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FR687748A - Comparator - Google Patents

Comparator

Info

Publication number
FR687748A
FR687748A FR687748DA FR687748A FR 687748 A FR687748 A FR 687748A FR 687748D A FR687748D A FR 687748DA FR 687748 A FR687748 A FR 687748A
Authority
FR
France
Prior art keywords
comparator
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Yves-Andre Grimod
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.)
Precision Mecanique SA
Original Assignee
Precision Mecanique SA
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 Precision Mecanique SA filed Critical Precision Mecanique SA
Application granted granted Critical
Publication of FR687748A publication Critical patent/FR687748A/en
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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR687748D 1930-01-06 1930-01-06 Comparator Expired FR687748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR687748T 1930-01-06

Publications (1)

Publication Number Publication Date
FR687748A true FR687748A (en) 1930-08-12

Family

ID=9026317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR687748D Expired FR687748A (en) 1930-01-06 1930-01-06 Comparator

Country Status (1)

Country Link
FR (1) FR687748A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462292A (en) * 1943-08-13 1949-02-22 Rca Corp Light interference distance measuring device having photoelectric means
DE1119557B (en) * 1958-08-30 1961-12-14 Commissariat Energie Atomique Perot-Fabry interferometer with adjustable plate spacing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462292A (en) * 1943-08-13 1949-02-22 Rca Corp Light interference distance measuring device having photoelectric means
DE1119557B (en) * 1958-08-30 1961-12-14 Commissariat Energie Atomique Perot-Fabry interferometer with adjustable plate spacing

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