JPS6342723B2 - - Google Patents

Info

Publication number
JPS6342723B2
JPS6342723B2 JP57055521A JP5552182A JPS6342723B2 JP S6342723 B2 JPS6342723 B2 JP S6342723B2 JP 57055521 A JP57055521 A JP 57055521A JP 5552182 A JP5552182 A JP 5552182A JP S6342723 B2 JPS6342723 B2 JP S6342723B2
Authority
JP
Japan
Prior art keywords
tube
steel pipe
light
photodetectors
tube axis
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.)
Expired
Application number
JP57055521A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58172507A (ja
Inventor
Shigeo Kawabata
Isamu Komine
Morio Saito
Tetsuo Nakano
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 Engineering Corp
Original Assignee
Nippon Kokan 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 Kokan Ltd filed Critical Nippon Kokan Ltd
Priority to JP57055521A priority Critical patent/JPS58172507A/ja
Publication of JPS58172507A publication Critical patent/JPS58172507A/ja
Publication of JPS6342723B2 publication Critical patent/JPS6342723B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/2433—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring outlines by shadow casting
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Control Of Metal Rolling (AREA)
JP57055521A 1982-04-05 1982-04-05 管外面の異常形状検出装置 Granted JPS58172507A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57055521A JPS58172507A (ja) 1982-04-05 1982-04-05 管外面の異常形状検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57055521A JPS58172507A (ja) 1982-04-05 1982-04-05 管外面の異常形状検出装置

Publications (2)

Publication Number Publication Date
JPS58172507A JPS58172507A (ja) 1983-10-11
JPS6342723B2 true JPS6342723B2 (enrdf_load_stackoverflow) 1988-08-25

Family

ID=13001008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57055521A Granted JPS58172507A (ja) 1982-04-05 1982-04-05 管外面の異常形状検出装置

Country Status (1)

Country Link
JP (1) JPS58172507A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101277772B (zh) * 2005-08-02 2011-06-08 住友金属工业株式会社 管的缺陷检测装置及方法
DE102006032813A1 (de) * 2006-07-14 2008-01-24 Sms Demag Ag Vorrichtung zur Drehverriegelung der Stützwalzenbalancierung von Walzgerüsten

Also Published As

Publication number Publication date
JPS58172507A (ja) 1983-10-11

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