JPS56165486A - Ultrasonic wave probe - Google Patents

Ultrasonic wave probe

Info

Publication number
JPS56165486A
JPS56165486A JP6893980A JP6893980A JPS56165486A JP S56165486 A JPS56165486 A JP S56165486A JP 6893980 A JP6893980 A JP 6893980A JP 6893980 A JP6893980 A JP 6893980A JP S56165486 A JPS56165486 A JP S56165486A
Authority
JP
Japan
Prior art keywords
concave
transducer
ultrasonic wave
convex surface
wave probe
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
JP6893980A
Other languages
Japanese (ja)
Inventor
Chihiro Kasai
Takeshi Fujie
Matsuki Kasori
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.)
Hitachi Ltd
Original Assignee
Aloka Co Ltd
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 Aloka Co Ltd filed Critical Aloka Co Ltd
Priority to JP6893980A priority Critical patent/JPS56165486A/en
Publication of JPS56165486A publication Critical patent/JPS56165486A/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)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain an ultrasonic wave probe having a resonance over a wide range of frequency bands, by forming a concave or convex surface at least on one of both surfaces of an electroacoustic transducer which is used for an ultrasonic wave probe or forming a concave or convex surface having different curvatures on both sides of the transducer. CONSTITUTION:As shown in the diagram, at least one of both surfaces of an electroacoustic transducer 10 which is used for an ultrasonic wave probe is formed concave. An electrode 12 is formed on both surfaces with installation of a sound packing material 16 damping the free vibration on the rear side of the transducer 10. An electric signal having a frequency equal to the resonance frequency dicided by the thickness of the transducer 10 is supplied to the electrode 12 to produce an intensive ultrasonic wave. In the case of a concave surface, the center part of the transducer 10 has a resonance with a high frequency which is gradually reduced toward the circumference part. The same result is obtained with a convex surface instead of the concave surface or with a concave or convex surface having different curvatures. In such way, a wide frequency band fW can be obtained to realize a probe that is suited to various types of objects to be inspected.
JP6893980A 1980-05-26 1980-05-26 Ultrasonic wave probe Pending JPS56165486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6893980A JPS56165486A (en) 1980-05-26 1980-05-26 Ultrasonic wave probe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6893980A JPS56165486A (en) 1980-05-26 1980-05-26 Ultrasonic wave probe

Publications (1)

Publication Number Publication Date
JPS56165486A true JPS56165486A (en) 1981-12-19

Family

ID=13388131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6893980A Pending JPS56165486A (en) 1980-05-26 1980-05-26 Ultrasonic wave probe

Country Status (1)

Country Link
JP (1) JPS56165486A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389953A2 (en) * 1989-03-25 1990-10-03 Toppan Printing Co., Ltd. Ultrasound generator assembly and ultrasonic acoustic microscope
JPH0515025U (en) * 1992-04-22 1993-02-26 シチズン時計株式会社 Matrix display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389953A2 (en) * 1989-03-25 1990-10-03 Toppan Printing Co., Ltd. Ultrasound generator assembly and ultrasonic acoustic microscope
JPH0515025U (en) * 1992-04-22 1993-02-26 シチズン時計株式会社 Matrix display

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