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EP0582557A3 - Piezomembrane constrained in the center and its employment to provide an acoustic howler. - Google Patents

Piezomembrane constrained in the center and its employment to provide an acoustic howler. Download PDF

Info

Publication number
EP0582557A3
EP0582557A3 EP93830348A EP93830348A EP0582557A3 EP 0582557 A3 EP0582557 A3 EP 0582557A3 EP 93830348 A EP93830348 A EP 93830348A EP 93830348 A EP93830348 A EP 93830348A EP 0582557 A3 EP0582557 A3 EP 0582557A3
Authority
EP
European Patent Office
Prior art keywords
piezomembrane
howler
employment
constrained
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.)
Withdrawn
Application number
EP93830348A
Other languages
German (de)
French (fr)
Other versions
EP0582557A2 (en
Inventor
Massimo Brachi
Nicola Lamberti
Massimo Pappalardo
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.)
IMAPO Srl
Original Assignee
IMAPO Srl
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 IMAPO Srl filed Critical IMAPO Srl
Publication of EP0582557A2 publication Critical patent/EP0582557A2/en
Publication of EP0582557A3 publication Critical patent/EP0582557A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
EP93830348A 1992-08-05 1993-08-03 Piezomembrane constrained in the center and its employment to provide an acoustic howler. Withdrawn EP0582557A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM920591 1992-08-05
ITRM920591A IT1262971B (en) 1992-08-05 1992-08-05 PIEZOMEMBRANA BOUND AT THE CENTER AND ITS USE FOR THE REALIZATION OF Acoustic Horn.

Publications (2)

Publication Number Publication Date
EP0582557A2 EP0582557A2 (en) 1994-02-09
EP0582557A3 true EP0582557A3 (en) 1995-01-18

Family

ID=11401146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93830348A Withdrawn EP0582557A3 (en) 1992-08-05 1993-08-03 Piezomembrane constrained in the center and its employment to provide an acoustic howler.

Country Status (2)

Country Link
EP (1) EP0582557A3 (en)
IT (1) IT1262971B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3721798B2 (en) * 1998-01-13 2005-11-30 株式会社村田製作所 Ultrasonic sensor
ITRM20060238A1 (en) * 2006-05-03 2007-11-04 Esaote Spa ULTRACUSTIC MULTIPLE CAPACITOR TRANSDUCER
EP3166735B1 (en) 2014-07-11 2023-02-15 Microtech Medical Technologies Ltd. Multi-cell transducer
JP7105116B2 (en) * 2018-06-22 2022-07-22 株式会社トーキン ultrasonic sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029067A1 (en) * 1980-07-31 1982-02-11 Bolta-Werke Gmbh, 8561 Diepersdorf Sound generator with piezo-element for alarm unit - has central pin suspension of plate with piezo crystal and edge vibrating at different frequency
EP0053947A1 (en) * 1980-12-10 1982-06-16 Matsushita Electric Industrial Co., Ltd. Ultrasonic transducer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3029067A1 (en) * 1980-07-31 1982-02-11 Bolta-Werke Gmbh, 8561 Diepersdorf Sound generator with piezo-element for alarm unit - has central pin suspension of plate with piezo crystal and edge vibrating at different frequency
EP0053947A1 (en) * 1980-12-10 1982-06-16 Matsushita Electric Industrial Co., Ltd. Ultrasonic transducer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
H.NISHIYAMA & K.KAGA: "Piezoelectric sound components used in a broad range of applications", JEE JOURNAL OF ELECTRONIC ENGINEERING, vol. 25, no. 260, August 1988 (1988-08-01), TOKYO JP, pages 62 - 66 *

Also Published As

Publication number Publication date
EP0582557A2 (en) 1994-02-09
ITRM920591A1 (en) 1994-02-05
IT1262971B (en) 1996-07-23
ITRM920591A0 (en) 1992-08-05

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