JPS57168108A - Method for detecting shape of steel plate - Google Patents

Method for detecting shape of steel plate

Info

Publication number
JPS57168108A
JPS57168108A JP5312381A JP5312381A JPS57168108A JP S57168108 A JPS57168108 A JP S57168108A JP 5312381 A JP5312381 A JP 5312381A JP 5312381 A JP5312381 A JP 5312381A JP S57168108 A JPS57168108 A JP S57168108A
Authority
JP
Japan
Prior art keywords
steel plate
shape
sensors
distance
measuring
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
JP5312381A
Other languages
Japanese (ja)
Inventor
Kazuo Sano
Katsujiro Watabe
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
NKK Corp
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP5312381A priority Critical patent/JPS57168108A/en
Publication of JPS57168108A publication Critical patent/JPS57168108A/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
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/06—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring contours or curvatures

Abstract

PURPOSE:To improve resolution in measuring the shape by detecting the ultrasonic wave echoes reflected from the steel plate by an ultrasonic wave tranceiver through liquid columns. CONSTITUTION:Continuous water clumns 11-13 are formed between the steel plate 1 which is sent from working rolls 2 and 3 in the direction of an arrow and sensors 7-9. The ultrasonic waves from the sensors 7-9 are transmitted to the steel plate 1 through the water columns 11-13. The reflected echoes from the surface are detected by the sensors 7-9, and introduced to distance meters 17, 20, and 21. Based on the time interval from the transmission to the reception of the ultrasonic waves, the distance, i.e. the change in the shape of the steel plate 1, is detected. Since the measurement is performed for long measuring distance in the small measuring range in the small liquid column, the resolution in the measurement of the shape is improved.
JP5312381A 1981-04-10 1981-04-10 Method for detecting shape of steel plate Pending JPS57168108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5312381A JPS57168108A (en) 1981-04-10 1981-04-10 Method for detecting shape of steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5312381A JPS57168108A (en) 1981-04-10 1981-04-10 Method for detecting shape of steel plate

Publications (1)

Publication Number Publication Date
JPS57168108A true JPS57168108A (en) 1982-10-16

Family

ID=12934024

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5312381A Pending JPS57168108A (en) 1981-04-10 1981-04-10 Method for detecting shape of steel plate

Country Status (1)

Country Link
JP (1) JPS57168108A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221785A2 (en) * 1985-10-21 1987-05-13 Kawasaki Steel Corporation Ultra-sonic distance sensor and monitoring of surface profile utilizing ultra-sonic distance sensor
WO1991018301A1 (en) * 1990-05-24 1991-11-28 Davy Mckee (Sheffield) Limited Measurement of flatness of strip material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221785A2 (en) * 1985-10-21 1987-05-13 Kawasaki Steel Corporation Ultra-sonic distance sensor and monitoring of surface profile utilizing ultra-sonic distance sensor
US4976149A (en) * 1985-10-21 1990-12-11 Kawasaki Steel Corporation Ultrasonic distance sensor and monitoring of surface profile utilizing ultrasonic distance sensor
WO1991018301A1 (en) * 1990-05-24 1991-11-28 Davy Mckee (Sheffield) Limited Measurement of flatness of strip material

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