BR8100994A - Transdutor - Google Patents

Transdutor

Info

Publication number
BR8100994A
BR8100994A BR8100994A BR8100994A BR8100994A BR 8100994 A BR8100994 A BR 8100994A BR 8100994 A BR8100994 A BR 8100994A BR 8100994 A BR8100994 A BR 8100994A BR 8100994 A BR8100994 A BR 8100994A
Authority
BR
Brazil
Prior art keywords
transducer
Prior art date
Application number
BR8100994A
Other languages
English (en)
Inventor
P Murphy
Original Assignee
Lectret Sa
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 Lectret Sa filed Critical Lectret Sa
Publication of BR8100994A publication Critical patent/BR8100994A/pt

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
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
BR8100994A 1980-02-22 1981-02-19 Transdutor BR8100994A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/123,719 US4295010A (en) 1980-02-22 1980-02-22 Plural piezoelectric polymer film acoustic transducer

Publications (1)

Publication Number Publication Date
BR8100994A true BR8100994A (pt) 1981-08-25

Family

ID=22410447

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8100994A BR8100994A (pt) 1980-02-22 1981-02-19 Transdutor

Country Status (10)

Country Link
US (1) US4295010A (pt)
AU (1) AU536991B2 (pt)
BR (1) BR8100994A (pt)
CA (1) CA1165431A (pt)
CH (1) CH625928A5 (pt)
DE (1) DE3102151A1 (pt)
FR (1) FR2476957A1 (pt)
GB (1) GB2070388B (pt)
IT (1) IT1135564B (pt)
ZA (1) ZA811045B (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521380B2 (fr) * 1980-02-22 1987-11-27 Lectret Sa Transducteur acoustique
FR2521381B2 (fr) * 1980-02-22 1987-11-27 Lectret Sa Transducteur acoustique
US4453044A (en) * 1982-02-09 1984-06-05 Lectret S.A. Electro-acoustic transducer with plural piezoelectric film
FR2521382A2 (fr) * 1982-02-09 1983-08-12 Lectret Sa Transducteur acoustique
US5420825A (en) * 1982-08-31 1995-05-30 The United States Of America As Represented By The Secretary Of The Navy Noise control composite
GB8325861D0 (en) * 1983-09-28 1983-11-02 Syrinx Presicion Instr Ltd Force transducer
JPH01501421A (ja) * 1986-11-07 1989-05-18 プレッシー　オーストラリア　プロプライエタリー　リミテッド 低周波の水中音源として動作する複合ソナートランスジューサ
US4833360A (en) * 1987-05-15 1989-05-23 Board Of Regents The University Of Texas System Sonar system using acoustically transparent continuous aperture transducers for multiple beam beamformation
WO1991010334A1 (en) * 1990-01-03 1991-07-11 David Sarnoff Research Center, Inc. Acoustic transducer and method of making the same
US6411013B1 (en) * 1999-12-30 2002-06-25 Honeywell International Inc. Microactuator array with integrally formed package
US6646364B1 (en) * 2000-07-11 2003-11-11 Honeywell International Inc. MEMS actuator with lower power consumption and lower cost simplified fabrication
WO2003001847A1 (en) * 2001-06-21 2003-01-03 Unconventional Concepts, Inc. Directional sensors for head-mounted contact microphones
DE102004056200A1 (de) * 2004-11-22 2006-06-01 Technische Universität Darmstadt Elektroakustischer Wandler
TWI595789B (zh) * 2016-02-16 2017-08-11 智動全球股份有限公司 電聲轉換器
TWI644575B (zh) * 2017-06-23 2018-12-11 英屬開曼群島商智動全球股份有限公司 電聲轉換器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1967130C2 (de) * 1968-01-25 1982-04-01 Pioneer Electronic Corp., Tokyo Mechanisch-elektrisch bzw. elektrisch-mechanischer Wandler
JPS4926890B1 (pt) * 1970-12-04 1974-07-12
JPS4829420A (pt) * 1971-08-20 1973-04-19
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements

Also Published As

Publication number Publication date
IT8119889A0 (it) 1981-02-20
AU536991B2 (en) 1984-05-31
FR2476957A1 (fr) 1981-08-28
DE3102151C2 (pt) 1989-01-26
FR2476957B1 (pt) 1984-04-06
DE3102151A1 (de) 1981-12-17
GB2070388A (en) 1981-09-03
US4295010A (en) 1981-10-13
CH625928A5 (pt) 1981-10-15
AU6741881A (en) 1981-08-27
CA1165431A (en) 1984-04-10
IT1135564B (it) 1986-08-27
GB2070388B (en) 1984-02-08
ZA811045B (en) 1982-04-28

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19960219