AU2171101A - Detection of irregularities in the thickness of a flexible material strip - Google Patents

Detection of irregularities in the thickness of a flexible material strip

Info

Publication number
AU2171101A
AU2171101A AU21711/01A AU2171101A AU2171101A AU 2171101 A AU2171101 A AU 2171101A AU 21711/01 A AU21711/01 A AU 21711/01A AU 2171101 A AU2171101 A AU 2171101A AU 2171101 A AU2171101 A AU 2171101A
Authority
AU
Australia
Prior art keywords
flexible material
irregularities
wound
gauge
detection
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.)
Abandoned
Application number
AU21711/01A
Inventor
Peter Biele
Mathias Reiter
Harald Schmalfuss
Heinz-Gunter Schwanke
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.)
OPDIX OPTOELECTRONIC GmbH
ThyssenKrupp Steel Europe AG
Original Assignee
OPDIX OPTOELECTRONIC GmbH
ThyssenKrupp Stahl AG
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 OPDIX OPTOELECTRONIC GmbH, ThyssenKrupp Stahl AG filed Critical OPDIX OPTOELECTRONIC GmbH
Publication of AU2171101A publication Critical patent/AU2171101A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/952—Inspecting the exterior surface of cylindrical bodies or wires

Landscapes

  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Paper (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

Method for detecting irregularities in the gauge of a flexible material that can be found over the width of the material and along its length. The material is wound around a winder and while being wound is illuminated using a light bundle that reflects light back so that its reflection point can be spatially resolved and used to detect variations in the winding surface shape. Changes in the winding surface shape are caused by irregularities in the gauge of the wound flexible material. The invention also relates to a device for detecting changes in dimension or gauge of a wound flexible material.
AU21711/01A 1999-12-23 2000-12-21 Detection of irregularities in the thickness of a flexible material strip Abandoned AU2171101A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99125749A EP1111374B1 (en) 1999-12-23 1999-12-23 Detection of non-uniformities of the thickness of a flexible web
EP99125749 1999-12-23
PCT/EP2000/013108 WO2001048464A1 (en) 1999-12-23 2000-12-21 Detection of irregularities in the thickness of a flexible material strip

Publications (1)

Publication Number Publication Date
AU2171101A true AU2171101A (en) 2001-07-09

Family

ID=8239704

Family Applications (1)

Application Number Title Priority Date Filing Date
AU21711/01A Abandoned AU2171101A (en) 1999-12-23 2000-12-21 Detection of irregularities in the thickness of a flexible material strip

Country Status (7)

Country Link
EP (1) EP1111374B1 (en)
AT (1) ATE256862T1 (en)
AU (1) AU2171101A (en)
DE (1) DE59908127D1 (en)
DK (1) DK1111374T3 (en)
ES (1) ES2213972T3 (en)
WO (1) WO2001048464A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163775A1 (en) 2001-12-22 2003-07-03 Roche Diagnostics Gmbh Analysis system for determining an analyte concentration taking into account sample and analyte-independent changes in light intensity
KR100891842B1 (en) * 2007-08-28 2009-04-07 주식회사 포스코 Device for detecting the optic bug of archetypal rod and method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162126A (en) * 1976-12-10 1979-07-24 Hitachi, Ltd. Surface detect test apparatus
US5278635A (en) * 1990-03-28 1994-01-11 Konica Corporation Surface defect detection apparatus
EP0519255A3 (en) * 1991-05-31 1993-07-21 Fuji Photo Film Co., Ltd. Defect inspection system and inspection process

Also Published As

Publication number Publication date
EP1111374A1 (en) 2001-06-27
EP1111374B1 (en) 2003-12-17
DE59908127D1 (en) 2004-01-29
DK1111374T3 (en) 2004-04-05
ES2213972T3 (en) 2004-09-01
ATE256862T1 (en) 2004-01-15
WO2001048464A1 (en) 2001-07-05

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase