EP1819191A8 - Laminated piezoelectric transducer - Google Patents

Laminated piezoelectric transducer Download PDF

Info

Publication number
EP1819191A8
EP1819191A8 EP07109446A EP07109446A EP1819191A8 EP 1819191 A8 EP1819191 A8 EP 1819191A8 EP 07109446 A EP07109446 A EP 07109446A EP 07109446 A EP07109446 A EP 07109446A EP 1819191 A8 EP1819191 A8 EP 1819191A8
Authority
EP
European Patent Office
Prior art keywords
acoustic
chamber
housing element
acoustic chamber
therethrough
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.)
Granted
Application number
EP07109446A
Other languages
German (de)
French (fr)
Other versions
EP1819191A2 (en
EP1819191B1 (en
EP1819191A3 (en
Inventor
Jerry Peck
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.)
Undersea Systems International Inc dba Ocean Tec
Original Assignee
UNDERSEA SYSTEMS INTERNATIONAL
Undersea Systems International Inc dba Ocean Technology Systems
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 UNDERSEA SYSTEMS INTERNATIONAL, Undersea Systems International Inc dba Ocean Technology Systems filed Critical UNDERSEA SYSTEMS INTERNATIONAL
Priority to DE602005023642T priority Critical patent/DE602005023642D1/en
Publication of EP1819191A2 publication Critical patent/EP1819191A2/en
Publication of EP1819191A3 publication Critical patent/EP1819191A3/en
Publication of EP1819191A8 publication Critical patent/EP1819191A8/en
Application granted granted Critical
Publication of EP1819191B1 publication Critical patent/EP1819191B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

An underwater acoustic transducer (10) comprising a laminated waterproof and sealed active acoustic element (14) for transducing sound and electrical signals; a front and rear housing element (24) disposed on each side of the active acoustic element (14) to define a corresponding front and rear acoustic chamber on each side of the active acoustic element (14), each housing element (24) defining a corresponding port (30) therethrough of a predetermined diameter and thickness to provide tuning of the corresponding acoustic chamber and to provide free flooding acoustic chambers; and a rear cover (38) disposed on the rear housing element (38) and defining a corresponding port (40) therethrough of a predetermined diameter and thickness to provide further tuning of the corresponding rear acoustic chamber while maintaining the free flooding characteristic of the rear acoustic chamber.
EP07109446A 2005-12-14 2005-12-14 Laminated piezoelectric transducer Not-in-force EP1819191B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE602005023642T DE602005023642D1 (en) 2005-12-14 2005-12-14 Laminated piezoelectric transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05027342A EP1799009B1 (en) 2005-12-14 2005-12-14 Laminated piezoelectric transducer and method of manufacturing the same

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05027342.4 Division 2005-12-14
EP05027342A Division EP1799009B1 (en) 2005-12-14 2005-12-14 Laminated piezoelectric transducer and method of manufacturing the same

Publications (4)

Publication Number Publication Date
EP1819191A2 EP1819191A2 (en) 2007-08-15
EP1819191A3 EP1819191A3 (en) 2007-08-22
EP1819191A8 true EP1819191A8 (en) 2007-10-24
EP1819191B1 EP1819191B1 (en) 2010-09-15

Family

ID=36406004

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05027342A Not-in-force EP1799009B1 (en) 2005-12-14 2005-12-14 Laminated piezoelectric transducer and method of manufacturing the same
EP07109446A Not-in-force EP1819191B1 (en) 2005-12-14 2005-12-14 Laminated piezoelectric transducer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05027342A Not-in-force EP1799009B1 (en) 2005-12-14 2005-12-14 Laminated piezoelectric transducer and method of manufacturing the same

Country Status (4)

Country Link
EP (2) EP1799009B1 (en)
AT (2) ATE481824T1 (en)
DE (2) DE602005013257D1 (en)
ES (2) ES2349569T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008009284B4 (en) 2008-02-15 2009-10-22 Siemens Audiologische Technik Gmbh Water resistant hearing aid
CN117213616B (en) * 2023-11-09 2024-01-26 中北大学 Piezoelectric hydrophone unit with stress release structure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909529A (en) * 1971-12-27 1975-09-30 Us Navy Immersible diver{3 s microphone
GB1546521A (en) * 1976-07-30 1979-05-23 France Armed Forces Electroacoustic transducer
US4454927A (en) * 1981-12-21 1984-06-19 Atlas Sound Division Of American Trading And Production Corp. Reentrant cone driven loudspeaker
GB8727072D0 (en) * 1987-11-19 1987-12-23 British Telecomm Moisture barrier assembly
US5117403A (en) * 1991-05-31 1992-05-26 Adolf Eberl Above and below water sound transducer
WO1995021512A1 (en) * 1994-02-03 1995-08-10 Knowles Electronics, Inc. Water submersible microphone
JP3270616B2 (en) * 1994-02-25 2002-04-02 呉羽化学工業株式会社 Wave receiving piezoelectric element
US5812496A (en) * 1997-10-20 1998-09-22 Peck/Pelissier Partnership Water resistant microphone
US6545948B1 (en) * 1999-12-06 2003-04-08 Gejing Jiang Submersible loudspeaker
US7006651B2 (en) * 2001-02-26 2006-02-28 Uetax Corporation Speaker
US6693849B1 (en) * 2002-10-03 2004-02-17 Adolf Eberl Piezoelectric audio transducer
WO2005112503A1 (en) * 2004-05-07 2005-11-24 Diver Entertainment Sytsems, Inc. System for providing wireless waterproof audio

Also Published As

Publication number Publication date
EP1799009B1 (en) 2009-03-11
ES2349569T3 (en) 2011-01-05
ATE481824T1 (en) 2010-10-15
EP1819191A2 (en) 2007-08-15
DE602005023642D1 (en) 2010-10-28
ATE425640T1 (en) 2009-03-15
EP1819191B1 (en) 2010-09-15
DE602005013257D1 (en) 2009-04-23
EP1799009A1 (en) 2007-06-20
ES2320559T3 (en) 2009-05-25
EP1819191A3 (en) 2007-08-22

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