JPS5764103A - Measuring method for flatness of steel plate - Google Patents

Measuring method for flatness of steel plate

Info

Publication number
JPS5764103A
JPS5764103A JP55140250A JP14025080A JPS5764103A JP S5764103 A JPS5764103 A JP S5764103A JP 55140250 A JP55140250 A JP 55140250A JP 14025080 A JP14025080 A JP 14025080A JP S5764103 A JPS5764103 A JP S5764103A
Authority
JP
Japan
Prior art keywords
steel plate
flatness
components
traveling
voltages
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
JP55140250A
Other languages
Japanese (ja)
Inventor
Saburo Tsuruya
Sadao Kawashima
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP55140250A priority Critical patent/JPS5764103A/en
Publication of JPS5764103A publication Critical patent/JPS5764103A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/34—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
    • G01B7/345—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces for measuring evenness

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE:To measure flatness without the influence of vertical vibrations owing to traveling, and noise components by subjecting the outputs of >=3 sets of displacement gages provided in the width direction of a steel plate under rolling to prescribed pocessing and generating the DC voltages corresponding to flatness. CONSTITUTION:The displacements corresponding to the height of a steel plate 1 are detected by 3 sets of displacement gages 2 provided in the width direction of the traveling steel plate 1 of a rolling device, and are converted to voltage signals via an HPF3. The differences between these voltages and the average voltage value by an average operator 4 are outputted from a differential amplifier 5, by which the flapping components of the steel plate are removed. Further, these are multiplied by the output of an amplifier 3 in a multiplier 6 and are made into the voltage including the DC components proportional to the square of plate waving amplitude. They are removed of the AC components owing to inclusion from other displacement gages and noises or the like by the subsequent processing with an LPF7, and an extraction device 8, whereby the DC voltages proportional to the plate height are generated, and the flatness of the steel plate is measured without the influence of vertical vibrations owing to traveling and noise components.
JP55140250A 1980-10-06 1980-10-06 Measuring method for flatness of steel plate Pending JPS5764103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55140250A JPS5764103A (en) 1980-10-06 1980-10-06 Measuring method for flatness of steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55140250A JPS5764103A (en) 1980-10-06 1980-10-06 Measuring method for flatness of steel plate

Publications (1)

Publication Number Publication Date
JPS5764103A true JPS5764103A (en) 1982-04-19

Family

ID=15264398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55140250A Pending JPS5764103A (en) 1980-10-06 1980-10-06 Measuring method for flatness of steel plate

Country Status (1)

Country Link
JP (1) JPS5764103A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050408A (en) * 1983-08-30 1985-03-20 Ando Electric Co Ltd Coordinate measuring machine wherein measuring errors due to vibration are made less
JPS6140503A (en) * 1984-07-31 1986-02-26 Sumitomo Metal Ind Ltd Measurement of flatness degree of plate
JPS61131608U (en) * 1985-02-06 1986-08-16
JPH0197933U (en) * 1987-12-22 1989-06-29
JP2011501106A (en) * 2007-04-26 2011-01-06 イデント テクノロジー アーゲー Sensor device and method for generating signal representing position of limb or position change

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050408A (en) * 1983-08-30 1985-03-20 Ando Electric Co Ltd Coordinate measuring machine wherein measuring errors due to vibration are made less
JPS6140503A (en) * 1984-07-31 1986-02-26 Sumitomo Metal Ind Ltd Measurement of flatness degree of plate
JPH0552441B2 (en) * 1984-07-31 1993-08-05 Sumitomo Metal Ind
JPS61131608U (en) * 1985-02-06 1986-08-16
JPH0197933U (en) * 1987-12-22 1989-06-29
JPH0512030Y2 (en) * 1987-12-22 1993-03-26
JP2011501106A (en) * 2007-04-26 2011-01-06 イデント テクノロジー アーゲー Sensor device and method for generating signal representing position of limb or position change

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