FR2620893B1 - Transducteur acoustique a selection de frequences - Google Patents

Transducteur acoustique a selection de frequences

Info

Publication number
FR2620893B1
FR2620893B1 FR888811928A FR8811928A FR2620893B1 FR 2620893 B1 FR2620893 B1 FR 2620893B1 FR 888811928 A FR888811928 A FR 888811928A FR 8811928 A FR8811928 A FR 8811928A FR 2620893 B1 FR2620893 B1 FR 2620893B1
Authority
FR
France
Prior art keywords
acoustic transducer
frequency selection
selection
frequency
acoustic
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.)
Expired - Lifetime
Application number
FR888811928A
Other languages
English (en)
Other versions
FR2620893A1 (fr
Inventor
Helmut Seidel
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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm 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 Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of FR2620893A1 publication Critical patent/FR2620893A1/fr
Application granted granted Critical
Publication of FR2620893B1 publication Critical patent/FR2620893B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/04—Frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR888811928A 1987-09-17 1988-09-13 Transducteur acoustique a selection de frequences Expired - Lifetime FR2620893B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873731196 DE3731196A1 (de) 1987-09-17 1987-09-17 Frequenzselektiver schallwandler

Publications (2)

Publication Number Publication Date
FR2620893A1 FR2620893A1 (fr) 1989-03-24
FR2620893B1 true FR2620893B1 (fr) 1992-06-19

Family

ID=6336194

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888811928A Expired - Lifetime FR2620893B1 (fr) 1987-09-17 1988-09-13 Transducteur acoustique a selection de frequences

Country Status (4)

Country Link
US (1) US4885781A (fr)
DE (1) DE3731196A1 (fr)
FR (1) FR2620893B1 (fr)
GB (1) GB2210232B (fr)

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US5115472A (en) * 1988-10-07 1992-05-19 Park Kyung T Electroacoustic novelties
US5838805A (en) * 1995-11-06 1998-11-17 Noise Cancellation Technologies, Inc. Piezoelectric transducers
US6011855A (en) * 1997-03-17 2000-01-04 American Technology Corporation Piezoelectric film sonic emitter
US6304662B1 (en) 1998-01-07 2001-10-16 American Technology Corporation Sonic emitter with foam stator
US20020076069A1 (en) * 1998-01-07 2002-06-20 American Technology Corporation Sonic emitter with foam stator
US6188772B1 (en) 1998-01-07 2001-02-13 American Technology Corporation Electrostatic speaker with foam stator
AU7717398A (en) 1997-06-19 1999-01-04 Nct Group, Inc. Loudspeaker assembly
US6492761B1 (en) * 1998-01-20 2002-12-10 Ericsson Inc. Digital piezoelectric transducers and methods
US6249586B1 (en) * 1998-01-21 2001-06-19 Fachhochschule Furtwangen Slot microphone
TW526327B (en) * 1998-02-19 2003-04-01 Sumitomo Metal Ind Detection apparatus and method of physical variable
JP3348687B2 (ja) * 1998-05-22 2002-11-20 住友金属工業株式会社 振動波検出方法及び装置
JP3348686B2 (ja) * 1998-05-22 2002-11-20 住友金属工業株式会社 振動波検出方法及び装置
US6175636B1 (en) 1998-06-26 2001-01-16 American Technology Corporation Electrostatic speaker with moveable diaphragm edges
GB9818719D0 (en) * 1998-08-28 1998-10-21 New Transducers Ltd Vubration exciter
US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
DE19917372B4 (de) * 1999-04-16 2009-01-02 Prüftechnik Dieter Busch AG Meßgerät zum Erfassen der Temperatur und der Schwingungen einer Oberfläche
US6522762B1 (en) 1999-09-07 2003-02-18 Microtronic A/S Silicon-based sensor system
US6651504B1 (en) * 1999-09-16 2003-11-25 Ut-Battelle, Llc Acoustic sensors using microstructures tunable with energy other than acoustic energy
WO2001050810A1 (fr) * 2000-01-04 2001-07-12 American Technology Corporation Emetteur sonique a couche piezo-electrique
JP2005503685A (ja) * 2001-01-22 2005-02-03 アメリカン・テクノロジー・コーポレーション 改良非平衡平面型磁気スピーカー
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
JP2004081295A (ja) * 2002-08-23 2004-03-18 Tokyo Electron Ltd 人工内耳
JP3886483B2 (ja) * 2003-10-14 2007-02-28 東京エレクトロン株式会社 音響センサ
US7564981B2 (en) 2003-10-23 2009-07-21 American Technology Corporation Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
JP4256367B2 (ja) * 2005-07-06 2009-04-22 東京エレクトロン株式会社 振動波検出装置
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
DE102007026288A1 (de) * 2007-06-06 2009-01-15 Bröckling, Andreas, Dipl.-Ing. (FH) Akustischer Druck-, Schallsensor
KR100941773B1 (ko) * 2007-10-25 2010-02-11 한국기계연구원 자가전원 기능을 갖는 인공와우의 주파수 분석기
KR100931575B1 (ko) * 2007-12-07 2009-12-14 한국전자통신연구원 Ｍｅｍｓ를 이용한 압전 소자 마이크로 스피커 및 그 제조방법
CA2802862A1 (fr) 2010-06-14 2011-12-22 Elwood G. Norris Traitement de signaux parametriques ameliore et systemes d'emetteur et procedes lies
DE102011086722A1 (de) * 2011-11-21 2013-05-23 Robert Bosch Gmbh Mikromechanische Funktionsvorrichtung, insbesondere Lautsprechervorrichtung, und entsprechendes Herstellungsverfahren
WO2013106596A1 (fr) 2012-01-10 2013-07-18 Parametric Sound Corporation Systèmes d'amplification, systèmes de poursuite de porteuse et procédés apparentés à mettre en œuvre dans des systèmes sonores paramétriques
US8958580B2 (en) 2012-04-18 2015-02-17 Turtle Beach Corporation Parametric transducers and related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
KR102207928B1 (ko) * 2014-08-13 2021-01-26 삼성전자주식회사 음향 센싱 소자 및 주파수 정보 획득 방법
US9862592B2 (en) 2015-03-13 2018-01-09 Taiwan Semiconductor Manufacturing Co., Ltd. MEMS transducer and method for manufacturing the same
SG11202107460RA (en) 2019-01-11 2021-08-30 Hemideina Pty Ltd Acoustic devices
US11743656B2 (en) * 2021-05-27 2023-08-29 Harman International Industries, Incorporated Multi-stage structure-borne sound and vibration sensor
US11533568B1 (en) 2021-05-27 2022-12-20 Harman International Industries, Incorporated Structure-borne sound and vibration sensor
WO2023015477A1 (fr) 2021-08-11 2023-02-16 深圳市韶音科技有限公司 Microphone
KR20230069710A (ko) * 2021-11-12 2023-05-19 삼성전자주식회사 지향성 음향 센서

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US3422371A (en) * 1967-07-24 1969-01-14 Sanders Associates Inc Thin film piezoelectric oscillator
US3947708A (en) * 1974-11-27 1976-03-30 Gte Laboratories Incorporated Apparatus for and method of converting from a digital signal to an acoustic wave using a piezoelectric beam
US3983518A (en) * 1975-04-24 1976-09-28 De Statt Der Nederlanden, Te Dezen Vertegenwoordigd Door De Directeur-Generaal Der Posterijen, Telegrafie En Telefonie Filter chain
US4075600A (en) * 1976-06-10 1978-02-21 The United States Of America As Represented By The Secretary Of The Navy Dual resonance bender transducer
US4517486A (en) * 1984-02-21 1985-05-14 The United States Of America As Represented By The Secretary Of The Army Monolitic band-pass filter using piezoelectric cantilevers
NL8502807A (nl) * 1984-10-15 1986-05-01 Clarion Co Ltd Akoestische oppervlakte-golfinrichting.
GB2168481B (en) * 1984-12-13 1988-07-06 Stc Plc Silicon transducer
US4751419A (en) * 1986-12-10 1988-06-14 Nitto Incorporated Piezoelectric oscillation assembly including several individual piezoelectric oscillation devices having a common oscillation plate member
US4783821A (en) * 1987-11-25 1988-11-08 The Regents Of The University Of California IC processed piezoelectric microphone

Also Published As

Publication number Publication date
FR2620893A1 (fr) 1989-03-24
DE3731196A1 (de) 1989-03-30
GB2210232A (en) 1989-06-01
US4885781A (en) 1989-12-05
DE3731196C2 (fr) 1989-06-22
GB2210232B (en) 1990-10-24
GB8821530D0 (en) 1988-10-12

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse