JPS5733898A - Electroacoustic converting element and its manufacture - Google Patents

Electroacoustic converting element and its manufacture

Info

Publication number
JPS5733898A
JPS5733898A JP10857480A JP10857480A JPS5733898A JP S5733898 A JPS5733898 A JP S5733898A JP 10857480 A JP10857480 A JP 10857480A JP 10857480 A JP10857480 A JP 10857480A JP S5733898 A JPS5733898 A JP S5733898A
Authority
JP
Japan
Prior art keywords
ultrasonic
piezoelectric element
macromolecular
plates
stuck
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
JP10857480A
Other languages
Japanese (ja)
Inventor
Hiroshi Obara
Naohiro Murayama
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 JP10857480A priority Critical patent/JPS5733898A/en
Publication of JPS5733898A publication Critical patent/JPS5733898A/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
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices

Landscapes

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

Abstract

PURPOSE:To prevent generation of a reflected wave of an ultrasonic wave in the boundary of an ultrasonic medium and a macromolecular piezoelectric body, by lining the reverse side of the marcomolecular piezoelectric body by use of an acoustical absorbent by which the acoustic impedance is varied stepwise or continuously in the direction of thickness. CONSTITUTION:Rubber plates 21-25 having different content percentage of metallic powder, respectively, are provided, and are constituted so that the rubber plate 21 has the minimum and the rubber plate 25 has the maximum content percentage. These plates 21-25 are laminated and are stuck to each other with an adhesive. On the side having a minimum metallic content, among the laminated rubber plates which have been prepared in this way is stuck a macromolecular piezoelectric element 1. The other surface of the macromolecular piezoelectric element is joined with an ultrasonic medium 2. In this way, generation of a reflected wave of an ultrasonic wave is prevented in the boundary of the ultrasonic medium 2 and the macromolecular piezoelectric element 1.
JP10857480A 1980-08-07 1980-08-07 Electroacoustic converting element and its manufacture Pending JPS5733898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10857480A JPS5733898A (en) 1980-08-07 1980-08-07 Electroacoustic converting element and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10857480A JPS5733898A (en) 1980-08-07 1980-08-07 Electroacoustic converting element and its manufacture

Publications (1)

Publication Number Publication Date
JPS5733898A true JPS5733898A (en) 1982-02-24

Family

ID=14488259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10857480A Pending JPS5733898A (en) 1980-08-07 1980-08-07 Electroacoustic converting element and its manufacture

Country Status (1)

Country Link
JP (1) JPS5733898A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366161A2 (en) * 1982-12-30 1990-05-02 Fujitsu Limited Electro-sound transducer, and a probe unit or ultrasonic diagnostic apparatus using such a transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0366161A2 (en) * 1982-12-30 1990-05-02 Fujitsu Limited Electro-sound transducer, and a probe unit or ultrasonic diagnostic apparatus using such a transducer

Similar Documents

Publication Publication Date Title
WO2001003108A3 (en) Ultrasonic linear or curvilinear transducer and connection technique therefore
ATE307T1 (en) METHOD OF TRANSMITTING ULTRASONIC ENERGY INTO OR OUT OF A BODY AND FACING ULTRASONIC TRANSDUCER.
AU548536B2 (en) Transducer plate for piezoelectric electro-acoustic transducers
JPS5698651A (en) Sound converter
JPS55112019A (en) Elastic surface wave device
ES8100591A1 (en) Transducer
JPS5733898A (en) Electroacoustic converting element and its manufacture
CA2330920A1 (en) Transducer backing material and method of application
GB1104676A (en) Acoustic coupling
JPS6474817A (en) Ultrasonic delay line
JPS5787298A (en) Ultrasonic transducer
JPS5780900A (en) Production for ultrasonic probe
JPS6440894A (en) New sound absorbing material
JPS55121799A (en) Electroacoustic conversion element
JPS5232650A (en) Surface elastic wave element
JPS61296899A (en) Ultrasonic oscillator
GB1395294A (en) Acoustic surface wave device
RU95107281A (en) Separate-integrated ultrasonic converter
JPS57141199A (en) Ultrasonic wave probe
JPS55145500A (en) Electricity-sound converting element
JPS5773592A (en) Ultrasonic wave probe and its production
JPS6127277Y2 (en)
JPS55151893A (en) Ultrasonic transducer using high molecular piezoelectric film
JPS53116756A (en) Inter-digital transducer for elastic surface wave
JPS55156500A (en) Electro-acoustic converting element