JPS5642494A - Acoustic-wave converging type transducer using high-molecular piezoelectric body - Google Patents

Acoustic-wave converging type transducer using high-molecular piezoelectric body

Info

Publication number
JPS5642494A
JPS5642494A JP11665679A JP11665679A JPS5642494A JP S5642494 A JPS5642494 A JP S5642494A JP 11665679 A JP11665679 A JP 11665679A JP 11665679 A JP11665679 A JP 11665679A JP S5642494 A JPS5642494 A JP S5642494A
Authority
JP
Japan
Prior art keywords
piezoelectric body
acoustic
phase
rings
type transducer
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.)
Pending
Application number
JP11665679A
Other languages
Japanese (ja)
Inventor
Miyo Suzuki
Toshiharu Nakanishi
Koji Daito
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 JP11665679A priority Critical patent/JPS5642494A/en
Priority to US06/186,258 priority patent/US4395652A/en
Priority to EP80105448A priority patent/EP0027542B1/en
Priority to DE8080105448T priority patent/DE3068357D1/en
Publication of JPS5642494A publication Critical patent/JPS5642494A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To facilitate manufacture and to make it possible to drive an acoustic- wave converging type transducer with simple mechanism, by arranging a high- molecular piezoelectric body consisting of fixed small sections while polarizing them alternately in the opposite directions. CONSTITUTION:Piezoelectric body 3 is made into high-molecular one, which is bored with concentric rings B0, A1, B1, A2, and B2 while rings B0, B1 and B2 should be driven in phase as to the polarizing direction and rings A1 and A2 be out of phase with the above-mentioned rings. Consequently, they are drive in phase as a transducer and eventually, they generate mutually out-of-phase acoustic waves, so that the acoustic waves can be focused on focal point (o).
JP11665679A 1979-09-13 1979-09-13 Acoustic-wave converging type transducer using high-molecular piezoelectric body Pending JPS5642494A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11665679A JPS5642494A (en) 1979-09-13 1979-09-13 Acoustic-wave converging type transducer using high-molecular piezoelectric body
US06/186,258 US4395652A (en) 1979-09-13 1980-09-11 Ultrasonic transducer element
EP80105448A EP0027542B1 (en) 1979-09-13 1980-09-12 Ultrasonic transducer element
DE8080105448T DE3068357D1 (en) 1979-09-13 1980-09-12 Ultrasonic transducer element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11665679A JPS5642494A (en) 1979-09-13 1979-09-13 Acoustic-wave converging type transducer using high-molecular piezoelectric body

Publications (1)

Publication Number Publication Date
JPS5642494A true JPS5642494A (en) 1981-04-20

Family

ID=14692629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11665679A Pending JPS5642494A (en) 1979-09-13 1979-09-13 Acoustic-wave converging type transducer using high-molecular piezoelectric body

Country Status (1)

Country Link
JP (1) JPS5642494A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10786988B2 (en) * 2016-02-17 2020-09-29 Ricoh Company, Ltd. Electromechanical transducer element, method of producing the element, liquid discharge head incorporating the element, and liquid discharge apparatus incorporating the head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10786988B2 (en) * 2016-02-17 2020-09-29 Ricoh Company, Ltd. Electromechanical transducer element, method of producing the element, liquid discharge head incorporating the element, and liquid discharge apparatus incorporating the head

Similar Documents

Publication Publication Date Title
IT974427B (en) PROVISION FOR THE GENERATION OF ULTRASONIC OSCILLATIONS, IN PARTICULAR FOR PIEZO MAGNETIC OR PIEZOELECTRIC TRANSDUCERS
JPS53132988A (en) Piezo-vibrator
JPS5642494A (en) Acoustic-wave converging type transducer using high-molecular piezoelectric body
JPS5211926A (en) Array type supersonic wave vibrator
JPS51132986A (en) Electromechanical converter
Lewis Group-type unidirectional SAW devices employing intra-transducer reflector banks
GB1226560A (en)
JPS5337395A (en) Driving method of electrostrictive type transducers
JPS55123297A (en) Composite vibrator
JPS5686598A (en) Manufacture for ultrasonic wave transducer
JPS5365757A (en) Submersible ultrasonic transmitter-receiver
JPS52141543A (en) Manufacture of surface elastic wave unit
JPS5227240A (en) Surface wave filter
SU650003A1 (en) Piezoelectric transducer
JPS5228287A (en) Ultrasonic wave transducer unit
JPS5228222A (en) Coordinate input unit
JPS55151810A (en) Elastic surface wave filter
FR2315197A1 (en) Piezoelectric transducer with acoustically coupled plates - has plates connected at edges to form given acute angle
SU597958A1 (en) Resonance acoustic testing method
JPS51150453A (en) Boarder-shaving-edge driving structure
JPS5640397A (en) Variable focus type ultrasonic transducer using high- polymer piezoelectric film
JPS55142232A (en) Push-pull resonance type vibrating table
JPS55107316A (en) Unidirectional converter for surface acoustic wave
JPS5298492A (en) Piezo-electric vibrator
JPS51150454A (en) Boarder-shaving-edge driving structure