FR2628282B1 - Capsule electroacoustique a membrane piezoelectrique - Google Patents

Capsule electroacoustique a membrane piezoelectrique

Info

Publication number
FR2628282B1
FR2628282B1 FR8802969A FR8802969A FR2628282B1 FR 2628282 B1 FR2628282 B1 FR 2628282B1 FR 8802969 A FR8802969 A FR 8802969A FR 8802969 A FR8802969 A FR 8802969A FR 2628282 B1 FR2628282 B1 FR 2628282B1
Authority
FR
France
Prior art keywords
piezoelectric membrane
electroacoustic capsule
electroacoustic
capsule
piezoelectric
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 - Fee Related
Application number
FR8802969A
Other languages
English (en)
Other versions
FR2628282A1 (fr
Inventor
Christian Cognasse
Peter Graham
Bernard Maury
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.)
HORLOGERIE PHOTOGRAPH FSE
Original Assignee
HORLOGERIE PHOTOGRAPH FSE
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 HORLOGERIE PHOTOGRAPH FSE filed Critical HORLOGERIE PHOTOGRAPH FSE
Priority to FR8802969A priority Critical patent/FR2628282B1/fr
Priority to EP89420071A priority patent/EP0331591A1/fr
Priority to JP4843689A priority patent/JPH0214700A/ja
Publication of FR2628282A1 publication Critical patent/FR2628282A1/fr
Application granted granted Critical
Publication of FR2628282B1 publication Critical patent/FR2628282B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
FR8802969A 1988-03-01 1988-03-01 Capsule electroacoustique a membrane piezoelectrique Expired - Fee Related FR2628282B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8802969A FR2628282B1 (fr) 1988-03-01 1988-03-01 Capsule electroacoustique a membrane piezoelectrique
EP89420071A EP0331591A1 (fr) 1988-03-01 1989-02-27 Capsule électroacoustique à membrane piézoélectrique
JP4843689A JPH0214700A (ja) 1988-03-01 1989-02-28 電気音響カプセル及びその形成方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8802969A FR2628282B1 (fr) 1988-03-01 1988-03-01 Capsule electroacoustique a membrane piezoelectrique

Publications (2)

Publication Number Publication Date
FR2628282A1 FR2628282A1 (fr) 1989-09-08
FR2628282B1 true FR2628282B1 (fr) 1990-08-24

Family

ID=9364039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8802969A Expired - Fee Related FR2628282B1 (fr) 1988-03-01 1988-03-01 Capsule electroacoustique a membrane piezoelectrique

Country Status (3)

Country Link
EP (1) EP0331591A1 (fr)
JP (1) JPH0214700A (fr)
FR (1) FR2628282B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9004306A (pt) * 1990-08-30 1992-03-24 S Eletro Acustica Sa Alto falante piezo-eletrico para altas frequencias aperfeicoado
EP0595514B1 (fr) * 1992-10-27 2003-06-25 TDK Corporation Transducteur piézo-électrique
EP3770112A1 (fr) * 2019-07-22 2021-01-27 Infineon Technologies AG Capteur de pression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1334235A (fr) * 1961-09-29 1963-08-02 Siemens Ag Transformateur électro-acoustique
DE2123649A1 (de) * 1971-05-12 1972-11-16 Siemens AG, 1000 Berlin u. 8000 München Akustischer Koppler
DE2429045A1 (de) * 1974-06-18 1976-01-08 Blasius Speidel Koerperschallmikrofon
IT1066823B (it) * 1975-12-30 1985-03-12 Sits Soc It Telecom Siemens Trasduttore elettroacustico particolarmente del tipo a lamina piezoceramica

Also Published As

Publication number Publication date
FR2628282A1 (fr) 1989-09-08
EP0331591A1 (fr) 1989-09-06
JPH0214700A (ja) 1990-01-18

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Legal Events

Date Code Title Description
ST Notification of lapse