JPS55146067A - Ultrasonic video unit - Google Patents

Ultrasonic video unit

Info

Publication number
JPS55146067A
JPS55146067A JP5340679A JP5340679A JPS55146067A JP S55146067 A JPS55146067 A JP S55146067A JP 5340679 A JP5340679 A JP 5340679A JP 5340679 A JP5340679 A JP 5340679A JP S55146067 A JPS55146067 A JP S55146067A
Authority
JP
Japan
Prior art keywords
stored
wall
transducer
memory
ultrasonic
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
JP5340679A
Other languages
Japanese (ja)
Inventor
Kunihiko Mano
Kazuhiko Nitori
Mitsutoshi Kubota
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP5340679A priority Critical patent/JPS55146067A/en
Publication of JPS55146067A publication Critical patent/JPS55146067A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
    • A61B8/4494—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer characterised by the arrangement of the transducer elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To correct the dispersion of ultrasonic beam sensitivity, by calibrating the sensitivity of transducer element and peripheral electronic circuit. CONSTITUTION:A plurality of continued elements are selected from the transducer elements constituting circular arrangement and ultrasonic narrow transmission beam is radiated to the inner wall of the test hole. The reflection echo from the inner wall is detected at the reception beam former 33 and stored in the digital memory 36 after A/D conversion 34. Next, the similar operation is made by shifting one transducer element. By sequentially repeating the operation like this, the strength of reflection echo from the inner wall is stored in the memory 36. On the other hand, the data obtained by putting the transducer in the virtual test hole is stored in the memory 36, and the said measuring data is calibrated with the operation circuit 35 by using the correction numeral and it is displayed on the display 37.
JP5340679A 1979-05-02 1979-05-02 Ultrasonic video unit Pending JPS55146067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5340679A JPS55146067A (en) 1979-05-02 1979-05-02 Ultrasonic video unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5340679A JPS55146067A (en) 1979-05-02 1979-05-02 Ultrasonic video unit

Publications (1)

Publication Number Publication Date
JPS55146067A true JPS55146067A (en) 1980-11-14

Family

ID=12941936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5340679A Pending JPS55146067A (en) 1979-05-02 1979-05-02 Ultrasonic video unit

Country Status (1)

Country Link
JP (1) JPS55146067A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029140A (en) * 1983-07-28 1985-02-14 株式会社東芝 Ultrasonic diagnostic apparatus
JP2619142B2 (en) * 1989-08-07 1997-06-11 日立建機株式会社 Ultrasonic inspection equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6029140A (en) * 1983-07-28 1985-02-14 株式会社東芝 Ultrasonic diagnostic apparatus
JP2619142B2 (en) * 1989-08-07 1997-06-11 日立建機株式会社 Ultrasonic inspection equipment

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