FR2051899A5 - - Google Patents

Info

Publication number
FR2051899A5
FR2051899A5 FR6922129A FR6922129A FR2051899A5 FR 2051899 A5 FR2051899 A5 FR 2051899A5 FR 6922129 A FR6922129 A FR 6922129A FR 6922129 A FR6922129 A FR 6922129A FR 2051899 A5 FR2051899 A5 FR 2051899A5
Authority
FR
France
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.)
Expired
Application number
FR6922129A
Other languages
French (fr)
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.)
Sud Aviation Societe Nationale de Constructions Aerdnaettiques
Original Assignee
Sud Aviation Societe Nationale de Constructions Aerdnaettiques
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 Sud Aviation Societe Nationale de Constructions Aerdnaettiques filed Critical Sud Aviation Societe Nationale de Constructions Aerdnaettiques
Priority to FR6922129A priority Critical patent/FR2051899A5/fr
Application granted granted Critical
Publication of FR2051899A5 publication Critical patent/FR2051899A5/fr
Expired 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
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/0207—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/60—Reference interferometer, i.e. additional interferometer not interacting with object

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
FR6922129A 1969-07-01 1969-07-01 Expired FR2051899A5 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6922129A FR2051899A5 (enrdf_load_stackoverflow) 1969-07-01 1969-07-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6922129A FR2051899A5 (enrdf_load_stackoverflow) 1969-07-01 1969-07-01

Publications (1)

Publication Number Publication Date
FR2051899A5 true FR2051899A5 (enrdf_load_stackoverflow) 1971-04-09

Family

ID=9036695

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6922129A Expired FR2051899A5 (enrdf_load_stackoverflow) 1969-07-01 1969-07-01

Country Status (1)

Country Link
FR (1) FR2051899A5 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027763A1 (fr) * 1979-10-17 1981-04-29 ANVAR Agence Nationale de Valorisation de la Recherche Procédé et appareil de mesure de distance par interférométrie laser à deux longueurs d'ondes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027763A1 (fr) * 1979-10-17 1981-04-29 ANVAR Agence Nationale de Valorisation de la Recherche Procédé et appareil de mesure de distance par interférométrie laser à deux longueurs d'ondes
FR2468099A1 (fr) * 1979-10-17 1981-04-30 Anvar Procede et appareil d'interferometrie laser a deux longueurs d'ondes
US4492464A (en) * 1979-10-17 1985-01-08 Agence Nationale De Valorisation De La Recherche Apparatus and method for distance measurement by laser interferometry

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Legal Events

Date Code Title Description
ST Notification of lapse