JPS5697813A - Calibrating method of optical traveling width gauge - Google Patents

Calibrating method of optical traveling width gauge

Info

Publication number
JPS5697813A
JPS5697813A JP77380A JP77380A JPS5697813A JP S5697813 A JPS5697813 A JP S5697813A JP 77380 A JP77380 A JP 77380A JP 77380 A JP77380 A JP 77380A JP S5697813 A JPS5697813 A JP S5697813A
Authority
JP
Japan
Prior art keywords
width
calibration plate
output
photodetector
width gauge
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
JP77380A
Other languages
Japanese (ja)
Inventor
Seikichi Ogata
Hajime Takinami
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP77380A priority Critical patent/JPS5697813A/en
Publication of JPS5697813A publication Critical patent/JPS5697813A/en
Pending legal-status Critical Current

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  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To maintain high-precision measurement by measuring the width of a calibration plate at a prescribed position on a rolling line by a width gauge, and then by adjusting the zero-adjustment resistance of a deviation calibrating circuit via a motor according to the output that corresponds to the deviation of the measured value from the set width of a width gauge photodetector.
CONSTITUTION: Photodetector 2 of width gauge 1' on detection part trestle 12 is set to the width of a rolled material. Calibration plate charging apparatus 30 is put into operation to charge calibration plate 8 at prescribed position A on a rolling line and position detector 42 confirms that it is at prescribed position A. The output of photodetector 2 is sent to control part 6 and if its output deviates from the position of the calibration plate, the output is amplified to adjust the zero-adjustment resistance via a servomotor. Then, calibration plate 8 is moved back to set a steel-plate width measurement state. Thus, the high-precision measurement can be maintained.
COPYRIGHT: (C)1981,JPO&Japio
JP77380A 1980-01-08 1980-01-08 Calibrating method of optical traveling width gauge Pending JPS5697813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP77380A JPS5697813A (en) 1980-01-08 1980-01-08 Calibrating method of optical traveling width gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP77380A JPS5697813A (en) 1980-01-08 1980-01-08 Calibrating method of optical traveling width gauge

Publications (1)

Publication Number Publication Date
JPS5697813A true JPS5697813A (en) 1981-08-06

Family

ID=11483009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP77380A Pending JPS5697813A (en) 1980-01-08 1980-01-08 Calibrating method of optical traveling width gauge

Country Status (1)

Country Link
JP (1) JPS5697813A (en)

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