GB2111799A - Electro acoustic transducer - Google Patents

Electro acoustic transducer Download PDF

Info

Publication number
GB2111799A
GB2111799A GB08222881A GB8222881A GB2111799A GB 2111799 A GB2111799 A GB 2111799A GB 08222881 A GB08222881 A GB 08222881A GB 8222881 A GB8222881 A GB 8222881A GB 2111799 A GB2111799 A GB 2111799A
Authority
GB
United Kingdom
Prior art keywords
plate
transducer
electrodes
faces
polarized
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.)
Withdrawn
Application number
GB08222881A
Other languages
English (en)
Inventor
Pierre Ravinet
Francois Micheron
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB2111799A publication Critical patent/GB2111799A/en
Withdrawn legal-status Critical Current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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB08222881A 1981-08-11 1982-08-09 Electro acoustic transducer Withdrawn GB2111799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8115507A FR2511571A1 (fr) 1981-08-11 1981-08-11 Transducteur electroacoustique a condensateur a dielectrique solide polarise

Publications (1)

Publication Number Publication Date
GB2111799A true GB2111799A (en) 1983-07-06

Family

ID=9261362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08222881A Withdrawn GB2111799A (en) 1981-08-11 1982-08-09 Electro acoustic transducer

Country Status (5)

Country Link
EP (1) EP0072289A3 (enExample)
JP (1) JPS5841000A (enExample)
KR (1) KR840001425A (enExample)
FR (1) FR2511571A1 (enExample)
GB (1) GB2111799A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425176A1 (de) * 1984-07-09 1986-02-20 Fernsprech Und Signalbau Kg Sc Piezoelektrische fernsprechkapsel
DE3425175A1 (de) * 1984-07-09 1986-03-27 Fernsprech- und Signalbau KG Schüler & Vershoven, 4300 Essen Piezoelektrischer, akustischer wandler
US6804363B2 (en) 2002-04-11 2004-10-12 Rion Co., Ltd. Electroacoustic transducer
DE102010021157A1 (de) * 2010-05-21 2011-11-24 Daniela Manger 3D-Stereospaltmikrofon
EP2549557A3 (en) * 2011-07-20 2014-03-05 Samsung Electronics Co., Ltd. Electric energy generating device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542552B1 (fr) * 1983-03-07 1986-04-11 Thomson Csf Transducteur electroacoustique a diaphragme piezo-electrique
DE3825973A1 (de) * 1988-07-29 1990-02-01 Siemens Ag Elektroakustischer einheitswandler

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1131741B (de) * 1961-02-03 1962-06-20 Siemens Ag Elektrostriktive Membran fuer einen elektroakustischen Wandler
FR1334235A (fr) * 1961-09-29 1963-08-02 Siemens Ag Transformateur électro-acoustique
US4170742A (en) * 1974-07-15 1979-10-09 Pioneer Electronic Corporation Piezoelectric transducer with multiple electrode areas
GB1520118A (en) * 1975-08-11 1978-08-02 Rank Organisation Ltd Transducers
GB1565860A (en) * 1976-04-02 1980-04-23 Matsushita Electric Industrial Co Ltd Microphone utilizing high-polymer piezoelectric membrane

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425176A1 (de) * 1984-07-09 1986-02-20 Fernsprech Und Signalbau Kg Sc Piezoelektrische fernsprechkapsel
DE3425175A1 (de) * 1984-07-09 1986-03-27 Fernsprech- und Signalbau KG Schüler & Vershoven, 4300 Essen Piezoelektrischer, akustischer wandler
DE3425176C2 (enExample) * 1984-07-09 1989-03-16 Fernsprech- Und Signalbau Gmbh & Co Kg Schueler & Vershoven, 4300 Essen, De
US6804363B2 (en) 2002-04-11 2004-10-12 Rion Co., Ltd. Electroacoustic transducer
DE102010021157A1 (de) * 2010-05-21 2011-11-24 Daniela Manger 3D-Stereospaltmikrofon
EP2549557A3 (en) * 2011-07-20 2014-03-05 Samsung Electronics Co., Ltd. Electric energy generating device

Also Published As

Publication number Publication date
KR840001425A (ko) 1984-04-30
JPS5841000A (ja) 1983-03-10
FR2511571B1 (enExample) 1983-12-02
EP0072289A2 (fr) 1983-02-16
FR2511571A1 (fr) 1983-02-18
EP0072289A3 (fr) 1983-04-06

Similar Documents

Publication Publication Date Title
Heydt et al. Acoustical performance of an electrostrictive polymer film loudspeaker
US2386279A (en) Piezoelectric device
US4649312A (en) Reinforced piezoelectric transducer and pressure sensor using such a transducer
Kressmann New piezoelectric polymer for air-borne and water-borne sound transducers
US4638206A (en) Sheet-like piezoelectric element
US3787642A (en) Electrostatic transducer having resilient electrode
US4401911A (en) Active suspension piezoelectric polymer transducer
US2403692A (en) Piezoelectric device
US3798473A (en) Polymer type electroacoustic transducer element
US3792204A (en) Acoustic transducer using a piezoelectric polyvinylidene fluoride resin film as the oscillator
GB1577678A (en) Electro-mechanical transducer using a piezoelectric film
EP0174897B1 (en) Underwater piezoelectric arrangement
US6490360B2 (en) Dual bi-laminate polymer audio transducer
JP2591737B2 (ja) 超音波センサ
US4841494A (en) Underwater piezoelectric arrangement
Sullivan et al. Piezoelectric polymer flexural disk hydrophone
GB2111799A (en) Electro acoustic transducer
US3697790A (en) Transducers having piezoelectric struts
US20060113879A1 (en) Piezoelectric micro acoustic sensor based on ferroelectric materials
CN114026883B (zh) 声压-电信号变换装置及其变换方法
JPS62149299A (ja) アレイ型超音波トランスデユ−サ
US3150347A (en) Underwater transducer element
KR101994583B1 (ko) Mems 압전형 마이크로폰
Tressler et al. Capped ceramic hydrophones
JP2003153395A (ja) 電気音響変換器

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)