GB1428589A - Piezoelectric transducers - Google Patents

Piezoelectric transducers

Info

Publication number
GB1428589A
GB1428589A GB3325274A GB3325274A GB1428589A GB 1428589 A GB1428589 A GB 1428589A GB 3325274 A GB3325274 A GB 3325274A GB 3325274 A GB3325274 A GB 3325274A GB 1428589 A GB1428589 A GB 1428589A
Authority
GB
United Kingdom
Prior art keywords
electrically
bonded
cement
cracks
july
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
Application number
GB3325274A
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.)
Duracell Inc USA
Original Assignee
PR Mallory and Co Inc
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 PR Mallory and Co Inc filed Critical PR Mallory and Co Inc
Publication of GB1428589A publication Critical patent/GB1428589A/en
Expired legal-status Critical Current

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
    • 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)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1428589 Piezo electric transducers P R MALLORY & CO Inc 26 July 1974 [26 July 1973] 33252/74 Heading H4J To bridge electrically any cracks in a piezoelectric element attached by one electrode surface to a resonator, the other electrode surface is bonded to an electrically conductive deformable film. In a high power audio transducer one metallized (Ag) surface 26 of a piezo-ceramic element 14 is bonded electrically and mechanically face to face to a brass disc resonator 24 by conductive epoxy cement 28, the metal (Cu) particles 32 of which bridge the thickness of the cement layer. On the opposite metallized (Ag) surface 27 a deformable film 16, e.g. 0À001 inch polyester 36 made conductive by aluminizing 17, is bonded by similar cement 28 so that any cracks 42 which develop are bridged electrically, all parts of surface 27 being connected to soldered lead 20.
GB3325274A 1973-07-26 1974-07-26 Piezoelectric transducers Expired GB1428589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38293173A 1973-07-26 1973-07-26

Publications (1)

Publication Number Publication Date
GB1428589A true GB1428589A (en) 1976-03-17

Family

ID=23511011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3325274A Expired GB1428589A (en) 1973-07-26 1974-07-26 Piezoelectric transducers

Country Status (7)

Country Link
JP (1) JPS5829680B2 (en)
BR (1) BR7405611D0 (en)
CA (1) CA1006969A (en)
DE (1) DE2435910C2 (en)
FR (1) FR2239071B3 (en)
GB (1) GB1428589A (en)
IT (1) IT1016669B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195284A (en) * 1976-08-11 1980-03-25 Ward & Goldstone Limited Sound generator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4228379A (en) * 1978-08-28 1980-10-14 American District Telegraph Company Diaphragm type piezoelectric electroacoustic transducer
DE4015253A1 (en) * 1990-05-12 1991-11-14 Hoechst Ceram Tec Ag PIEZOELECTRIC TONER AND METHOD FOR THE PRODUCTION THEREOF
JP2915716B2 (en) * 1992-08-26 1999-07-05 ティーディーケイ株式会社 Electronic components
US6404107B1 (en) 1994-01-27 2002-06-11 Active Control Experts, Inc. Packaged strain actuator
US6791098B2 (en) 1994-01-27 2004-09-14 Cymer, Inc. Multi-input, multi-output motion control for lithography system
US6420819B1 (en) 1994-01-27 2002-07-16 Active Control Experts, Inc. Packaged strain actuator
US6959484B1 (en) 1994-01-27 2005-11-01 Cymer, Inc. System for vibration control
EP1813387B1 (en) * 2004-11-19 2013-07-17 Toyoda Van Moppes Ltd. Grinding wheel
RU2768297C1 (en) * 2021-07-06 2022-03-23 АКЦИОНЕРНОЕ ОБЩЕСТВО "КОНЦЕРН "МОРСКОЕ ПОДВОДНОЕ ОРУЖИЕ - ГИДРОПРИБОР" (АО "Концерн "МПО-Гидроприбор") Composite electroacoustic transducer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4222078Y1 (en) * 1965-01-14 1967-12-16
US3440648A (en) * 1968-05-09 1969-04-22 Mallory & Co Inc P R Integrated-circuit amplifier and oscillator
US3588552A (en) * 1969-09-23 1971-06-28 Motorola Inc Prestressed piezoelectric audio transducer
CA930211A (en) * 1970-08-20 1973-07-17 Johnson Matthey And Mallory Limited Piezoelectric transducer and noise making device utilizing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195284A (en) * 1976-08-11 1980-03-25 Ward & Goldstone Limited Sound generator

Also Published As

Publication number Publication date
FR2239071B3 (en) 1977-05-20
CA1006969A (en) 1977-03-15
IT1016669B (en) 1977-06-20
BR7405611D0 (en) 1975-05-13
JPS5044789A (en) 1975-04-22
DE2435910C2 (en) 1985-01-24
FR2239071A1 (en) 1975-02-21
DE2435910A1 (en) 1975-02-27
JPS5829680B2 (en) 1983-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee