EP0331591A1 - Elektroakustischer Kapsel mit Piezoelektrischer Membran - Google Patents

Elektroakustischer Kapsel mit Piezoelektrischer Membran Download PDF

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Publication number
EP0331591A1
EP0331591A1 EP89420071A EP89420071A EP0331591A1 EP 0331591 A1 EP0331591 A1 EP 0331591A1 EP 89420071 A EP89420071 A EP 89420071A EP 89420071 A EP89420071 A EP 89420071A EP 0331591 A1 EP0331591 A1 EP 0331591A1
Authority
EP
European Patent Office
Prior art keywords
cover
capsule
seal
periphery
capsule according
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.)
Ceased
Application number
EP89420071A
Other languages
English (en)
French (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 Photographique Francaise SA
Original Assignee
Horlogerie Photographique Francaise 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 Horlogerie Photographique Francaise SA filed Critical Horlogerie Photographique Francaise SA
Publication of EP0331591A1 publication Critical patent/EP0331591A1/de
Ceased legal-status Critical Current

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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
EP89420071A 1988-03-01 1989-02-27 Elektroakustischer Kapsel mit Piezoelektrischer Membran Ceased EP0331591A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8802969 1988-03-01
FR8802969A FR2628282B1 (fr) 1988-03-01 1988-03-01 Capsule electroacoustique a membrane piezoelectrique

Publications (1)

Publication Number Publication Date
EP0331591A1 true EP0331591A1 (de) 1989-09-06

Family

ID=9364039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420071A Ceased EP0331591A1 (de) 1988-03-01 1989-02-27 Elektroakustischer Kapsel mit Piezoelektrischer Membran

Country Status (3)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475208A2 (de) * 1990-08-30 1992-03-18 Leson S.A. Elektroakustischer piezoelektrischer Wandler
EP0595514A2 (de) * 1992-10-27 1994-05-04 TDK Corporation Piezoelektrischer Wandler
CN112291690A (zh) * 2019-07-22 2021-01-29 英飞凌科技股份有限公司 压力传感器

Citations (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
FR2275182A1 (fr) * 1974-06-18 1976-01-16 Speidel Blasius Microphone a contact pour mesurer la pression du sang
FR2337480A1 (fr) * 1975-12-30 1977-07-29 Sits Soc It Telecom Siemens Transducteur electro-acoustique, en particulier du type a plaque piezoceramique

Patent Citations (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
FR2275182A1 (fr) * 1974-06-18 1976-01-16 Speidel Blasius Microphone a contact pour mesurer la pression du sang
FR2337480A1 (fr) * 1975-12-30 1977-07-29 Sits Soc It Telecom Siemens Transducteur electro-acoustique, en particulier du type a plaque piezoceramique

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475208A2 (de) * 1990-08-30 1992-03-18 Leson S.A. Elektroakustischer piezoelektrischer Wandler
EP0475208A3 (en) * 1990-08-30 1992-10-14 S. Eletro-Acustica S.A. Electroacoustic piezoelectric transducer
US5245669A (en) * 1990-08-30 1993-09-14 Leson Laboratorio De Engenharia Sonica S.A. Electroacoustic transducer
EP0595514A2 (de) * 1992-10-27 1994-05-04 TDK Corporation Piezoelektrischer Wandler
EP0595514A3 (en) * 1992-10-27 1996-10-09 Tdk Corp Piezoelectric transducer
CN112291690A (zh) * 2019-07-22 2021-01-29 英飞凌科技股份有限公司 压力传感器
CN112291690B (zh) * 2019-07-22 2024-04-05 英飞凌科技股份有限公司 压力传感器

Also Published As

Publication number Publication date
FR2628282B1 (fr) 1990-08-24
JPH0214700A (ja) 1990-01-18
FR2628282A1 (fr) 1989-09-08

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