GB8921990D0 - Piezoelectric transducer - Google Patents

Piezoelectric transducer

Info

Publication number
GB8921990D0
GB8921990D0 GB898921990A GB8921990A GB8921990D0 GB 8921990 D0 GB8921990 D0 GB 8921990D0 GB 898921990 A GB898921990 A GB 898921990A GB 8921990 A GB8921990 A GB 8921990A GB 8921990 D0 GB8921990 D0 GB 8921990D0
Authority
GB
United Kingdom
Prior art keywords
piezoelectric transducer
piezoelectric
transducer
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
GB898921990A
Other versions
GB2223377B (en
GB2223377A (en
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.)
Dornier GmbH
Original Assignee
Dornier GmbH
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 Dornier GmbH filed Critical Dornier GmbH
Publication of GB8921990D0 publication Critical patent/GB8921990D0/en
Publication of GB2223377A publication Critical patent/GB2223377A/en
Application granted granted Critical
Publication of GB2223377B publication Critical patent/GB2223377B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB8921990A 1988-09-30 1989-09-29 A hydrophone and a piezoelectric hydrophone transducer Expired - Fee Related GB2223377B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3833234A DE3833234C2 (en) 1988-09-30 1988-09-30 Procedure for calibrating or testing a piezoceramic transducer

Publications (3)

Publication Number Publication Date
GB8921990D0 true GB8921990D0 (en) 1989-11-15
GB2223377A GB2223377A (en) 1990-04-04
GB2223377B GB2223377B (en) 1993-06-02

Family

ID=6364076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8921990A Expired - Fee Related GB2223377B (en) 1988-09-30 1989-09-29 A hydrophone and a piezoelectric hydrophone transducer

Country Status (4)

Country Link
EP (1) EP0438623B1 (en)
DE (1) DE3833234C2 (en)
GB (1) GB2223377B (en)
IT (1) IT1232453B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134456A1 (en) * 1991-10-18 1993-04-22 Klaus Brankamp System Prozessa Appts. for measurement of force effect in mechanically loader machine part - involves piezoelectric converter fitted in hole of machine part and set in oscillation, the alterations of which are moulded
JPH09163498A (en) * 1995-10-06 1997-06-20 Murata Mfg Co Ltd Solid sphere type piezoelectric speaker
JP3644259B2 (en) * 1998-03-24 2005-04-27 株式会社村田製作所 Speaker device
CN100432004C (en) * 2007-01-16 2008-11-12 中船重工海声科技有限公司 Method for preparing piezoelectric ceramic ball shell

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1036120B (en) * 1954-12-03 1958-08-07 Electroacustic Gmbh Signaling device designed for use in water
CA930211A (en) * 1970-08-20 1973-07-17 Johnson Matthey And Mallory Limited Piezoelectric transducer and noise making device utilizing same
IL40315A0 (en) * 1971-10-27 1972-11-28 American Optical Corp Apparatus for sonic transcutaneous interrogation of a vessel in vivo
US3800270A (en) * 1972-07-12 1974-03-26 Johnson Service Co Piezoelectric acoustical transducer for transmitting and receiving
FR2278217A1 (en) * 1974-07-10 1976-02-06 Schlumberger Prospection ACOUSTIC TRANSDUCER
GB1554349A (en) * 1976-11-01 1979-10-17 Stanford Res Inst Int Variable focus ultrasonic transducer means
US4168628A (en) * 1977-10-20 1979-09-25 Rca Corporation Pulse-echo ultrasonic-imaging display system having time-varied effective aperture
GB2006434B (en) * 1977-10-20 1982-03-03 Rca Corp Switchable depth of focus pulse-echo ultra-sonic imaging display system
US4546459A (en) * 1982-12-02 1985-10-08 Magnavox Government And Industrial Electronics Company Method and apparatus for a phased array transducer
GB2144308B (en) * 1983-07-27 1986-09-17 Db Instrumentation Limited Electro-acoustic transducer element
JPS62126874A (en) * 1985-11-27 1987-06-09 Taga Denki Kk Ultrasonic vibrator and drive controlling method thereof
US4703214A (en) * 1985-11-27 1987-10-27 Taga Electric Co., Ltd. Ultrasonic vibrator and its drive control method
US4672592A (en) * 1985-12-23 1987-06-09 Westinghouse Electric Corp. Shaded transducer
GB2201318B (en) * 1987-02-12 1990-10-24 Udi Group Ltd Electromechanical transducer

Also Published As

Publication number Publication date
DE3833234A1 (en) 1990-04-12
EP0438623B1 (en) 1995-10-25
DE3833234C2 (en) 1995-03-16
GB2223377B (en) 1993-06-02
GB2223377A (en) 1990-04-04
IT8967838A0 (en) 1989-09-29
EP0438623A1 (en) 1991-07-31
IT1232453B (en) 1992-02-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990929