FR2363778A1 - Optical measurement of body section shape - utilises reflected luminous grid pattern from body for electronically quantifying results - Google Patents

Optical measurement of body section shape - utilises reflected luminous grid pattern from body for electronically quantifying results

Info

Publication number
FR2363778A1
FR2363778A1 FR7626205A FR7626205A FR2363778A1 FR 2363778 A1 FR2363778 A1 FR 2363778A1 FR 7626205 A FR7626205 A FR 7626205A FR 7626205 A FR7626205 A FR 7626205A FR 2363778 A1 FR2363778 A1 FR 2363778A1
Authority
FR
France
Prior art keywords
body section
grid pattern
utilises
electronically
optical measurement
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
FR7626205A
Other languages
French (fr)
Other versions
FR2363778B3 (en
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.)
BETR FORSCH INST ANGEW FORSCH
BFI VDEH Institut fuer Angewandte Forschung GmbH
Original Assignee
BETR FORSCH INST ANGEW FORSCH
BFI VDEH Institut fuer Angewandte Forschung GmbH
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 BETR FORSCH INST ANGEW FORSCH, BFI VDEH Institut fuer Angewandte Forschung GmbH filed Critical BETR FORSCH INST ANGEW FORSCH
Priority to FR7626205A priority Critical patent/FR2363778A1/en
Publication of FR2363778A1 publication Critical patent/FR2363778A1/en
Application granted granted Critical
Publication of FR2363778B3 publication Critical patent/FR2363778B3/fr
Granted 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
    • G01B11/2441—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using interferometry

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The shape of a body section is determined by an optical method thus eliminating problems of making measurement by contact. Luminous radiation is used to illuminate the body section with a grid pattern and the reflected image is quantified opto-electronically. Radiation from a laser source is enlarged by a telescope for application to an inferometer. The object for measurement is located in the inferometer output for illumination by incident grid lines from two opposing directions. An optical detector system comprises a rotating mirror reflecting light from the surface fo the object through a converging lens and optical slit onto a photodetector. A second detector system is located opposite the first and their outputs are processed electronically.
FR7626205A 1976-08-31 1976-08-31 Optical measurement of body section shape - utilises reflected luminous grid pattern from body for electronically quantifying results Granted FR2363778A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7626205A FR2363778A1 (en) 1976-08-31 1976-08-31 Optical measurement of body section shape - utilises reflected luminous grid pattern from body for electronically quantifying results

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7626205A FR2363778A1 (en) 1976-08-31 1976-08-31 Optical measurement of body section shape - utilises reflected luminous grid pattern from body for electronically quantifying results

Publications (2)

Publication Number Publication Date
FR2363778A1 true FR2363778A1 (en) 1978-03-31
FR2363778B3 FR2363778B3 (en) 1979-05-25

Family

ID=9177256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626205A Granted FR2363778A1 (en) 1976-08-31 1976-08-31 Optical measurement of body section shape - utilises reflected luminous grid pattern from body for electronically quantifying results

Country Status (1)

Country Link
FR (1) FR2363778A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595815A1 (en) * 1986-03-17 1987-09-18 Clecim Sa Method and device for locating surface evenness defects in a metal sheet
FR2615343A1 (en) * 1987-05-15 1988-11-18 Telsa Inf METHOD AND APPARATUS FOR VIDEOGRAMMETRY

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595815A1 (en) * 1986-03-17 1987-09-18 Clecim Sa Method and device for locating surface evenness defects in a metal sheet
FR2615343A1 (en) * 1987-05-15 1988-11-18 Telsa Inf METHOD AND APPARATUS FOR VIDEOGRAMMETRY
EP0363542A1 (en) * 1987-05-15 1990-04-18 TELSA INFORMATIQUE Société Anonyme Videogrammetic device and process

Also Published As

Publication number Publication date
FR2363778B3 (en) 1979-05-25

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Legal Events

Date Code Title Description
ST Notification of lapse