GB8314388D0 - Underwater acoustic devices - Google Patents

Underwater acoustic devices

Info

Publication number
GB8314388D0
GB8314388D0 GB838314388A GB8314388A GB8314388D0 GB 8314388 D0 GB8314388 D0 GB 8314388D0 GB 838314388 A GB838314388 A GB 838314388A GB 8314388 A GB8314388 A GB 8314388A GB 8314388 D0 GB8314388 D0 GB 8314388D0
Authority
GB
United Kingdom
Prior art keywords
underwater acoustic
acoustic devices
devices
underwater
acoustic
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.)
Withdrawn
Application number
GB838314388A
Other versions
GB2120902A (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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB08314388A priority Critical patent/GB2120902A/en
Publication of GB8314388D0 publication Critical patent/GB8314388D0/en
Publication of GB2120902A publication Critical patent/GB2120902A/en
Withdrawn legal-status Critical Current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
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • 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
    • B06B1/0688—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 with foil-type piezoelectric elements, e.g. PVDF

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
GB08314388A 1982-05-27 1983-05-24 Underwater acoustic devices Withdrawn GB2120902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08314388A GB2120902A (en) 1982-05-27 1983-05-24 Underwater acoustic devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8215527 1982-05-27
GB08314388A GB2120902A (en) 1982-05-27 1983-05-24 Underwater acoustic devices

Publications (2)

Publication Number Publication Date
GB8314388D0 true GB8314388D0 (en) 1983-06-29
GB2120902A GB2120902A (en) 1983-12-07

Family

ID=26282969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08314388A Withdrawn GB2120902A (en) 1982-05-27 1983-05-24 Underwater acoustic devices

Country Status (1)

Country Link
GB (1) GB2120902A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156521B (en) * 1984-03-27 1987-09-09 Nat Res Dev Finding the direction of a sound
US4638207A (en) * 1986-03-19 1987-01-20 Pennwalt Corporation Piezoelectric polymeric film balloon speaker
US4843275A (en) * 1988-01-19 1989-06-27 Pennwalt Corporation Air buoyant piezoelectric polymeric film microphone
JPH09163498A (en) * 1995-10-06 1997-06-20 Murata Mfg Co Ltd Solid sphere type piezoelectric speaker
CN102097093B (en) * 2010-11-26 2012-11-21 中国科学院声学研究所 Deepwater wideband spherical transducer
WO2018101864A1 (en) * 2016-11-30 2018-06-07 Saab Ab Sonar device with holder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939970A (en) * 1954-12-03 1960-06-07 Gulton Ind Inc Spherical transducer
GB2087687B (en) * 1980-10-21 1985-01-03 Secr Defence Underwater sound transducer

Also Published As

Publication number Publication date
GB2120902A (en) 1983-12-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)