WO1999049278A8 - An arrangement and a method for gauging a distance between surfaces of an object - Google Patents

An arrangement and a method for gauging a distance between surfaces of an object

Info

Publication number
WO1999049278A8
WO1999049278A8 PCT/SE1999/000410 SE9900410W WO9949278A8 WO 1999049278 A8 WO1999049278 A8 WO 1999049278A8 SE 9900410 W SE9900410 W SE 9900410W WO 9949278 A8 WO9949278 A8 WO 9949278A8
Authority
WO
WIPO (PCT)
Prior art keywords
distance
arrangement
gauging
sensor
optical element
Prior art date
Application number
PCT/SE1999/000410
Other languages
French (fr)
Other versions
WO1999049278A1 (en
Inventor
Karl-Erik Morander
Original Assignee
Precimeter Ab
Morander Karl Erik
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 Precimeter Ab, Morander Karl Erik filed Critical Precimeter Ab
Priority to AU31786/99A priority Critical patent/AU3178699A/en
Priority to EP99913795A priority patent/EP1070228A1/en
Publication of WO1999049278A1 publication Critical patent/WO1999049278A1/en
Publication of WO1999049278A8 publication Critical patent/WO1999049278A8/en

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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

The present invention relates to a method and an arrangement for gauging a distance between at least two surfaces of an object (11), the arrangement including illumination means (15, 16, 20) arranged to illuminate each of said at least two surfaces, at least one optical element (17, 29, 30) arranged to project reflections from each surface onto a sensor (18). The optical element (17, 29, 30) is arranged in a section in front of said sensor to direct scattered illumination rays (37), directly incident from said at least two surfaces onto said sensor and generate a representation of the distance between said at least two surfaces of the object (11).
PCT/SE1999/000410 1998-03-20 1999-03-17 An arrangement and a method for gauging a distance between surfaces of an object WO1999049278A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU31786/99A AU3178699A (en) 1998-03-20 1999-03-17 An arrangement and a method for gauging a distance between surfaces of an object
EP99913795A EP1070228A1 (en) 1998-03-20 1999-03-17 An arrangement and a method for gauging a distance between surfaces of an object

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9800962A SE514004C2 (en) 1998-03-20 1998-03-20 Thickness measurement with a detector by illuminating two surfaces of an object, device, apparatus and method
SE9800962-4 1998-03-20

Publications (2)

Publication Number Publication Date
WO1999049278A1 WO1999049278A1 (en) 1999-09-30
WO1999049278A8 true WO1999049278A8 (en) 2000-03-16

Family

ID=20410649

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1999/000410 WO1999049278A1 (en) 1998-03-20 1999-03-17 An arrangement and a method for gauging a distance between surfaces of an object

Country Status (4)

Country Link
EP (1) EP1070228A1 (en)
AU (1) AU3178699A (en)
SE (1) SE514004C2 (en)
WO (1) WO1999049278A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501506A1 (en) * 2005-01-20 2006-09-15 Voestalpine Mechatronics Gmbh METHOD AND DEVICE FOR CONTACTLESS MEASUREMENT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1340741A (en) * 1971-03-15 1974-01-30 Vnii Pk I Metall Maschino Method for gauging the distance between two opposite surface areas of a moving rolled product and apparatus for carrying out the method
EP0179935B1 (en) * 1984-10-31 1988-05-18 Ibm Deutschland Gmbh Interferometric thickness analyzer and measuring method
NO178909C (en) * 1993-04-19 1996-06-26 Toni Rydningen Measuring device
SE503513C2 (en) * 1994-11-17 1996-07-01 Ericsson Telefon Ab L M Method and apparatus for determining the thickness and concentricity of a layer applied to a cylindrical body

Also Published As

Publication number Publication date
SE9800962D0 (en) 1998-03-20
WO1999049278A1 (en) 1999-09-30
AU3178699A (en) 1999-10-18
EP1070228A1 (en) 2001-01-24
SE514004C2 (en) 2000-12-11
SE9800962L (en) 1999-09-21

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