WO2000054549A3 - Vibration exciters for driving bending wave panels - Google Patents

Vibration exciters for driving bending wave panels Download PDF

Info

Publication number
WO2000054549A3
WO2000054549A3 PCT/GB2000/000802 GB0000802W WO0054549A3 WO 2000054549 A3 WO2000054549 A3 WO 2000054549A3 GB 0000802 W GB0000802 W GB 0000802W WO 0054549 A3 WO0054549 A3 WO 0054549A3
Authority
WO
WIPO (PCT)
Prior art keywords
bending wave
vibration exciters
wave panels
driving bending
panels
Prior art date
Application number
PCT/GB2000/000802
Other languages
French (fr)
Other versions
WO2000054549A2 (en
Inventor
Henry Azima
Neil Harris
Original Assignee
New Transducers Ltd
Henry Azima
Neil Harris
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, Neil Harris filed Critical New Transducers Ltd
Priority to EP00907815A priority Critical patent/EP1159854A2/en
Priority to JP2000604647A priority patent/JP2002539699A/en
Priority to AU29282/00A priority patent/AU2928200A/en
Publication of WO2000054549A2 publication Critical patent/WO2000054549A2/en
Publication of WO2000054549A3 publication Critical patent/WO2000054549A3/en

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
    • H04R7/02—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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Abstract

A vibration exciter (1) for bending wave panels (3) is described. The exciter includes an electrostrictive bender element (13) including at least one layer of electrostrictive material such as lead magnesium niobate titanate (PMNT).
PCT/GB2000/000802 1999-03-10 2000-03-09 Vibration exciters for driving bending wave panels WO2000054549A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00907815A EP1159854A2 (en) 1999-03-10 2000-03-09 Vibration exciters for driving bending wave panels
JP2000604647A JP2002539699A (en) 1999-03-10 2000-03-09 Vibration exciter
AU29282/00A AU2928200A (en) 1999-03-10 2000-03-09 Vibration exciters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9905373.8 1999-03-10
GBGB9905373.8A GB9905373D0 (en) 1999-03-10 1999-03-10 Inertial vibration exciters

Publications (2)

Publication Number Publication Date
WO2000054549A2 WO2000054549A2 (en) 2000-09-14
WO2000054549A3 true WO2000054549A3 (en) 2000-12-14

Family

ID=10849252

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/000802 WO2000054549A2 (en) 1999-03-10 2000-03-09 Vibration exciters for driving bending wave panels

Country Status (6)

Country Link
EP (1) EP1159854A2 (en)
JP (1) JP2002539699A (en)
AU (1) AU2928200A (en)
GB (1) GB9905373D0 (en)
TW (1) TW469748B (en)
WO (1) WO2000054549A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0022913D0 (en) * 2000-09-19 2000-11-01 New Transducers Ltd Loudspeaker
FR3110162B1 (en) * 2020-05-13 2022-05-27 Saint Gobain Glazing with audio exciter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708702A (en) * 1970-12-02 1973-01-02 Siemens Ag Electroacoustic transducer
US4471258A (en) * 1980-11-07 1984-09-11 Hitachi, Ltd. Piezoelectric ceramic transducer
US4488010A (en) * 1981-09-28 1984-12-11 Siegfried Klein Loudspeaker
US5229979A (en) * 1990-12-14 1993-07-20 Rutgers, The State University Of New Jersey Electrostrictive driving device, process for sonic wave projection and polymer materials for use therein
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO1998035529A2 (en) * 1997-02-07 1998-08-13 Sri International Elastomeric dielectric polymer film sonic actuator
WO1998052381A2 (en) * 1997-05-15 1998-11-19 New Transducers Limited Panel-form loudspeakers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708702A (en) * 1970-12-02 1973-01-02 Siemens Ag Electroacoustic transducer
US4471258A (en) * 1980-11-07 1984-09-11 Hitachi, Ltd. Piezoelectric ceramic transducer
US4488010A (en) * 1981-09-28 1984-12-11 Siegfried Klein Loudspeaker
US5229979A (en) * 1990-12-14 1993-07-20 Rutgers, The State University Of New Jersey Electrostrictive driving device, process for sonic wave projection and polymer materials for use therein
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO1998035529A2 (en) * 1997-02-07 1998-08-13 Sri International Elastomeric dielectric polymer film sonic actuator
WO1998052381A2 (en) * 1997-05-15 1998-11-19 New Transducers Limited Panel-form loudspeakers

Also Published As

Publication number Publication date
EP1159854A2 (en) 2001-12-05
WO2000054549A2 (en) 2000-09-14
TW469748B (en) 2001-12-21
JP2002539699A (en) 2002-11-19
AU2928200A (en) 2000-09-28
GB9905373D0 (en) 1999-05-05

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