NL7703836A - Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal. - Google Patents

Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal.

Info

Publication number
NL7703836A
NL7703836A NL7703836A NL7703836A NL7703836A NL 7703836 A NL7703836 A NL 7703836A NL 7703836 A NL7703836 A NL 7703836A NL 7703836 A NL7703836 A NL 7703836A NL 7703836 A NL7703836 A NL 7703836A
Authority
NL
Netherlands
Prior art keywords
piezelectric
foil
polymer material
membrane consisting
membrane
Prior art date
Application number
NL7703836A
Other languages
English (en)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL7703836A priority Critical patent/NL7703836A/nl
Publication of NL7703836A publication Critical patent/NL7703836A/nl
Priority to DE2813861A priority patent/DE2813861C2/de
Priority to GB13157/78A priority patent/GB1597615A/en
Priority to AT0236278A priority patent/AT363528B/de
Priority to FR7810087A priority patent/FR2386953A1/fr
Priority to JP4041678A priority patent/JPS53125821A/ja
Priority to US06/114,858 priority patent/US4578613A/en

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
    • 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
NL7703836A 1977-04-07 1977-04-07 Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal. NL7703836A (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL7703836A NL7703836A (nl) 1977-04-07 1977-04-07 Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal.
DE2813861A DE2813861C2 (de) 1977-04-07 1978-03-31 Eine aus mindestens einer Folie aus einem piezoelektrischen Polymermaterial bestehende Membran
GB13157/78A GB1597615A (en) 1977-04-07 1978-04-04 Electro-acoustic device
AT0236278A AT363528B (de) 1977-04-07 1978-04-04 Elektroakustische vorrichtung
FR7810087A FR2386953A1 (fr) 1977-04-07 1978-04-05 Dispositif electrique acoustique muni d'au moins une membrane formee par au moins une feuille en polymere piezo-electrique
JP4041678A JPS53125821A (en) 1977-04-07 1978-04-07 Electric sound apparatus
US06/114,858 US4578613A (en) 1977-04-07 1980-01-24 Diaphragm comprising at least one foil of a piezoelectric polymer material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7703836A NL7703836A (nl) 1977-04-07 1977-04-07 Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal.

Publications (1)

Publication Number Publication Date
NL7703836A true NL7703836A (nl) 1977-06-30

Family

ID=19828323

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7703836A NL7703836A (nl) 1977-04-07 1977-04-07 Een membraan bestaande uit tenminste een folie van een piezoelektrisch polymeermateriaal.

Country Status (7)

Country Link
US (1) US4578613A (nl)
JP (1) JPS53125821A (nl)
AT (1) AT363528B (nl)
DE (1) DE2813861C2 (nl)
FR (1) FR2386953A1 (nl)
GB (1) GB1597615A (nl)
NL (1) NL7703836A (nl)

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GB2156521B (en) * 1984-03-27 1987-09-09 Nat Res Dev Finding the direction of a sound
US4858729A (en) * 1985-06-26 1989-08-22 Rockwell International Corporation Brake support assembly
IL86705A0 (en) * 1988-06-10 1988-11-30 Sotek Ind Engineering Ltd Fluid flow metering apparatus
USRE35114E (en) * 1988-06-10 1995-12-12 Measurement Technology International Fluid flow meter
US5069067A (en) * 1988-06-10 1991-12-03 Select Corporation Fluid flow meter
USRE36658E (en) * 1988-06-29 2000-04-18 Measurement Technology International Fluid flow meter
US5434830A (en) * 1990-04-27 1995-07-18 Commonwealth Scientific And Industrial Research Organization Ultrasonic transducer
AU660610B2 (en) * 1990-04-27 1995-07-06 AGL Consultancy Pty. Limited Ultrasonic transducer
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
US5350966A (en) * 1991-11-12 1994-09-27 Rockwell International Corporation Piezocellular propulsion
US5283835A (en) * 1991-11-15 1994-02-01 Athanas Lewis S Ferroelectric composite film acoustic transducer
US5321332A (en) * 1992-11-12 1994-06-14 The Whitaker Corporation Wideband ultrasonic transducer
US5347862A (en) * 1992-11-23 1994-09-20 Dov Ingman Fluid flow meter
US5553503A (en) 1994-10-11 1996-09-10 Manometrx Group Ltd Measurement of fluid pressure such as blood pressure
GB2358546B (en) * 1998-11-13 2002-01-23 Nec Corp Piezoelectric diaphragm and piezoelectric speaker
JP3597061B2 (ja) 1998-11-13 2004-12-02 日本電気株式会社 圧電スピーカ
JP4136221B2 (ja) * 1999-09-09 2008-08-20 本田技研工業株式会社 スピーカ内蔵ヘルメットおよびヘルメット用スピーカ
JP4363554B2 (ja) * 1999-10-08 2009-11-11 タイコエレクトロニクスアンプ株式会社 二輪車ライダー用スピーカ内蔵ヘルメット
US6724130B1 (en) 1999-10-22 2004-04-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Membrane position control
AU1101201A (en) 1999-10-22 2001-05-08 Government of the United States of America as represented by the Administrator of the National Aeronautics and Space Administration (NASA), The Non-uniform thickness electroactive device
WO2001031715A1 (en) 1999-10-22 2001-05-03 The Government Of The United States As Represented By The Administrator Of The National Aeronautics And Space Administration Non-uniform thickness electroactive device
US6720708B2 (en) * 2000-01-07 2004-04-13 Lewis Athanas Mechanical-to-acoustical transformer and multi-media flat film speaker
US6661161B1 (en) * 2002-06-27 2003-12-09 Andromed Inc. Piezoelectric biological sound monitor with printed circuit board
EP1575657A2 (de) * 2002-07-22 2005-09-21 Hans-Werner Bender Schallapplikator-vorrichtung mit flächigem flexiblem schallapplikator und kavitationsmedium
CA2610483A1 (en) * 2005-05-31 2006-12-07 Emo Labs, Inc. Diaphragm membrane and supporting structure responsive to environmental conditions
US20090093687A1 (en) * 2007-03-08 2009-04-09 Telfort Valery G Systems and methods for determining a physiological condition using an acoustic monitor
WO2009067669A1 (en) * 2007-11-21 2009-05-28 Emo Labs, Inc.. Wireless loudspeaker
US8771204B2 (en) 2008-12-30 2014-07-08 Masimo Corporation Acoustic sensor assembly
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
WO2011020100A1 (en) * 2009-08-14 2011-02-17 Emo Labs, Inc System to generate electrical signals for a loudspeaker
US8870792B2 (en) 2009-10-15 2014-10-28 Masimo Corporation Physiological acoustic monitoring system
WO2011047216A2 (en) 2009-10-15 2011-04-21 Masimo Corporation Physiological acoustic monitoring system
US10463340B2 (en) 2009-10-15 2019-11-05 Masimo Corporation Acoustic respiratory monitoring systems and methods
US8690799B2 (en) 2009-10-15 2014-04-08 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
US8790268B2 (en) 2009-10-15 2014-07-29 Masimo Corporation Bidirectional physiological information display
GB2487882B (en) 2009-12-04 2017-03-29 Masimo Corp Calibration for multi-stage physiological monitors
US9326712B1 (en) 2010-06-02 2016-05-03 Masimo Corporation Opticoustic sensor
US9192351B1 (en) 2011-07-22 2015-11-24 Masimo Corporation Acoustic respiratory monitoring sensor with probe-off detection
US9955937B2 (en) 2012-09-20 2018-05-01 Masimo Corporation Acoustic patient sensor coupler
EP2969264A4 (en) 2013-03-15 2016-11-23 Emo Labs Inc ACOUSTIC TRANSDUCERS HAVING A BEND LIMITATION ELEMENT
US10828007B1 (en) 2013-10-11 2020-11-10 Masimo Corporation Acoustic sensor with attachment portion
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. Speaker
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker
JP6130807B2 (ja) * 2014-03-31 2017-05-17 富士フイルム株式会社 電気音響変換器

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR941286A (fr) * 1947-06-24 1949-01-06 Bilame à magnétostriction
DE1902849C3 (de) * 1968-01-25 1978-06-29 Pioneer Electronic Corp., Tokio Mechanisch-elektrisch bzw. elektrisch-mechanischer Wandler
JPS4926890B1 (nl) * 1970-12-04 1974-07-12
JPS4829420A (nl) * 1971-08-20 1973-04-19
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
JPS5410918Y2 (nl) * 1973-12-28 1979-05-18
JPS5745760Y2 (nl) * 1974-02-18 1982-10-08
JPS5215972B2 (nl) * 1974-02-28 1977-05-06
JPS5412213B2 (nl) * 1974-05-15 1979-05-21
GB1515287A (en) * 1974-05-30 1978-06-21 Plessey Co Ltd Piezoelectric transducers
JPS5181220A (ja) * 1975-01-09 1976-07-16 Nippon Soken Haikigasujokasochi
NL7502453A (nl) * 1975-03-03 1976-09-07 Philips Nv Inrichting voor het omzetten van elektrische in akoestische trillingen en omgekeerd, voorzien van een membraan, bevattende tenminste een laag piezo-elektrisch polymeer materiaal.
GB1520118A (en) * 1975-08-11 1978-08-02 Rank Organisation Ltd Transducers
JPS5274332A (en) * 1975-12-17 1977-06-22 Matsushita Electric Ind Co Ltd Electric acoustic converter
JPS5333613A (en) * 1976-09-09 1978-03-29 Matsushita Electric Ind Co Ltd Microphone and its manufacture
US4056742A (en) * 1976-04-30 1977-11-01 Tibbetts Industries, Inc. Transducer having piezoelectric film arranged with alternating curvatures

Also Published As

Publication number Publication date
US4578613A (en) 1986-03-25
GB1597615A (en) 1981-09-09
ATA236278A (de) 1981-01-15
DE2813861A1 (de) 1978-10-19
FR2386953A1 (fr) 1978-11-03
JPS5761239B2 (nl) 1982-12-23
DE2813861C2 (de) 1982-01-21
AT363528B (de) 1981-08-10
JPS53125821A (en) 1978-11-02
FR2386953B1 (nl) 1984-06-08

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BC A request for examination has been filed
BI The patent application has been withdrawn