FR2386953A1 - Dispositif electrique acoustique muni d'au moins une membrane formee par au moins une feuille en polymere piezo-electrique - Google Patents

Dispositif electrique acoustique muni d'au moins une membrane formee par au moins une feuille en polymere piezo-electrique

Info

Publication number
FR2386953A1
FR2386953A1 FR7810087A FR7810087A FR2386953A1 FR 2386953 A1 FR2386953 A1 FR 2386953A1 FR 7810087 A FR7810087 A FR 7810087A FR 7810087 A FR7810087 A FR 7810087A FR 2386953 A1 FR2386953 A1 FR 2386953A1
Authority
FR
France
Prior art keywords
membrane
conversion
signals
acoustic
electrodes
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.)
Granted
Application number
FR7810087A
Other languages
English (en)
French (fr)
Other versions
FR2386953B1 (https=
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2386953A1 publication Critical patent/FR2386953A1/fr
Application granted granted Critical
Publication of FR2386953B1 publication Critical patent/FR2386953B1/fr
Granted 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)
FR7810087A 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 Granted FR2386953A1 (fr)

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 (2)

Publication Number Publication Date
FR2386953A1 true FR2386953A1 (fr) 1978-11-03
FR2386953B1 FR2386953B1 (https=) 1984-06-08

Family

ID=19828323

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810087A Granted 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

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004490A1 (en) * 1984-03-27 1985-10-10 National Research Development Corporation Finding the direction of a sound

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO1991017637A1 (en) * 1990-04-27 1991-11-14 Commonwealth Scientific And Industrial Research Organisation 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
RU2246802C2 (ru) * 1998-06-22 2005-02-20 Слэб Текнолоджи Лимитид Громкоговоритель
JP3597061B2 (ja) 1998-11-13 2004-12-02 日本電気株式会社 圧電スピーカ
GB2358546B (en) * 1998-11-13 2002-01-23 Nec Corp Piezoelectric diaphragm and piezoelectric speaker
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
WO2001031714A1 (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 Membrane position control
US7015624B1 (en) 1999-10-22 2006-03-21 The United States Of America 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
AU2003257394A1 (en) * 2002-07-22 2004-03-03 Hans-Werner Bender Ultrasonic applicator device with a flat, flexible ultrasonic applicator and cavitation medium
EP1886362A2 (en) * 2005-05-31 2008-02-13 Unison Products 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
US20100322455A1 (en) * 2007-11-21 2010-12-23 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
US20110044476A1 (en) * 2009-08-14 2011-02-24 Emo Labs, Inc. System to generate electrical signals for a loudspeaker
US8755535B2 (en) 2009-10-15 2014-06-17 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
US8821415B2 (en) * 2009-10-15 2014-09-02 Masimo Corporation Physiological acoustic monitoring system
WO2011047216A2 (en) 2009-10-15 2011-04-21 Masimo Corporation Physiological acoustic monitoring system
US8790268B2 (en) 2009-10-15 2014-07-29 Masimo Corporation Bidirectional physiological information display
US8801613B2 (en) 2009-12-04 2014-08-12 Masimo Corporation 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
EP3603502B1 (en) 2011-10-13 2023-10-04 Masimo Corporation Physiological acoustic monitoring system
US9955937B2 (en) 2012-09-20 2018-05-01 Masimo Corporation Acoustic patient sensor coupler
US9094743B2 (en) * 2013-03-15 2015-07-28 Emo Labs, Inc. Acoustic transducers
US10828007B1 (en) 2013-10-11 2020-11-10 Masimo Corporation Acoustic sensor with attachment portion
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. 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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
FR2303436A1 (fr) * 1975-03-03 1976-10-01 Philips Nv Dispositif pour convertir des oscillations electriques en vibrations acoustiques et inversement, muni d'une membrane comportant au moins une couche formee par un polymere piezo-electrique

Family Cites Families (14)

* 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
DE1967130C2 (de) * 1968-01-25 1982-04-01 Pioneer Electronic Corp., Tokyo Mechanisch-elektrisch bzw. elektrisch-mechanischer Wandler
JPS4926890B1 (https=) * 1970-12-04 1974-07-12
JPS4829420A (https=) * 1971-08-20 1973-04-19
JPS5410918Y2 (https=) * 1973-12-28 1979-05-18
JPS5745760Y2 (https=) * 1974-02-18 1982-10-08
JPS5215972B2 (https=) * 1974-02-28 1977-05-06
JPS5412213B2 (https=) * 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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
FR2303436A1 (fr) * 1975-03-03 1976-10-01 Philips Nv Dispositif pour convertir des oscillations electriques en vibrations acoustiques et inversement, muni d'une membrane comportant au moins une couche formee par un polymere piezo-electrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004490A1 (en) * 1984-03-27 1985-10-10 National Research Development Corporation Finding the direction of a sound
US4935908A (en) * 1984-03-27 1990-06-19 National Research Development Corporation Finding the direction of a sound

Also Published As

Publication number Publication date
DE2813861C2 (de) 1982-01-21
AT363528B (de) 1981-08-10
DE2813861A1 (de) 1978-10-19
JPS53125821A (en) 1978-11-02
NL7703836A (nl) 1977-06-30
FR2386953B1 (https=) 1984-06-08
US4578613A (en) 1986-03-25
JPS5761239B2 (https=) 1982-12-23
GB1597615A (en) 1981-09-09
ATA236278A (de) 1981-01-15

Similar Documents

Publication Publication Date Title
FR2386953A1 (fr) Dispositif electrique acoustique muni d'au moins une membrane formee par au moins une feuille en polymere piezo-electrique
FR2425785A1 (fr) Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques
US4718421A (en) Ultrasound generator
FR2620893A1 (fr) Transducteur acoustique a selection de frequences
US1803274A (en) Piezo-electric device
FR2385431A1 (fr) Agencement de rondelles-joints pour appareil d'epuration
CA2485336A1 (fr) Machine a effeuiller
FR2445411A1 (fr) Mecanisme de montage pour boutoir a lame oblique
ATE209532T1 (de) Hilfsvorrichtung zum sieben und reinigen mit einer mit ultraschall schwingenden struktur und eine mit einer solchen vorrichtung versehene siebanlage
US1017121A (en) Open-book rest.
US874004A (en) Telephone-transmitter.
US1097414A (en) Adjustable insulator-support.
US336876A (en) Telephone-transmitter
US832135A (en) Combined telephone-receiver and microphone.
US1972511A (en) Piano scale
US1439965A (en) Electrically-heated utensil
JPH0355218Y2 (https=)
KR900001031Y1 (ko) 압전스피커
US346846A (en) Telephone-transmitter
KR900003307Y1 (ko) 압전형 필름 스피커
US1717202A (en) Acoustical device
US238576A (en) Columbus daveg-a
USRE25649E (en) Transducing device
US961883A (en) Stringed musical instrument.
US359658A (en) Banjo

Legal Events

Date Code Title Description
ST Notification of lapse