JPS56155136A - Measuring device for location of edge of metallic beltlike body - Google Patents

Measuring device for location of edge of metallic beltlike body

Info

Publication number
JPS56155136A
JPS56155136A JP5680580A JP5680580A JPS56155136A JP S56155136 A JPS56155136 A JP S56155136A JP 5680580 A JP5680580 A JP 5680580A JP 5680580 A JP5680580 A JP 5680580A JP S56155136 A JPS56155136 A JP S56155136A
Authority
JP
Japan
Prior art keywords
location
metallic
edge
mirror
beltlike body
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
JP5680580A
Other languages
Japanese (ja)
Inventor
Akinobu Ogasawara
Yasushi Kobayashi
Takatoshi Tsuchie
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 JP5680580A priority Critical patent/JPS56155136A/en
Publication of JPS56155136A publication Critical patent/JPS56155136A/en
Pending legal-status Critical Current

Links

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

PURPOSE: To measure a location of an edge accurately by a method wherein a rotatory polyhedral mirror is mounted at a location of the focus of a parabolic mirror, the luminous energy of a metallic beltlike body is scanned, and converted into electric signals by means of an infrared sensor, and the signals are detected and measured by means of a signal processor.
CONSTITUTION: A parabolic mirror 2 is installed to the upper or lower section of a metallic beltlike body 1 while a rotatory polyhedral mirror 3 is set up at a location of the focus thereof. The luminous energy of the metallic beltlike body 1 is inputted to an infrared sensor 4 through the parabolic mirror 2 and a rotatory polyhedral mirror 3, and value is converted into electric signals and the location of an edge of the metallic beltlike body 1 is detected and measured by means of a signal processor 6 by the reference signals of a reference location detector 5 separately installed. An error is not formed by the upper and lower motions of the metallic beltlike body 1 in light-energy signals which the polyhedral mirror 3 scans because the rotary polyhedral mirror 3 is positioned at the location of the focus of the parabolic mirror 2 at that time. Thus, the location of the edge can be measured in high accuracy.
COPYRIGHT: (C)1981,JPO&Japio
JP5680580A 1980-04-28 1980-04-28 Measuring device for location of edge of metallic beltlike body Pending JPS56155136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5680580A JPS56155136A (en) 1980-04-28 1980-04-28 Measuring device for location of edge of metallic beltlike body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5680580A JPS56155136A (en) 1980-04-28 1980-04-28 Measuring device for location of edge of metallic beltlike body

Publications (1)

Publication Number Publication Date
JPS56155136A true JPS56155136A (en) 1981-12-01

Family

ID=13037604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5680580A Pending JPS56155136A (en) 1980-04-28 1980-04-28 Measuring device for location of edge of metallic beltlike body

Country Status (1)

Country Link
JP (1) JPS56155136A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7177584B2 (en) 2004-05-10 2007-02-13 Hewlett-Packard Development Company, L.P. Determining a media feature

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271059A (en) * 1975-12-08 1977-06-14 Butler Automatic Inc Web registering apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271059A (en) * 1975-12-08 1977-06-14 Butler Automatic Inc Web registering apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7177584B2 (en) 2004-05-10 2007-02-13 Hewlett-Packard Development Company, L.P. Determining a media feature

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