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JPS55104149A - Sound wave receiver of variable curvature - Google Patents

Sound wave receiver of variable curvature

Info

Publication number
JPS55104149A
JPS55104149A JP1129679A JP1129679A JPS55104149A JP S55104149 A JPS55104149 A JP S55104149A JP 1129679 A JP1129679 A JP 1129679A JP 1129679 A JP1129679 A JP 1129679A JP S55104149 A JPS55104149 A JP S55104149A
Authority
JP
Japan
Prior art keywords
piezo
electric
layer
electrodes
voltage
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
JP1129679A
Other languages
Japanese (ja)
Other versions
JPS5919680B2 (en
Inventor
Masabumi Yoshida
Hirokuni Sato
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 JP1129679A priority Critical patent/JPS5919680B2/en
Publication of JPS55104149A publication Critical patent/JPS55104149A/en
Publication of JPS5919680B2 publication Critical patent/JPS5919680B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To enable to change the radius of curvature arbitrarily, by the wiring from the controllable DC power supply to the piezo-electric constituent attaching a pair of electrodes to the both sides of piezo-electric material layer and laminating the pressure interference body layer to one electrode. CONSTITUTION:The electrodes 3, 3' are attached to the both sides of the layer 2 of piezoelectric material film such as piezo-electric ceramic, and the pressure interference layer 4 made of metal or an arbitrary material is laminated on one electrode 3'. Further, assuming that the electrodes 3, 3' are very thin, the force required for bending is negligible, the piezo-electric material layer 2 has strong piezo-electric constant only toward one direction, and the piezo-electric interference layer 4 does not have piezo-electricity. Next, it is assumed that DC voltage is fed between the electrodes 3, 3' from controllable DC power supply 8 consisting of the voltage amplifier 5, D/A converter 6 and microcomputer 7. Thus, the radius of curvature of the piezoelectric constituent 1 consisting of the piezo-electric material layer 2 and pressure interference layer 4 can arbitrarily be changed through the change in the voltage.
JP1129679A 1979-02-02 1979-02-02 Variable curvature sound wave transmitter/receiver Expired JPS5919680B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1129679A JPS5919680B2 (en) 1979-02-02 1979-02-02 Variable curvature sound wave transmitter/receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1129679A JPS5919680B2 (en) 1979-02-02 1979-02-02 Variable curvature sound wave transmitter/receiver

Publications (2)

Publication Number Publication Date
JPS55104149A true JPS55104149A (en) 1980-08-09
JPS5919680B2 JPS5919680B2 (en) 1984-05-08

Family

ID=11774026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1129679A Expired JPS5919680B2 (en) 1979-02-02 1979-02-02 Variable curvature sound wave transmitter/receiver

Country Status (1)

Country Link
JP (1) JPS5919680B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0784349A1 (en) 1996-01-11 1997-07-16 Wac Data Services Co. Ltd. Stacked piezoelectric actuator
JPWO2012086125A1 (en) * 2010-12-20 2014-05-22 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 Oscillator and electronic device
JP2016530508A (en) * 2013-08-02 2016-09-29 タレス A sonar system with a curved antenna or an antenna configured to transmit the same transmission pattern as a curved antenna

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62103888U (en) * 1985-12-19 1987-07-02

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0784349A1 (en) 1996-01-11 1997-07-16 Wac Data Services Co. Ltd. Stacked piezoelectric actuator
JPWO2012086125A1 (en) * 2010-12-20 2014-05-22 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 Oscillator and electronic device
JP6107138B2 (en) * 2010-12-20 2017-04-05 日本電気株式会社 Oscillator and electronic device
JP2016530508A (en) * 2013-08-02 2016-09-29 タレス A sonar system with a curved antenna or an antenna configured to transmit the same transmission pattern as a curved antenna
US10061022B2 (en) 2013-08-02 2018-08-28 Thales Sonar system with curved antenna or antenna configured to transmit the same transmission pattern as the curved antenna

Also Published As

Publication number Publication date
JPS5919680B2 (en) 1984-05-08

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