JPS5726703A - Measuring instrument for size of sectional shape of steel shapes - Google Patents

Measuring instrument for size of sectional shape of steel shapes

Info

Publication number
JPS5726703A
JPS5726703A JP10201980A JP10201980A JPS5726703A JP S5726703 A JPS5726703 A JP S5726703A JP 10201980 A JP10201980 A JP 10201980A JP 10201980 A JP10201980 A JP 10201980A JP S5726703 A JPS5726703 A JP S5726703A
Authority
JP
Japan
Prior art keywords
steel shapes
sectional shape
steel
white
shapes
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
JP10201980A
Other languages
Japanese (ja)
Inventor
Kiyoshi Miyagawa
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 Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP10201980A priority Critical patent/JPS5726703A/en
Publication of JPS5726703A publication Critical patent/JPS5726703A/en
Pending 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To judge the variation state of the sectional shape of steel shapes to be measured, placed horizontally, instantaneously and accurately by irradiating each surface with light from a white slit light source, by photographing a bright line image formed on the surface of the steel shapes by an ITV, and by performing picture processing, etc. CONSTITUTION:The top and reverse, and left and right surfaces of steel shapes to be measured placed horizontally are irradiated with white slit light. In this case, the white slit light crosses the axial direction of the steel shapes at right angles in the horizontal or vertical plane containing the axial line, and bright lines formed on the form steel by the irradiation are photographed by an ITV after picture processing, computer processing is performed to judge the sectional shape of the steel shapes. For example, the top and reverse surfaces of steel shapes 1 to be measured which is carried on rollers 4 are each irradiated with light from a white-slit-light source 2', and bright lines formed on the steel shapes at this time are photographed by an ITV3 to display required size on a display device C through a picture processor A and a computer B, thus judging variations in sectional shape instantaneously.
JP10201980A 1980-07-24 1980-07-24 Measuring instrument for size of sectional shape of steel shapes Pending JPS5726703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10201980A JPS5726703A (en) 1980-07-24 1980-07-24 Measuring instrument for size of sectional shape of steel shapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10201980A JPS5726703A (en) 1980-07-24 1980-07-24 Measuring instrument for size of sectional shape of steel shapes

Publications (1)

Publication Number Publication Date
JPS5726703A true JPS5726703A (en) 1982-02-12

Family

ID=14316031

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10201980A Pending JPS5726703A (en) 1980-07-24 1980-07-24 Measuring instrument for size of sectional shape of steel shapes

Country Status (1)

Country Link
JP (1) JPS5726703A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61294305A (en) * 1985-06-22 1986-12-25 Nippon Steel Corp Detection for front end part of coil
JPS61294307A (en) * 1985-06-22 1986-12-25 Nippon Steel Corp Detection for binding material of coil
US5253039A (en) * 1990-10-19 1993-10-12 Kawasaki Steel Corporation Process and apparatus for measuring sizes of steel sections
FR2772122A1 (en) * 1997-12-05 1999-06-04 Premium Instr Sa METHOD AND DEVICE FOR MEASURING THE SHAPE AND / OR THE POSITION OF A PROFILE OF A SIDE SURFACE OF AN ELONGATED PRODUCT

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61294305A (en) * 1985-06-22 1986-12-25 Nippon Steel Corp Detection for front end part of coil
JPS61294307A (en) * 1985-06-22 1986-12-25 Nippon Steel Corp Detection for binding material of coil
US5253039A (en) * 1990-10-19 1993-10-12 Kawasaki Steel Corporation Process and apparatus for measuring sizes of steel sections
FR2772122A1 (en) * 1997-12-05 1999-06-04 Premium Instr Sa METHOD AND DEVICE FOR MEASURING THE SHAPE AND / OR THE POSITION OF A PROFILE OF A SIDE SURFACE OF AN ELONGATED PRODUCT

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