JPS5748894A - Ultrasonic wave transmitter and receiver having variable directivity - Google Patents

Ultrasonic wave transmitter and receiver having variable directivity

Info

Publication number
JPS5748894A
JPS5748894A JP12372480A JP12372480A JPS5748894A JP S5748894 A JPS5748894 A JP S5748894A JP 12372480 A JP12372480 A JP 12372480A JP 12372480 A JP12372480 A JP 12372480A JP S5748894 A JPS5748894 A JP S5748894A
Authority
JP
Japan
Prior art keywords
ultrasonic wave
reflector
receiver
wave signal
wave transmitter
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
JP12372480A
Other languages
Japanese (ja)
Inventor
Yoshiharu Taniguchi
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.)
Nippon Ceramic Co Ltd
Original Assignee
Nippon Ceramic 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 Nippon Ceramic Co Ltd filed Critical Nippon Ceramic Co Ltd
Priority to JP12372480A priority Critical patent/JPS5748894A/en
Publication of JPS5748894A publication Critical patent/JPS5748894A/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
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

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

Abstract

PURPOSE:To make easy the variation of directivity, by varying the path of reflection to the aperture of an ultrasonic wave transmitter/receiver, through the provision of an ultrasonic signal generating source having a reflector which can make position shift mechanically on the path of an ultrasonic wave signal. CONSTITUTION:A bell type reflector 11 is provided at a radiation section of a primary ultrasonic wave signal of a transducer 10 being a generating source of an ultrasonic wave signal, and this reflector 11 is mounted with a screw 11-1 or the like so that the reflector can be moved back and forth. A cone type reflector 12 is located around the reflector 11, which is inserted in a hole provided at the bottom of the cone type reflector 12 rotatably. The directivity of the ultrasonic wave signal from a transducer 10 can be changed into various characteristics, by varying a disstance (d) between a punch metal plate 13 of the aperture of the ultrasonic wave transmitter/receiver and the bottom of the reflector 12.
JP12372480A 1980-09-06 1980-09-06 Ultrasonic wave transmitter and receiver having variable directivity Pending JPS5748894A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12372480A JPS5748894A (en) 1980-09-06 1980-09-06 Ultrasonic wave transmitter and receiver having variable directivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12372480A JPS5748894A (en) 1980-09-06 1980-09-06 Ultrasonic wave transmitter and receiver having variable directivity

Publications (1)

Publication Number Publication Date
JPS5748894A true JPS5748894A (en) 1982-03-20

Family

ID=14867787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12372480A Pending JPS5748894A (en) 1980-09-06 1980-09-06 Ultrasonic wave transmitter and receiver having variable directivity

Country Status (1)

Country Link
JP (1) JPS5748894A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629834A (en) * 1984-10-31 1986-12-16 Bio-Dynamics Research & Development Corporation Apparatus and method for vibratory signal detection
JP2016523493A (en) * 2013-06-27 2016-08-08 アレバ・エヌペ Ultrasonic transducer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629834A (en) * 1984-10-31 1986-12-16 Bio-Dynamics Research & Development Corporation Apparatus and method for vibratory signal detection
JP2016523493A (en) * 2013-06-27 2016-08-08 アレバ・エヌペ Ultrasonic transducer
US10242656B2 (en) 2013-06-27 2019-03-26 Areva Np Ultrasound transducer

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