie zoelectric transducers - Google Patents

Pie zoelectric transducers

Info

Publication number
MY7900216A
MY7900216A MY1979216A MY7900216A MY7900216A MY 7900216 A MY7900216 A MY 7900216A MY 1979216 A MY1979216 A MY 1979216A MY 7900216 A MY7900216 A MY 7900216A MY 7900216 A MY7900216 A MY 7900216A
Authority
MY
Malaysia
Prior art keywords
transducers
pie zoelectric
zoelectric
pie
zoelectric transducers
Prior art date
Application number
MY1979216A
Other languages
English (en)
Inventor
Frederick Sear John
Michael Garner Geoffrey
Original Assignee
The Plessey Company Limited
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 The Plessey Company Limited filed Critical The Plessey Company Limited
Publication of MY7900216A publication Critical patent/MY7900216A/xx

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)
MY1979216A 1974-05-30 1979-12-31 Pie zoelectric transducers MY7900216A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
MY7900216A true MY7900216A (en) 1979-12-31

Family

ID=10226583

Family Applications (1)

Application Number Title Priority Date Filing Date
MY1979216A MY7900216A (en) 1974-05-30 1979-12-31 Pie zoelectric transducers

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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FR2563959B1 (fr) * 1984-05-04 1990-08-10 Lewiner Jacques Perfectionnements aux transducteurs electro-acoustiques a electret
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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
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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
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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
WO2005048572A2 (en) * 2003-11-11 2005-05-26 Matech, Inc. Two-way communications device having a single transducer
WO2005048574A1 (en) * 2003-11-11 2005-05-26 Matech, Inc. Automatic-switching wireless communication device
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
KR20120014591A (ko) * 2009-05-18 2012-02-17 노우레스 일렉트로닉스, 엘엘시 감소된 진동 감도를 갖는 마이크로폰
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
WO2012163371A1 (en) * 2011-05-30 2012-12-06 Sony Ericsson Mobile Communications Ab Reducing a disturbance on a signal path of a semiconductor switch
CN103858442B (zh) * 2011-10-03 2016-11-02 株式会社村田制作所 超声波发生装置
CN104684485A (zh) 2012-05-11 2015-06-03 3M创新有限公司 带噪声振动控制的生物声学传感器
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
JP7406255B2 (ja) * 2018-05-21 2023-12-27 エコー イメージング，インク． Ｑ値低減を有する超音波トランスデューサ
KR20210114497A (ko) * 2019-01-15 2021-09-23 엑소 이미징, 인크. 초음파 이미징 시스템용 합성 렌즈
US11794209B2 (en) 2019-09-12 2023-10-24 Exo Imaging, Inc. Increased MUT coupling efficiency and bandwidth via edge groove, virtual pivots, and free boundaries
US11951512B2 (en) 2021-03-31 2024-04-09 Exo Imaging, Inc. Imaging devices having piezoelectric transceivers with harmonic characteristics
US11819881B2 (en) 2021-03-31 2023-11-21 Exo Imaging, Inc. Imaging devices having piezoelectric transceivers with harmonic characteristics

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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
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US3351393A (en) * 1963-07-10 1967-11-07 United Aircraft Corp Piezoelectric oscillating bearing
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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
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JPS4829420A (de) * 1971-08-20 1973-04-19
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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
GB1515287A (en) 1978-06-21
CH587595A5 (de) 1977-05-13
AT349084B (de) 1979-03-26
AU494323B2 (en) 1977-01-27
US4156800A (en) 1979-05-29
AU8332275A (en) 1977-01-27
ATA585075A (de) 1978-08-15

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