FR1367791A - Apparatus for measuring or indicating defects in the flatness of surfaces - Google Patents

Apparatus for measuring or indicating defects in the flatness of surfaces

Info

Publication number
FR1367791A
FR1367791A FR940767A FR940767A FR1367791A FR 1367791 A FR1367791 A FR 1367791A FR 940767 A FR940767 A FR 940767A FR 940767 A FR940767 A FR 940767A FR 1367791 A FR1367791 A FR 1367791A
Authority
FR
France
Prior art keywords
flatness
measuring
indicating defects
defects
indicating
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
FR940767A
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.)
Rank Precision Industries Ltd
Original Assignee
Rank Precision Industries Ltd
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 Rank Precision Industries Ltd filed Critical Rank Precision Industries Ltd
Priority to FR940767A priority Critical patent/FR1367791A/en
Application granted granted Critical
Publication of FR1367791A publication Critical patent/FR1367791A/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
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR940767A 1963-07-08 1963-07-08 Apparatus for measuring or indicating defects in the flatness of surfaces Expired FR1367791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR940767A FR1367791A (en) 1963-07-08 1963-07-08 Apparatus for measuring or indicating defects in the flatness of surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR940767A FR1367791A (en) 1963-07-08 1963-07-08 Apparatus for measuring or indicating defects in the flatness of surfaces

Publications (1)

Publication Number Publication Date
FR1367791A true FR1367791A (en) 1964-07-24

Family

ID=8807839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR940767A Expired FR1367791A (en) 1963-07-08 1963-07-08 Apparatus for measuring or indicating defects in the flatness of surfaces

Country Status (1)

Country Link
FR (1) FR1367791A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471241A (en) * 1965-09-16 1969-10-07 Cincinnati Milling Machine Co Optical aligning device for parts of a machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471241A (en) * 1965-09-16 1969-10-07 Cincinnati Milling Machine Co Optical aligning device for parts of a machine

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