FR820302A - Precision measuring device, especially for measuring very small variations in length - Google Patents

Precision measuring device, especially for measuring very small variations in length

Info

Publication number
FR820302A
FR820302A FR820302DA FR820302A FR 820302 A FR820302 A FR 820302A FR 820302D A FR820302D A FR 820302DA FR 820302 A FR820302 A FR 820302A
Authority
FR
France
Prior art keywords
measuring
length
small variations
measuring device
precision
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)
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.)
Kohle und Eisenforschung GmbH
Original Assignee
Kohle und Eisenforschung 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 Kohle und Eisenforschung GmbH filed Critical Kohle und Eisenforschung GmbH
Application granted granted Critical
Publication of FR820302A publication Critical patent/FR820302A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
FR820302D 1937-03-05 1937-04-06 Precision measuring device, especially for measuring very small variations in length Expired FR820302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE820302X 1937-03-05

Publications (1)

Publication Number Publication Date
FR820302A true FR820302A (en) 1937-11-09

Family

ID=6736725

Family Applications (1)

Application Number Title Priority Date Filing Date
FR820302D Expired FR820302A (en) 1937-03-05 1937-04-06 Precision measuring device, especially for measuring very small variations in length

Country Status (4)

Country Link
AT (1) AT152549B (en)
CH (1) CH194791A (en)
FR (1) FR820302A (en)
GB (1) GB472749A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4315387C2 (en) * 1993-05-08 1995-07-20 Industrieanlagen Betriebsges Measuring device for measuring thermally or mechanically induced strains of a test object

Also Published As

Publication number Publication date
AT152549B (en) 1938-02-25
CH194791A (en) 1937-12-31
GB472749A (en) 1937-09-29

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