JPS56114500A - Ultrasonic transducer - Google Patents

Ultrasonic transducer

Info

Publication number
JPS56114500A
JPS56114500A JP1586080A JP1586080A JPS56114500A JP S56114500 A JPS56114500 A JP S56114500A JP 1586080 A JP1586080 A JP 1586080A JP 1586080 A JP1586080 A JP 1586080A JP S56114500 A JPS56114500 A JP S56114500A
Authority
JP
Japan
Prior art keywords
bonded
film
ethylene trifluoride
piezoelectric film
copolymer
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
JP1586080A
Other languages
Japanese (ja)
Other versions
JPS6242560B2 (en
Inventor
Koji Daito
Toshiharu Nakanishi
Keiko Koga
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP1586080A priority Critical patent/JPS56114500A/en
Priority to EP81100836A priority patent/EP0037877B1/en
Priority to AU66933/81A priority patent/AU544447B2/en
Priority to DE8181100836T priority patent/DE3166101D1/en
Priority to CA000370378A priority patent/CA1183595A/en
Publication of JPS56114500A publication Critical patent/JPS56114500A/en
Priority to US06/510,687 priority patent/US4578442A/en
Publication of JPS6242560B2 publication Critical patent/JPS6242560B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/85—Piezoelectric or electrostrictive active materials
    • H10N30/857—Macromolecular compositions

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

PURPOSE:To obtain an ultrasonic transducer which has a large electromechanical coupling coefficient regarding thickness vibration by constituting a piezoelectric body by utilizing deformation perpendicular to the film surface of a copolymer of vinylidene fluoride and ethylene trifluoride. CONSTITUTION:Onto polymer substrate 1, copper plate 2 is bonded and to this, a material which is a copolymer of vinylidene fluoride and ethylene trifluoride and has Al vapor-deposition electrode 3 on piezoelectric film 4 of about 43mum in thickness containing about 25mol% ethylene trifluoride is bonded. Further, an electric connection with electrode 3 on the piezoelectric film is made by earthing metallic case 6, polyester film 5 for surface protection is bonded onto piezoelectric film 4 and the whole body is contained in plastics-made case 7.
JP1586080A 1980-02-07 1980-02-12 Ultrasonic transducer Granted JPS56114500A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP1586080A JPS56114500A (en) 1980-02-12 1980-02-12 Ultrasonic transducer
EP81100836A EP0037877B1 (en) 1980-02-07 1981-02-05 Piezoelectric polymer material, process for producing the same and an ultrasonic transducer utilizing the same
AU66933/81A AU544447B2 (en) 1980-02-07 1981-02-05 Vinylidene fluoride and ethylene trifluoride copolymer
DE8181100836T DE3166101D1 (en) 1980-02-07 1981-02-05 Piezoelectric polymer material, process for producing the same and an ultrasonic transducer utilizing the same
CA000370378A CA1183595A (en) 1980-02-07 1981-02-06 Piezoelectric polymer material, a process for producing the same and an ultrasonic transducer utilized the same
US06/510,687 US4578442A (en) 1980-02-07 1983-07-05 Piezoelectric polymeric material, a process for producing the same and an ultrasonic transducer utilizing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1586080A JPS56114500A (en) 1980-02-12 1980-02-12 Ultrasonic transducer

Publications (2)

Publication Number Publication Date
JPS56114500A true JPS56114500A (en) 1981-09-09
JPS6242560B2 JPS6242560B2 (en) 1987-09-09

Family

ID=11900547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1586080A Granted JPS56114500A (en) 1980-02-07 1980-02-12 Ultrasonic transducer

Country Status (1)

Country Link
JP (1) JPS56114500A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158199A (en) * 1983-02-25 1984-09-07 Daikin Ind Ltd Electroacoustic transducer
WO2006135067A1 (en) * 2005-06-16 2006-12-21 National University Corporation Okayama University Transducer and measuring instrument comprising the same
JP2012177603A (en) * 2011-02-25 2012-09-13 Mitsubishi Heavy Ind Ltd Ultrasonic inspection method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019216830A (en) 2018-06-15 2019-12-26 株式会社トライテック Cover for rigid endoscope and endoscope unit
JP2021041006A (en) * 2019-09-12 2021-03-18 国立大学法人 長崎大学 Cover of rigid endoscope and endoscope unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029159A (en) * 1973-07-17 1975-03-25
JPS5123439A (en) * 1974-08-22 1976-02-25 Nippon Steel Corp Kotakumetsukiitano seizohoho
JPS5269000A (en) * 1975-12-04 1977-06-08 Daikin Ind Ltd Highhmolecular dielectric material
JPS5326995A (en) * 1976-08-25 1978-03-13 Daikin Ind Ltd Highhmolecular piezooelectric material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029159A (en) * 1973-07-17 1975-03-25
JPS5123439A (en) * 1974-08-22 1976-02-25 Nippon Steel Corp Kotakumetsukiitano seizohoho
JPS5269000A (en) * 1975-12-04 1977-06-08 Daikin Ind Ltd Highhmolecular dielectric material
JPS5326995A (en) * 1976-08-25 1978-03-13 Daikin Ind Ltd Highhmolecular piezooelectric material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59158199A (en) * 1983-02-25 1984-09-07 Daikin Ind Ltd Electroacoustic transducer
WO2006135067A1 (en) * 2005-06-16 2006-12-21 National University Corporation Okayama University Transducer and measuring instrument comprising the same
JP4734657B2 (en) * 2005-06-16 2011-07-27 国立大学法人 岡山大学 Transducer and measuring device provided with the transducer
JP2012177603A (en) * 2011-02-25 2012-09-13 Mitsubishi Heavy Ind Ltd Ultrasonic inspection method

Also Published As

Publication number Publication date
JPS6242560B2 (en) 1987-09-09

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