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JPS5570200A - Piezoelectric electro-acoustic converter - Google Patents

Piezoelectric electro-acoustic converter

Info

Publication number
JPS5570200A
JPS5570200A JP13869079A JP13869079A JPS5570200A JP S5570200 A JPS5570200 A JP S5570200A JP 13869079 A JP13869079 A JP 13869079A JP 13869079 A JP13869079 A JP 13869079A JP S5570200 A JPS5570200 A JP S5570200A
Authority
JP
Japan
Prior art keywords
vibration
films
film
acoustic converter
increase
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
JP13869079A
Other languages
Japanese (ja)
Other versions
JPS579280B2 (en
Inventor
Naohiro Murayama
Akira Ezaka
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Priority to JP13869079A priority Critical patent/JPS5570200A/en
Publication of JPS5570200A publication Critical patent/JPS5570200A/en
Publication of JPS579280B2 publication Critical patent/JPS579280B2/ja
Granted 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)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To increase the power caused through the field function by combining the vibration films of more than two units of the electro-acoustic converter into one vibration system. CONSTITUTION:Vibration film 1 made of the companding piezoelectric film having the evaporation electrode on the surface forms the concave surface to the outside and is then stretched being held between stators 4a and 4b. The space formed by film 1 is sealed up. The space can also be filled with the gas or the light-weight small substance. In such way, films 1 of the two converters are combined into on vibration system, and electrode terminals 3a and 3b are distributed so that the centers of gravity of the both vibration films may move in the same direction via the same signal voltage. As a result, the power caused by the field can be increased to increase the overall capacity, thus decreasing the winding ratio of the boosting transformer.
JP13869079A 1979-10-29 1979-10-29 Piezoelectric electro-acoustic converter Granted JPS5570200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13869079A JPS5570200A (en) 1979-10-29 1979-10-29 Piezoelectric electro-acoustic converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13869079A JPS5570200A (en) 1979-10-29 1979-10-29 Piezoelectric electro-acoustic converter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP47063356A Division JPS4924125A (en) 1972-06-26 1972-06-26

Publications (2)

Publication Number Publication Date
JPS5570200A true JPS5570200A (en) 1980-05-27
JPS579280B2 JPS579280B2 (en) 1982-02-20

Family

ID=15227829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13869079A Granted JPS5570200A (en) 1979-10-29 1979-10-29 Piezoelectric electro-acoustic converter

Country Status (1)

Country Link
JP (1) JPS5570200A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008141380A (en) * 2006-11-30 2008-06-19 Hyper Drive Corp Vibration element using electroactive polymer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS451343Y1 (en) * 1967-10-02 1970-01-21
JPS4829420A (en) * 1971-08-20 1973-04-19
JPS5197421A (en) * 1975-02-24 1976-08-27 Atsudengatadenki onkyohenkanki

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS451343Y1 (en) * 1967-10-02 1970-01-21
JPS4829420A (en) * 1971-08-20 1973-04-19
JPS5197421A (en) * 1975-02-24 1976-08-27 Atsudengatadenki onkyohenkanki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008141380A (en) * 2006-11-30 2008-06-19 Hyper Drive Corp Vibration element using electroactive polymer

Also Published As

Publication number Publication date
JPS579280B2 (en) 1982-02-20

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