FR2414712A1 - Procede de calibrage optique et moyen pour la mise en oeuvre du procede - Google Patents

Procede de calibrage optique et moyen pour la mise en oeuvre du procede

Info

Publication number
FR2414712A1
FR2414712A1 FR7900509A FR7900509A FR2414712A1 FR 2414712 A1 FR2414712 A1 FR 2414712A1 FR 7900509 A FR7900509 A FR 7900509A FR 7900509 A FR7900509 A FR 7900509A FR 2414712 A1 FR2414712 A1 FR 2414712A1
Authority
FR
France
Prior art keywords
points
elevation
articles
production line
heights
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.)
Withdrawn
Application number
FR7900509A
Other languages
English (en)
Inventor
Guy Indebetouw
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.)
Lasag AG
Original Assignee
Lasag 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 Lasag AG filed Critical Lasag AG
Publication of FR2414712A1 publication Critical patent/FR2414712A1/fr
Withdrawn legal-status Critical Current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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
    • G01B11/2504—Calibration devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Procédé et dispositif pour la mise en oeuvre du procédé permettant d'effectuer optiquement des mesures précises et rapides de cotes en élévation. L'on projette sur l'objet de mesure 3D un ensemble de franges régulières F en translation uniforme à vitesse Vx et l'on observe selon un angle alpha Not= n. pi 2 l'image des franges projetées. La mesure du déphasage du signal lumineux réfléchi ou diffusé en deux points du plan image est proportionnel à une variation de hauteur relative des deux points objets correspondants. Le procédé permet de mesurer les cotes absolues ou relatives en élévation en des points critiques de pièces dans une chaîne de fabrication. Détermination du profil d'une pièce.
FR7900509A 1978-01-13 1979-01-10 Procede de calibrage optique et moyen pour la mise en oeuvre du procede Withdrawn FR2414712A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH35078A CH620291A5 (en) 1978-01-13 1978-01-13 Method for optical calibration and means for implementing the method

Publications (1)

Publication Number Publication Date
FR2414712A1 true FR2414712A1 (fr) 1979-08-10

Family

ID=4185014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900509A Withdrawn FR2414712A1 (fr) 1978-01-13 1979-01-10 Procede de calibrage optique et moyen pour la mise en oeuvre du procede

Country Status (3)

Country Link
CH (1) CH620291A5 (fr)
DE (1) DE2900927A1 (fr)
FR (1) FR2414712A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121353A1 (fr) * 1983-03-07 1984-10-10 New York Institute Of Technology Moirétopographie à projection
FR2580066A1 (en) * 1985-04-04 1986-10-10 Baumlin Jean Marie Optical method for three-dimensional measurement by moiré-effect phase modulation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520607A (en) * 1967-10-17 1970-07-14 Hughes Aircraft Co Phase sensing laser contour mapper
DE2227436A1 (de) * 1971-06-08 1973-01-04 Hamamatsu Tv Co Ltd Vorrichtung zur erfassung des porfiles eines werkstueckes
CH567243A5 (en) * 1974-05-03 1975-09-30 Hoffmann La Roche Optical monitoring of shape and position of object - using projection of shadow pattern onto object

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520607A (en) * 1967-10-17 1970-07-14 Hughes Aircraft Co Phase sensing laser contour mapper
DE2227436A1 (de) * 1971-06-08 1973-01-04 Hamamatsu Tv Co Ltd Vorrichtung zur erfassung des porfiles eines werkstueckes
CH567243A5 (en) * 1974-05-03 1975-09-30 Hoffmann La Roche Optical monitoring of shape and position of object - using projection of shadow pattern onto object

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121353A1 (fr) * 1983-03-07 1984-10-10 New York Institute Of Technology Moirétopographie à projection
US4564295A (en) * 1983-03-07 1986-01-14 New York Institute Of Technology Apparatus and method for projection moire topography
FR2580066A1 (en) * 1985-04-04 1986-10-10 Baumlin Jean Marie Optical method for three-dimensional measurement by moiré-effect phase modulation

Also Published As

Publication number Publication date
CH620291A5 (en) 1980-11-14
DE2900927A1 (de) 1979-07-19

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