JPS56122952A - Rotatable defectoscope - Google Patents

Rotatable defectoscope

Info

Publication number
JPS56122952A
JPS56122952A JP2581480A JP2581480A JPS56122952A JP S56122952 A JPS56122952 A JP S56122952A JP 2581480 A JP2581480 A JP 2581480A JP 2581480 A JP2581480 A JP 2581480A JP S56122952 A JPS56122952 A JP S56122952A
Authority
JP
Japan
Prior art keywords
rotation frequency
speed
control circuit
flaw detection
carrying
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.)
Granted
Application number
JP2581480A
Other languages
Japanese (ja)
Other versions
JPS616337B2 (en
Inventor
Hiroaki Kondo
Takayoshi Kawano
Tsuneo Sagawa
Masaaki Sato
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.)
JFE Steel Corp
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Kawasaki Steel 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 Mitsubishi Electric Corp, Kawasaki Steel Corp filed Critical Mitsubishi Electric Corp
Priority to JP2581480A priority Critical patent/JPS56122952A/en
Publication of JPS56122952A publication Critical patent/JPS56122952A/en
Publication of JPS616337B2 publication Critical patent/JPS616337B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/27—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the material relative to a stationary sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/26—Scanned objects
    • G01N2291/263—Surfaces
    • G01N2291/2634—Surfaces cylindrical from outside

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To prevent uneven flaw detection and overlapping flaw detection, by using the characteristic of the peripheral speed limit rotation frequency to control the rotation frequency and the carrying speed of the rotating mechanism part. CONSTITUTION:The outside diameter of the steel pipe to be checked, the limit rotation frequency of the rotating mechanism part, the flaw detection pulse transmission repeat frequency from the probe which performs scanning spirally, the transmission timing of said flaw detection pulse, and the ratio of the circumference to the diameter are set by numeric set switches 9-14. Peripheral speed operator 13 operates the limit peripheral speed, and function generator 15 obtains the peripheral speed limit rotation frequency to calculate the rotation frequency corresponding to the set value of switch 9. The output of the function generator is inputted not only to rotation frequency control circuit 17 through acceleration and deceleration controller 16 but also to speed operator 22. Rotation frequency control circuit 17 drives the first motor 18 to rotate the rotating mechanism part. Speed operator 22 multiplies the set value of switch 21 and the output of function generator 15 to output the carrying speed signal to display equipment 23 and carrying speed control circuit 24. Carrying speed control circuit 24 drives the second motor 25 to rotate the driving roller of carrying mechanism 26.
JP2581480A 1980-02-29 1980-02-29 Rotatable defectoscope Granted JPS56122952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2581480A JPS56122952A (en) 1980-02-29 1980-02-29 Rotatable defectoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2581480A JPS56122952A (en) 1980-02-29 1980-02-29 Rotatable defectoscope

Publications (2)

Publication Number Publication Date
JPS56122952A true JPS56122952A (en) 1981-09-26
JPS616337B2 JPS616337B2 (en) 1986-02-25

Family

ID=12176326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2581480A Granted JPS56122952A (en) 1980-02-29 1980-02-29 Rotatable defectoscope

Country Status (1)

Country Link
JP (1) JPS56122952A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0394156A (en) * 1989-09-01 1991-04-18 Nkk Corp Ultrasonic flaw detecting method
JP2019090682A (en) * 2017-11-14 2019-06-13 日本製鉄株式会社 Ultrasonic flaw detection method
CN109900807A (en) * 2019-04-16 2019-06-18 中北大学 A kind of ultrasound positioning device of plastic conduit steel keel
CN109900806A (en) * 2019-04-16 2019-06-18 中北大学 A kind of ultrasound locating method of plastic conduit steel keel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0394156A (en) * 1989-09-01 1991-04-18 Nkk Corp Ultrasonic flaw detecting method
JP2019090682A (en) * 2017-11-14 2019-06-13 日本製鉄株式会社 Ultrasonic flaw detection method
CN109900807A (en) * 2019-04-16 2019-06-18 中北大学 A kind of ultrasound positioning device of plastic conduit steel keel
CN109900806A (en) * 2019-04-16 2019-06-18 中北大学 A kind of ultrasound locating method of plastic conduit steel keel

Also Published As

Publication number Publication date
JPS616337B2 (en) 1986-02-25

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