DE60004045T2 - Biegewellen-akustische vorrichtung - Google Patents

Biegewellen-akustische vorrichtung Download PDF

Info

Publication number
DE60004045T2
DE60004045T2 DE60004045T DE60004045T DE60004045T2 DE 60004045 T2 DE60004045 T2 DE 60004045T2 DE 60004045 T DE60004045 T DE 60004045T DE 60004045 T DE60004045 T DE 60004045T DE 60004045 T2 DE60004045 T2 DE 60004045T2
Authority
DE
Germany
Prior art keywords
panel
axis
along
acoustic device
modal
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 - Lifetime
Application number
DE60004045T
Other languages
German (de)
English (en)
Other versions
DE60004045D1 (de
Inventor
Graham Woodbridge BANK
Neil Whittlesford HARRIS
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.)
NVF Tech Ltd
Original Assignee
New Transducers Ltd
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 filed Critical New Transducers Ltd
Application granted granted Critical
Publication of DE60004045D1 publication Critical patent/DE60004045D1/de
Publication of DE60004045T2 publication Critical patent/DE60004045T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • 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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE60004045T 1999-06-10 2000-06-07 Biegewellen-akustische vorrichtung Expired - Lifetime DE60004045T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9913465 1999-06-10
GBGB9913465.2A GB9913465D0 (en) 1999-06-10 1999-06-10 Acoustic device
PCT/GB2000/002054 WO2000078090A2 (fr) 1999-06-10 2000-06-07 Dispositif acoustique

Publications (2)

Publication Number Publication Date
DE60004045D1 DE60004045D1 (de) 2003-08-28
DE60004045T2 true DE60004045T2 (de) 2004-05-06

Family

ID=10855054

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60004045T Expired - Lifetime DE60004045T2 (de) 1999-06-10 2000-06-07 Biegewellen-akustische vorrichtung

Country Status (10)

Country Link
EP (1) EP1186203B1 (fr)
JP (1) JP2003501982A (fr)
CN (1) CN1261002C (fr)
AU (1) AU5089600A (fr)
DE (1) DE60004045T2 (fr)
GB (1) GB9913465D0 (fr)
HK (1) HK1040875B (fr)
NZ (1) NZ515328A (fr)
TW (1) TW479434B (fr)
WO (1) WO2000078090A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
WO2002078391A2 (fr) * 2001-03-23 2002-10-03 New Transducers Limited Element acoustique rayonnant a ondes de flexion
GB0123932D0 (en) * 2001-10-05 2001-11-28 New Transducers Ltd Loudspeakers
GB0317331D0 (en) 2003-07-24 2003-08-27 New Transducers Ltd Acoustic device
JP5545083B2 (ja) * 2010-07-07 2014-07-09 ソニー株式会社 スピーカ装置
US10477320B2 (en) 2014-09-19 2019-11-12 Corning Incorporated Thin panel loudspeakers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132593B (de) * 1965-04-05 1962-07-05 Bolt Beranek & Newman Akustisch wirksame Platte, insbesondere zur Ankopplung an einen elektroakustischen Wandler
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій
TW450011B (en) * 1998-02-10 2001-08-11 New Transducers Ltd Acoustic devices

Also Published As

Publication number Publication date
EP1186203A2 (fr) 2002-03-13
DE60004045D1 (de) 2003-08-28
CN1261002C (zh) 2006-06-21
WO2000078090A2 (fr) 2000-12-21
JP2003501982A (ja) 2003-01-14
HK1040875A1 (en) 2002-06-21
CN1356015A (zh) 2002-06-26
WO2000078090A3 (fr) 2001-07-12
HK1040875B (en) 2003-10-17
TW479434B (en) 2002-03-11
EP1186203B1 (fr) 2003-07-23
GB9913465D0 (en) 1999-08-11
NZ515328A (en) 2002-04-26
AU5089600A (en) 2001-01-02

Similar Documents

Publication Publication Date Title
DE19857024B4 (de) Lautsprecher
DE1132593B (de) Akustisch wirksame Platte, insbesondere zur Ankopplung an einen elektroakustischen Wandler
DE2318027B2 (de) Elektroakustischer Wandler mit einem piezoelektrischen Biegeschwinger Motorola, Ine, Franklin Park, 111. (V.St A.)
DE19757097B4 (de) Schallwiedergabeanordnung
EP3610478B1 (fr) Actionneur de bruit solidien pour véhicule automobile et véhicule automobile
DE212019000455U1 (de) Schallisolierendes Paneel
EP0308899A2 (fr) Transducteur à ultrasons avec une caractéristique d'émission et réception astigmatique
DE60004045T2 (de) Biegewellen-akustische vorrichtung
DE3732412A1 (de) Ultraschallwandler mit astigmatischer sende-/empfangscharakteristik
DE69629307T2 (de) Verfahren zur dämpfung von schwingungen und der von einem material abgestrahlten druckwelle
EP1078551B1 (fr) Haut-parleur a panneaux
WO1999060817A1 (fr) Dispositif pour exciter de maniere dynamique des haut-parleurs a panneaux
DE69610177T2 (de) Lärmschutzwand
WO2012083319A2 (fr) Élément d'insonorisation
DE19516819A1 (de) Schalldämpfungsvorrichtung
EP3246479B1 (fr) Unité d'absorption de sons
DE102017210729A1 (de) Anordnung zur Beeinflussung von Luftschallereignissen
DE2112516B1 (de) Richtlautsprecher
EP1283516A2 (fr) Transducteur à ultrasons avec une membrane entraínable et avec un vibreur piézoélectrique disposé sur cette membrane
DE1107711B (de) Rechteckige, akustische Membran
DE19833213C2 (de) Ultraschall-Sendeanordnung
DE10327633B4 (de) Vorrichtung zur Absorption von Schallenergie aus Schallwellen in flüssigen oder in gasförmigen Medien
DE4113628C2 (fr)
EP1169143B1 (fr) Transducteur acoustique a impulsions comprenant un bloc elementaire en materiau piezoceramique
DE2539087B2 (de) Schallabsorbierende Raumauskleidung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition