JPS576306A - Method and apparatus for inspection of edge boundary part of circular member - Google Patents

Method and apparatus for inspection of edge boundary part of circular member

Info

Publication number
JPS576306A
JPS576306A JP7983480A JP7983480A JPS576306A JP S576306 A JPS576306 A JP S576306A JP 7983480 A JP7983480 A JP 7983480A JP 7983480 A JP7983480 A JP 7983480A JP S576306 A JPS576306 A JP S576306A
Authority
JP
Japan
Prior art keywords
boundary
failures
boundary part
circular member
ridge
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
JP7983480A
Other languages
Japanese (ja)
Other versions
JPS637324B2 (en
Inventor
Hiroshi Ito
Mitsuru Ezaki
Hiroshi Kuno
Kanji Kitou
Morihiro Matsuda
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.)
Toyota Central R&D Labs Inc
Original Assignee
Toyota Central R&D Labs Inc
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 Toyota Central R&D Labs Inc filed Critical Toyota Central R&D Labs Inc
Priority to JP7983480A priority Critical patent/JPS576306A/en
Publication of JPS576306A publication Critical patent/JPS576306A/en
Publication of JPS637324B2 publication Critical patent/JPS637324B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To enable sure noncontacting detection for failures of edge boundary part, by irradiating a slit light flux to the edge boundary of a circular member in rotation, receiving the transmitted light and converting it into an electric signal, and processing it electrically. CONSTITUTION:While rotating a circular member, a slit light flux is irradiated on the ridge boundary part, the transmitted light is received and it is converted into an electric signal, and it is processed electrically, allowing to pick up the signal corresponding to failures of the ridge boundary part. For example, to a ridge boundary part 10c of a circular member 10 placed on a rotating stand 12, a slit light flux is irradiated by using a generating device 26, a boundary signal corresponding to dark and light boundary position produced on a photoelectric detecting array 32 is produced at a circuit 36 with the transmitted light. Each boundary signal obtained while the rotating stand rotates once, is compared at a circuit 24 to detect the production of failures. Thus, automatic inspection is made without contacting and optically, allowing to inspect fine failures surely.
JP7983480A 1980-06-13 1980-06-13 Method and apparatus for inspection of edge boundary part of circular member Granted JPS576306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7983480A JPS576306A (en) 1980-06-13 1980-06-13 Method and apparatus for inspection of edge boundary part of circular member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7983480A JPS576306A (en) 1980-06-13 1980-06-13 Method and apparatus for inspection of edge boundary part of circular member

Publications (2)

Publication Number Publication Date
JPS576306A true JPS576306A (en) 1982-01-13
JPS637324B2 JPS637324B2 (en) 1988-02-16

Family

ID=13701233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7983480A Granted JPS576306A (en) 1980-06-13 1980-06-13 Method and apparatus for inspection of edge boundary part of circular member

Country Status (1)

Country Link
JP (1) JPS576306A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004347A (en) * 1988-11-21 1991-04-02 Heuft-Qualiplus B.V. Method and an apparatus for inspecting the edge of a lid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004347A (en) * 1988-11-21 1991-04-02 Heuft-Qualiplus B.V. Method and an apparatus for inspecting the edge of a lid

Also Published As

Publication number Publication date
JPS637324B2 (en) 1988-02-16

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