JPS5666995A - Focusing type ultrasonic transducer - Google Patents

Focusing type ultrasonic transducer

Info

Publication number
JPS5666995A
JPS5666995A JP14306879A JP14306879A JPS5666995A JP S5666995 A JPS5666995 A JP S5666995A JP 14306879 A JP14306879 A JP 14306879A JP 14306879 A JP14306879 A JP 14306879A JP S5666995 A JPS5666995 A JP S5666995A
Authority
JP
Japan
Prior art keywords
composite member
transducer
stuck
electrode
acoustic wave
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
JP14306879A
Other languages
Japanese (ja)
Inventor
Toshiharu Nakanishi
Miyo Suzuki
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 JP14306879A priority Critical patent/JPS5666995A/en
Publication of JPS5666995A publication Critical patent/JPS5666995A/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
    • G10K11/30—Sound-focusing or directing, e.g. scanning using refraction, e.g. acoustic lenses

Landscapes

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

Abstract

PURPOSE:To flatten the outside surface of the composite member and not only to improve the contact to the body to be measured but also to easily process a transducer, by sticking the composite member having the modifying and focusing functions in the advancing direction of an acoustic wave, on the front of the transducer. CONSTITUTION:The piezoelectric body 2 is stuck through the back electrode 3 on the supporting member 1 constituting the back acoustical absorbent by nylon, etc., and the surface electrode 4 is provided on the surface of the piezoelectric body 2. The composite member 6 having the function which modifies and focuses the advancing direction of an acoustic wave is stuck on the surface of this surface electrode 4, and 2 kinds of medium 7, 8 having different propagation sound speed are multiarrayed in a ring-form, reciprocally centering around the center axis X, on this composite member 6. The contact to the body to be measured is improved by setting thickness of this composite member 6 to (d) and flattening the outside surface. Also, it is not required to process the concave surface owing to the focusing quality by the composite member 6, and therefore a transducer can be processed easily.
JP14306879A 1979-11-05 1979-11-05 Focusing type ultrasonic transducer Pending JPS5666995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14306879A JPS5666995A (en) 1979-11-05 1979-11-05 Focusing type ultrasonic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14306879A JPS5666995A (en) 1979-11-05 1979-11-05 Focusing type ultrasonic transducer

Publications (1)

Publication Number Publication Date
JPS5666995A true JPS5666995A (en) 1981-06-05

Family

ID=15330165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14306879A Pending JPS5666995A (en) 1979-11-05 1979-11-05 Focusing type ultrasonic transducer

Country Status (1)

Country Link
JP (1) JPS5666995A (en)

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