JPS5733306A - Surface roughness measuring device - Google Patents

Surface roughness measuring device

Info

Publication number
JPS5733306A
JPS5733306A JP10870280A JP10870280A JPS5733306A JP S5733306 A JPS5733306 A JP S5733306A JP 10870280 A JP10870280 A JP 10870280A JP 10870280 A JP10870280 A JP 10870280A JP S5733306 A JPS5733306 A JP S5733306A
Authority
JP
Japan
Prior art keywords
steel plate
circuit
detected
roughness
moving object
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.)
Granted
Application number
JP10870280A
Other languages
Japanese (ja)
Other versions
JPS6035609B2 (en
Inventor
Kenichi Matsui
Tatsuo Hiroshima
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
Sumitomo Metal 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP10870280A priority Critical patent/JPS6035609B2/en
Publication of JPS5733306A publication Critical patent/JPS5733306A/en
Publication of JPS6035609B2 publication Critical patent/JPS6035609B2/en
Expired 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
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means

Abstract

PURPOSE:To continuously measure the surface roughness of a moving object noncontactually by projecting beam light to the surface of the moving object to be measured, passing the detected output of the reflected light through a band pass filter under sensitivity adjustment then displaying the average value thereof. CONSTITUTION:The beam from a laser 2 is condensed by a lens 3 onto a steel plate ST conveyed on a roller table 6, to <=2mm. beam diameter. The reflected beam is detected with an optical converter, the output thereof is introduced to a sensitivity control circuit 11. The moving position of the steel plate ST is detected with a pulse generator 5, and the output pulses are applied to a counter 17. In the circuit 11, the correction for the fluctuation in macroreflectivity is applied, and only the signal of the frequency band corresponding to the moving speed of the steel plate ST calculated in a speed detecting circuit 18 by the integrated value of the counter 17 is taken out by a band pass filter 12. The average value of roughness is displayed 16 via a roughness detecting circuit 13, an A/D converter 14, and an averaging circuit 15. Thus, the surface roughness of a moving object is continuously measured without contacting.
JP10870280A 1980-08-06 1980-08-06 Surface roughness measuring device Expired JPS6035609B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10870280A JPS6035609B2 (en) 1980-08-06 1980-08-06 Surface roughness measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10870280A JPS6035609B2 (en) 1980-08-06 1980-08-06 Surface roughness measuring device

Publications (2)

Publication Number Publication Date
JPS5733306A true JPS5733306A (en) 1982-02-23
JPS6035609B2 JPS6035609B2 (en) 1985-08-15

Family

ID=14491447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10870280A Expired JPS6035609B2 (en) 1980-08-06 1980-08-06 Surface roughness measuring device

Country Status (1)

Country Link
JP (1) JPS6035609B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620823A1 (en) * 1987-09-17 1989-03-24 Centre Tech Ind Papier DEVICE FOR CONTINUOUSLY DETERMINING A SURFACE CONDITION INDEX OF A MOVING SHEET MATERIAL
JPH0734306U (en) * 1993-11-30 1995-06-23 新日本製鐵株式会社 Stride width measuring device
KR101275793B1 (en) * 2006-08-04 2013-06-18 삼성디스플레이 주식회사 System for measuring surface roughness and mehtod of measuring surface roughness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620823A1 (en) * 1987-09-17 1989-03-24 Centre Tech Ind Papier DEVICE FOR CONTINUOUSLY DETERMINING A SURFACE CONDITION INDEX OF A MOVING SHEET MATERIAL
US4978861A (en) * 1987-09-17 1990-12-18 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Device for the continuous determination of a surface state index for a moving creped sheet
JPH0734306U (en) * 1993-11-30 1995-06-23 新日本製鐵株式会社 Stride width measuring device
KR101275793B1 (en) * 2006-08-04 2013-06-18 삼성디스플레이 주식회사 System for measuring surface roughness and mehtod of measuring surface roughness

Also Published As

Publication number Publication date
JPS6035609B2 (en) 1985-08-15

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