WO2000067525A3 - Excitateur de vibrations - Google Patents

Excitateur de vibrations Download PDF

Info

Publication number
WO2000067525A3
WO2000067525A3 PCT/GB2000/001485 GB0001485W WO0067525A3 WO 2000067525 A3 WO2000067525 A3 WO 2000067525A3 GB 0001485 W GB0001485 W GB 0001485W WO 0067525 A3 WO0067525 A3 WO 0067525A3
Authority
WO
WIPO (PCT)
Prior art keywords
piezoelectric vibration
vibration exciter
plate
piezoelectric device
vibrate
Prior art date
Application number
PCT/GB2000/001485
Other languages
English (en)
Other versions
WO2000067525A2 (fr
Inventor
Henry Azima
Original Assignee
New Transducers Ltd
Henry Azima
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 New Transducers Ltd, Henry Azima filed Critical New Transducers Ltd
Priority to AU45824/00A priority Critical patent/AU4582400A/en
Priority to DE60005329T priority patent/DE60005329D1/de
Priority to JP2000614776A priority patent/JP2002543727A/ja
Priority to EP00927419A priority patent/EP1172019B1/fr
Publication of WO2000067525A2 publication Critical patent/WO2000067525A2/fr
Publication of WO2000067525A3 publication Critical patent/WO2000067525A3/fr

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • 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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • 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
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

La présente invention concerne un dispositif piézo-électrique courbe (3), fixé à une plaque (11), et destiné à faire vibrer cette plaque. Une masselotte est appliquée à au moins une extrémité libre (14) du dispositif piézo-électrique afin d'en augmenter la puissance de sortie.
PCT/GB2000/001485 1999-04-29 2000-04-28 Excitateur de vibrations WO2000067525A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU45824/00A AU4582400A (en) 1999-04-29 2000-04-28 Vibration exciter
DE60005329T DE60005329D1 (de) 1999-04-29 2000-04-28 Piezoelektrischer schwingungserreger
JP2000614776A JP2002543727A (ja) 1999-04-29 2000-04-28 振動励振器
EP00927419A EP1172019B1 (fr) 1999-04-29 2000-04-28 Excitateur de vibrations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9910216.2A GB9910216D0 (en) 1999-04-29 1999-04-29 Vibration exciter
GB9910216.2 1999-04-29

Publications (2)

Publication Number Publication Date
WO2000067525A2 WO2000067525A2 (fr) 2000-11-09
WO2000067525A3 true WO2000067525A3 (fr) 2001-03-08

Family

ID=10852721

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001485 WO2000067525A2 (fr) 1999-04-29 2000-04-28 Excitateur de vibrations

Country Status (8)

Country Link
EP (1) EP1172019B1 (fr)
JP (1) JP2002543727A (fr)
CN (1) CN1343438A (fr)
AU (1) AU4582400A (fr)
DE (1) DE60005329D1 (fr)
GB (1) GB9910216D0 (fr)
TW (1) TW472497B (fr)
WO (1) WO2000067525A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2009001769A1 (ja) * 2007-06-27 2010-08-26 アルプス電気株式会社 電歪アクチュエータモジュール
DE102021213003A1 (de) 2021-11-18 2023-05-25 Continental Automotive Technologies GmbH Wandler zum Erzeugen von Schallwellen und Display

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819099A (ja) * 1981-07-27 1983-02-03 Murata Mfg Co Ltd 圧電型スピ−カ
US4654554A (en) * 1984-09-05 1987-03-31 Sawafuji Dynameca Co., Ltd. Piezoelectric vibrating elements and piezoelectric electroacoustic transducers
US5309519A (en) * 1988-10-07 1994-05-03 The Whitaker Corporation Electroacoustic novelties
WO1997009842A2 (fr) * 1995-09-02 1997-03-13 New Transducers Limited Dispositif acoustique
EP0871345A1 (fr) * 1997-04-03 1998-10-14 Sonitron, naamloze Vennootschap Elément pour la restitution et/ou pour la prise de son

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819099A (ja) * 1981-07-27 1983-02-03 Murata Mfg Co Ltd 圧電型スピ−カ
US4654554A (en) * 1984-09-05 1987-03-31 Sawafuji Dynameca Co., Ltd. Piezoelectric vibrating elements and piezoelectric electroacoustic transducers
US5309519A (en) * 1988-10-07 1994-05-03 The Whitaker Corporation Electroacoustic novelties
WO1997009842A2 (fr) * 1995-09-02 1997-03-13 New Transducers Limited Dispositif acoustique
EP0871345A1 (fr) * 1997-04-03 1998-10-14 Sonitron, naamloze Vennootschap Elément pour la restitution et/ou pour la prise de son

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 094 (E - 171) 20 April 1983 (1983-04-20) *

Also Published As

Publication number Publication date
WO2000067525A2 (fr) 2000-11-09
AU4582400A (en) 2000-11-17
GB9910216D0 (en) 1999-06-30
JP2002543727A (ja) 2002-12-17
TW472497B (en) 2002-01-11
EP1172019A2 (fr) 2002-01-16
CN1343438A (zh) 2002-04-03
EP1172019B1 (fr) 2003-09-17
DE60005329D1 (de) 2003-10-23

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