FR2439382A1 - Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau - Google Patents

Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau

Info

Publication number
FR2439382A1
FR2439382A1 FR7829791A FR7829791A FR2439382A1 FR 2439382 A1 FR2439382 A1 FR 2439382A1 FR 7829791 A FR7829791 A FR 7829791A FR 7829791 A FR7829791 A FR 7829791A FR 2439382 A1 FR2439382 A1 FR 2439382A1
Authority
FR
France
Prior art keywords
grating
surface area
beams onto
large surface
over large
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
FR7829791A
Other languages
English (en)
Other versions
FR2439382B1 (fr
Inventor
Gael Cadoret
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.)
EXPERIM RECH ETU BATIM CENTRE
Original Assignee
EXPERIM RECH ETU BATIM CENTRE
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 EXPERIM RECH ETU BATIM CENTRE filed Critical EXPERIM RECH ETU BATIM CENTRE
Priority to FR7829791A priority Critical patent/FR2439382A1/fr
Publication of FR2439382A1 publication Critical patent/FR2439382A1/fr
Application granted granted Critical
Publication of FR2439382B1 publication Critical patent/FR2439382B1/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
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/167—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by projecting a pattern on the object

Landscapes

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

Abstract

L'INVENTION CONCERNE LA MESURE DE LA DEFORMATION D'UN SUBJECTILE AU MOYEN D'UN RESEAU. ON APPLIQUE AU SUBJECTILE 1 UN RESEAU A PAS CONSTANT 2. ON SUPERPOSE AU RESEAU UN SYSTEME DE FRANGES D'INTERFERENCE DONT LA PERIODICITE EST EGALE OU MULTIPLE DE CELLE DU RESEAU ET ON FAIT DEFILER A VITESSE CONSTANTE CES FRANGES POUR OBTENIR UN DEFILEMENT DES FRANGES DUES A LA DEFORMATION DU SUBJECTILE, LA VALEUR DE LA DEFORMATION ETANT DONNEE PAR LA DIFFERENCE DE PHASE ENTRE UN POINT DE REFERENCE ET UN POINT ETUDIE. APPLICATION A LA MESURE DES DEFORMATIONS SUR UNE GRANDE SURFACE AVEC UNE GRANDE SENSIBILITE.
FR7829791A 1978-10-19 1978-10-19 Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau Granted FR2439382A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7829791A FR2439382A1 (fr) 1978-10-19 1978-10-19 Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7829791A FR2439382A1 (fr) 1978-10-19 1978-10-19 Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau

Publications (2)

Publication Number Publication Date
FR2439382A1 true FR2439382A1 (fr) 1980-05-16
FR2439382B1 FR2439382B1 (fr) 1981-05-08

Family

ID=9213930

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829791A Granted FR2439382A1 (fr) 1978-10-19 1978-10-19 Procede et dispositif pour mesurer les deformations d'un subjectile au moyen d'un reseau

Country Status (1)

Country Link
FR (1) FR2439382A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1472246A1 (de) * 1965-10-21 1969-08-07 Vickers Ltd Geraet zum Messen der optischen Phasenbeziehung zwischen zwei kohaerenten Lichtbuendeln
FR2016904A1 (fr) * 1968-08-08 1970-05-15 Philips Nv
FR2100855A1 (fr) * 1970-07-02 1972-03-24 Nippon Kogaku Kk

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1472246A1 (de) * 1965-10-21 1969-08-07 Vickers Ltd Geraet zum Messen der optischen Phasenbeziehung zwischen zwei kohaerenten Lichtbuendeln
FR2016904A1 (fr) * 1968-08-08 1970-05-15 Philips Nv
FR2100855A1 (fr) * 1970-07-02 1972-03-24 Nippon Kogaku Kk

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/73 *
EXBK/74 *

Also Published As

Publication number Publication date
FR2439382B1 (fr) 1981-05-08

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Legal Events

Date Code Title Description
ST Notification of lapse