CA1118090A - Electromechanical transducers using an electret - Google Patents

Electromechanical transducers using an electret

Info

Publication number
CA1118090A
CA1118090A CA000306344A CA306344A CA1118090A CA 1118090 A CA1118090 A CA 1118090A CA 000306344 A CA000306344 A CA 000306344A CA 306344 A CA306344 A CA 306344A CA 1118090 A CA1118090 A CA 1118090A
Authority
CA
Canada
Prior art keywords
electret
transducer according
intermediate layer
transducer
layer
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
Application number
CA000306344A
Other languages
English (en)
French (fr)
Inventor
Jacques Lewiner
Claude Hennion
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1118090A publication Critical patent/CA1118090A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
    • H02N1/06—Influence generators
    • H02N1/08—Influence generators with conductive charge carrier, i.e. capacitor machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measuring Fluid Pressure (AREA)
CA000306344A 1977-07-04 1978-06-28 Electromechanical transducers using an electret Expired CA1118090A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7720524 1977-07-04
FR7720524A FR2397120A1 (fr) 1977-07-04 1977-07-04 Perfectionnements aux transducteurs electromecaniques

Publications (1)

Publication Number Publication Date
CA1118090A true CA1118090A (en) 1982-02-09

Family

ID=9192950

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000306344A Expired CA1118090A (en) 1977-07-04 1978-06-28 Electromechanical transducers using an electret

Country Status (11)

Country Link
US (1) US4250415A (https=)
JP (1) JPS5414696A (https=)
BE (1) BE868729A (https=)
CA (1) CA1118090A (https=)
CH (1) CH624523A5 (https=)
DE (1) DE2829225A1 (https=)
FR (1) FR2397120A1 (https=)
GB (1) GB2013032B (https=)
IT (1) IT1103644B (https=)
NL (1) NL7807245A (https=)
SE (1) SE7807402L (https=)

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US4370182A (en) * 1981-03-16 1983-01-25 Gte Products Corporation Method of making tape transducer
DE3127406C2 (de) * 1981-07-10 1986-03-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Modulationsvorrichtung zur optischen Signalübertragung
US5234551A (en) * 1981-09-24 1993-08-10 Dutt William H Extended nip press belt having an interwoven base fabric and an impervious impregnant
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US4524247A (en) * 1983-07-07 1985-06-18 At&T Bell Laboratories Integrated electroacoustic transducer with built-in bias
DE3333083C2 (de) * 1983-09-14 1987-04-23 Metev Gesellschaft für Entwicklung und Verwertung med. Bedarfs GmbH & Co KG, 4840 Rheda-Wiedenbrück Verfahren zum Herstellen eines elektrisch permanent geladenen Schichtmaterials für therapeutische Behandlung
US4805157A (en) * 1983-12-02 1989-02-14 Raytheon Company Multi-layered polymer hydrophone array
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US4567382A (en) * 1984-04-10 1986-01-28 Microtel B.V. Electret transducer and a method for manufacturing an assembly of backplate, electret foil and diaphragm plate
CA1277415C (en) * 1986-04-11 1990-12-04 Lorne A. Whitehead Elastomer membrane enhanced electrostatic transducer
US4808849A (en) * 1987-02-03 1989-02-28 Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee Phyllosilicate electrets and a method for their manufacture
FR2632737B1 (fr) * 1988-06-10 1992-12-24 Thomson Csf Procede d'obtention d'une structure generatrice d'effets electrooptiques non lineaires, structure obtenue et applications
US4939784A (en) * 1988-09-19 1990-07-03 Bruney Paul F Loudspeaker structure
US5206914A (en) * 1990-01-05 1993-04-27 Koss Corporation Electrostatic acoustic transducer having extremely thin diaphragm substrate
DE4429033A1 (de) * 1994-08-16 1996-02-22 Gore W L & Ass Gmbh Bewegungssensor
DE4429035A1 (de) * 1994-08-16 1996-02-22 Gore W L & Ass Gmbh Bewegungssensor
US5835027A (en) * 1996-11-07 1998-11-10 Tyburski; Robert M. Residual charge effect traffic sensor
US5907280A (en) * 1997-04-28 1999-05-25 Dkl International, Inc. Static electrification assisted dielectrokinesis detection of plastics and other materials
KR100792304B1 (ko) * 1999-11-25 2008-01-07 내츄럴 컬러 카리 키르자바이넨 오와이 전기기계적 막과 음향 엘리먼트
FI108204B (fi) * 1999-11-25 2001-11-30 Kari Johannes Kirjavainen Kalvo energioiden muuntamiseksi
AU2002243224A1 (en) * 2000-11-16 2002-06-24 The Trustees Of The Stevens Institute Of Technology Large aperture vibration and acoustic sensor
FI118369B (fi) * 2000-12-19 2007-10-15 Emfitech Oy Sähkömekaaninen muunnin ja menetelmä sähkömekaanisen muuntimen valmistamiseksi
DE10222123A1 (de) * 2002-05-17 2003-11-27 Aircabin Gmbh Absenkbares Gepäckfach mit Gasdruckfederverriegelung
DE60221296T2 (de) * 2002-05-22 2008-04-03 Hannu Olkkonen Elektretwandler
EP1512216A2 (en) * 2002-06-07 2005-03-09 California Institute Of Technology Electret generator apparatus and method
US20040016120A1 (en) * 2002-06-07 2004-01-29 California Institute Of Technology Method and resulting device for fabricating electret materials on bulk substrates
DE102007007957A1 (de) * 2007-02-17 2008-08-21 Lyttron Technology Gmbh Lautsprecher aufgebaut aus Folien
TWI343756B (en) * 2009-08-10 2011-06-11 Ind Tech Res Inst Flat loudspeaker structure
CN101946295B (zh) * 2008-02-22 2012-11-28 旭硝子株式会社 驻极体及静电感应型转换元件
WO2009119678A1 (ja) * 2008-03-27 2009-10-01 旭硝子株式会社 エレクトレットおよび静電誘導型変換素子
KR101467017B1 (ko) * 2008-03-31 2014-12-01 아사히 가라스 가부시키가이샤 가속도 센서 장치 및 센서 네트워크 시스템
JP5381979B2 (ja) * 2008-04-17 2014-01-08 旭硝子株式会社 エレクトレットおよびその製造方法、ならびに静電誘導型変換素子
WO2010032759A1 (ja) * 2008-09-19 2010-03-25 旭硝子株式会社 エレクトレット及び静電誘導型変換素子
EP2400573A1 (de) * 2010-06-23 2011-12-28 Bayer MaterialScience AG Elektromechanischer Wandler, Verfahren zu dessen Herstellung und Verwendung desselben
TWM395976U (en) * 2010-06-30 2011-01-01 Tsung-Hung Wu Electret electroacoustic transducer
JP5559229B2 (ja) * 2012-03-23 2014-07-23 東海ゴム工業株式会社 トランスデューサ
DE102012202422A1 (de) * 2012-02-16 2013-08-22 Robert Bosch Gmbh Schallwandleranordnung
US9161113B1 (en) 2012-02-17 2015-10-13 Elvin Fenton Transparent lens microphone
US9980054B2 (en) 2012-02-17 2018-05-22 Acoustic Vision, Llc Stereophonic focused hearing
JP5691080B2 (ja) * 2012-07-25 2015-04-01 株式会社ビスキャス 振動発電体およびその製造方法と発電方法
JP5691085B2 (ja) * 2012-07-25 2015-04-01 株式会社ビスキャス 振動発電体およびこれを用いた発電方法
JP6133050B2 (ja) * 2012-12-18 2017-05-24 古河電気工業株式会社 積層発電装置
JP6133051B2 (ja) * 2012-12-18 2017-05-24 古河電気工業株式会社 積層発電体、積層発電体の発電方法
JP6097550B2 (ja) * 2012-12-18 2017-03-15 古河電気工業株式会社 積層発電体
JP6133118B2 (ja) * 2013-04-24 2017-05-24 古河電気工業株式会社 振動発電体
CN104242723B (zh) * 2013-06-13 2019-06-04 北京纳米能源与系统研究所 单电极摩擦纳米发电机、发电方法和自驱动追踪装置
JP6278619B2 (ja) * 2013-06-14 2018-02-14 古河電気工業株式会社 振動発電体
JP6247928B2 (ja) * 2013-12-25 2017-12-13 古河電気工業株式会社 振動発電体
JP6494597B2 (ja) * 2014-03-26 2019-04-03 シチズン時計株式会社 静電誘導型発電器
JP6699119B2 (ja) 2015-01-22 2020-05-27 株式会社リコー 素子及び発電装置
US10248241B2 (en) 2015-05-07 2019-04-02 Ricoh Company, Ltd. Digital signage system
US10305020B2 (en) * 2015-05-15 2019-05-28 Ricoh Company, Ltd. Element and electric generator
JP6645161B2 (ja) * 2015-12-11 2020-02-14 株式会社リコー 発電装置
JP6828820B2 (ja) * 2017-07-13 2021-02-10 日本製鉄株式会社 方向性電磁鋼板、及び方向性電磁鋼板の製造方法
JP2019106440A (ja) * 2017-12-12 2019-06-27 日東電工株式会社 エレクトレットフィルム
JP7505741B2 (ja) * 2020-05-20 2024-06-25 国立大学法人東京工業大学 薄膜人工皮膚
JP7622495B2 (ja) 2021-03-23 2025-01-28 株式会社リコー 素子
CN117501860A (zh) 2021-06-29 2024-02-02 株式会社村田制作所 构造体
CN116133505A (zh) * 2023-01-29 2023-05-16 华东理工大学 压电驻极体、制备方法以及压电传感器
DE102023103428A1 (de) * 2023-02-13 2024-08-14 Technische Universität Darmstadt, Körperschaft des öffentlichen Rechts Elektromechanisches Wandlerelement
US20250030315A1 (en) * 2023-07-21 2025-01-23 Barak Cilluffo Power producing apparatuses and methods of use

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967027A (en) * 1969-12-19 1976-06-29 Kureha Kagaku Kogyo Kabushiki Kaisha Stable electret retaining a high surface potential and method of making the same
US3736436A (en) * 1971-11-04 1973-05-29 Mc Donnell Douglas Corp Electret pressure transducer

Also Published As

Publication number Publication date
BE868729A (fr) 1979-01-04
CH624523A5 (https=) 1981-07-31
GB2013032A (en) 1979-08-01
DE2829225A1 (de) 1979-01-18
IT7809516A0 (it) 1978-06-30
FR2397120B1 (https=) 1982-12-31
JPS5414696A (en) 1979-02-03
FR2397120A1 (fr) 1979-02-02
IT1103644B (it) 1985-10-14
GB2013032B (en) 1982-03-17
SE7807402L (sv) 1979-01-05
NL7807245A (nl) 1979-01-08
US4250415A (en) 1981-02-10

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