GB8415062D0 - Electro-acoustic transducers - Google Patents

Electro-acoustic transducers

Info

Publication number
GB8415062D0
GB8415062D0 GB848415062A GB8415062A GB8415062D0 GB 8415062 D0 GB8415062 D0 GB 8415062D0 GB 848415062 A GB848415062 A GB 848415062A GB 8415062 A GB8415062 A GB 8415062A GB 8415062 D0 GB8415062 D0 GB 8415062D0
Authority
GB
United Kingdom
Prior art keywords
electro
acoustic transducers
transducers
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.)
Granted
Application number
GB848415062A
Other versions
GB2160388B (en
GB2160388A (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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB08415062A priority Critical patent/GB2160388B/en
Publication of GB8415062D0 publication Critical patent/GB8415062D0/en
Publication of GB2160388A publication Critical patent/GB2160388A/en
Application granted granted Critical
Publication of GB2160388B publication Critical patent/GB2160388B/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
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer

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)
GB08415062A 1984-06-13 1984-06-13 Electroc-accoustic transducers Expired GB2160388B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08415062A GB2160388B (en) 1984-06-13 1984-06-13 Electroc-accoustic transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08415062A GB2160388B (en) 1984-06-13 1984-06-13 Electroc-accoustic transducers

Publications (3)

Publication Number Publication Date
GB8415062D0 true GB8415062D0 (en) 1984-07-18
GB2160388A GB2160388A (en) 1985-12-18
GB2160388B GB2160388B (en) 1988-02-03

Family

ID=10562368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08415062A Expired GB2160388B (en) 1984-06-13 1984-06-13 Electroc-accoustic transducers

Country Status (1)

Country Link
GB (1) GB2160388B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60103798A (en) * 1983-11-09 1985-06-08 Takeshi Yoshii Displacement-type bone conduction microphone
US4696045A (en) * 1985-06-04 1987-09-22 Acr Electronics Ear microphone
US5811680A (en) * 1993-06-13 1998-09-22 Technion Research & Development Foundation Ltd. Method and apparatus for testing the quality of fruit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376302A (en) * 1978-04-13 1983-03-08 The United States Of America As Represented By The Secretary Of The Navy Piezoelectric polymer hydrophone

Also Published As

Publication number Publication date
GB2160388B (en) 1988-02-03
GB2160388A (en) 1985-12-18

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950613