SE9800962L - Device and method of thickness measurement - Google Patents

Device and method of thickness measurement

Info

Publication number
SE9800962L
SE9800962L SE9800962A SE9800962A SE9800962L SE 9800962 L SE9800962 L SE 9800962L SE 9800962 A SE9800962 A SE 9800962A SE 9800962 A SE9800962 A SE 9800962A SE 9800962 L SE9800962 L SE 9800962L
Authority
SE
Sweden
Prior art keywords
sensor
thickness measurement
distance
optical element
arrangement
Prior art date
Application number
SE9800962A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9800962D0 (en
SE514004C2 (en
Inventor
Karl-Erik Morander
Original Assignee
Precimeter Ab
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 filed Critical Precimeter Ab
Priority to SE9800962A priority Critical patent/SE514004C2/en
Publication of SE9800962D0 publication Critical patent/SE9800962D0/en
Priority to AU31786/99A priority patent/AU3178699A/en
Priority to EP99913795A priority patent/EP1070228A1/en
Priority to PCT/SE1999/000410 priority patent/WO1999049278A1/en
Publication of SE9800962L publication Critical patent/SE9800962L/en
Publication of SE514004C2 publication Critical patent/SE514004C2/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).
SE9800962A 1998-03-20 1998-03-20 Thickness measurement with a detector by illuminating two surfaces of an object, device, apparatus and method SE514004C2 (en)

Priority Applications (4)

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
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
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

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
SE9800962D0 SE9800962D0 (en) 1998-03-20
SE9800962L true SE9800962L (en) 1999-09-21
SE514004C2 SE514004C2 (en) 2000-12-11

Family

ID=20410649

Family Applications (1)

Application Number Title Priority Date Filing Date
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

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
WO1999049278A8 (en) 2000-03-16
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

Similar Documents

Publication Publication Date Title
NZ506914A (en) Optical translation measurement
DE69926908D1 (en) SYSTEM FOR CONTRASTING AND DECORATIVE IMAGE CAPTION
DE69719238D1 (en) Optical device for measuring scattered light
DK1376504T3 (en) Smoke detector with scattered light
EP0867775A3 (en) Proximity exposure device with distance adjustment device
HUP0100133A2 (en) Apparatus and method for container sealing surface area inspection
DE50015209D1 (en) Optical position measuring device
WO2003087945A3 (en) Interferometric measuring device and projection illumination installation comprising one such measuring device
WO2000077491A3 (en) Fiber optic multitasking probe
WO2002097878A3 (en) Method and apparatus for determining process layer conformality
DE59609787D1 (en) DEVICE FOR MEASURING THE THICKNESS OF TRANSPARENT OBJECTS
EP0762077A3 (en) System for measuring film thickness
DE69625727D1 (en) Optical distance measurement
SE9400849D0 (en) Device and method for detecting defects in wood
SE9701911D0 (en) Method and device for contactless measurement of movement
SE0302603L (en) System and method of imaging the characteristics of an object
SE9702834D0 (en) Device for color measurement
SE0004643D0 (en) Method and device for determining fiber orientation in a paper sample
IT1292544B1 (en) DEVICE FOR MEASURING THE DIMENSIONS OF A VERY LONGITUDINALLY EXTENDED OBJECT WITH A CURVED CONTOUR CROSS SECTION.
FR2741952B1 (en) OPTO-ELECTRONIC POINT COUNTER USING OPTICAL MEASUREMENT EQUIPMENT
SE9800962L (en) Device and method of thickness measurement
DE4391183T1 (en) Optical device for flatness measurement
DE502004010977D1 (en) COORDINATE MEASURING DEVICE
ATE360798T1 (en) DEVICE FOR MEASURING AN OPTICAL PATH LENGTH CHANGE
JPS6461622A (en) Temperature measuring instrument

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 9800962-4

Format of ref document f/p: F