JPS6461603A - Method and device for detecting camber of beltlike body - Google Patents

Method and device for detecting camber of beltlike body

Info

Publication number
JPS6461603A
JPS6461603A JP21803587A JP21803587A JPS6461603A JP S6461603 A JPS6461603 A JP S6461603A JP 21803587 A JP21803587 A JP 21803587A JP 21803587 A JP21803587 A JP 21803587A JP S6461603 A JPS6461603 A JP S6461603A
Authority
JP
Japan
Prior art keywords
camber
shield
projection
angle
parallel light
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
JP21803587A
Other languages
Japanese (ja)
Inventor
Noriyuki Kawada
Kenichi Yanagi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP21803587A priority Critical patent/JPS6461603A/en
Publication of JPS6461603A publication Critical patent/JPS6461603A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To detect the camber direction of the beltlike body by emitting parallel light beams which differ irradiation angle to the beltlike body, detecting the smallest shield width, and comparing shield width values almost at the irradiation angle when the smallest shield width is obtained. CONSTITUTION:A light emitting device 2 which emits beltlike light and a light receiving device 3 are rotated to vary the angle of projection of a projection parallel light beam 4 to a steel plate 1, and the camber quantity of the steel plate 1 is found at the time of the smallest shield width when the tilt angle of the projection parallel light beam 4 is theta=0. Then when the projection angle is rotated by +theta, shield positions B and C move to B' and C' to widen the shield width. The shield width of downward camber is larger than that of upward camber and when they are rotated by -theta, on the other hand, the shift in the shield position of the upward camber is larger, so the rotating direction of the projection parallel light beam 4 and the extent of the variation of the shield position are detected to detect the camber direction of the steel plate 1.
JP21803587A 1987-09-02 1987-09-02 Method and device for detecting camber of beltlike body Pending JPS6461603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21803587A JPS6461603A (en) 1987-09-02 1987-09-02 Method and device for detecting camber of beltlike body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21803587A JPS6461603A (en) 1987-09-02 1987-09-02 Method and device for detecting camber of beltlike body

Publications (1)

Publication Number Publication Date
JPS6461603A true JPS6461603A (en) 1989-03-08

Family

ID=16713620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21803587A Pending JPS6461603A (en) 1987-09-02 1987-09-02 Method and device for detecting camber of beltlike body

Country Status (1)

Country Link
JP (1) JPS6461603A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072915U (en) * 1993-06-15 1995-01-17 株式会社イナックス Tile warp detector
JP2019117130A (en) * 2017-12-27 2019-07-18 パナソニック デバイスＳｕｎｘ株式会社 Translucent photoelectric sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072915U (en) * 1993-06-15 1995-01-17 株式会社イナックス Tile warp detector
JP2019117130A (en) * 2017-12-27 2019-07-18 パナソニック デバイスＳｕｎｘ株式会社 Translucent photoelectric sensor

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