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JPS6415642A - Apparatus for inspecting inside of tube - Google Patents

Apparatus for inspecting inside of tube

Info

Publication number
JPS6415642A
JPS6415642A JP17148687A JP17148687A JPS6415642A JP S6415642 A JPS6415642 A JP S6415642A JP 17148687 A JP17148687 A JP 17148687A JP 17148687 A JP17148687 A JP 17148687A JP S6415642 A JPS6415642 A JP S6415642A
Authority
JP
Japan
Prior art keywords
light
projected
tube
inspected
optical image
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.)
Pending
Application number
JP17148687A
Other languages
Japanese (ja)
Inventor
Shinichi Nagai
Yoshiaki Taniguchi
Kazuo Takashima
Keiichi Yamaguchi
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.)
Mitsubishi Electric Corp
Tonen General Sekiyu KK
Japan Petroleum Energy Center JPEC
Original Assignee
Petroleum Energy Center PEC
Mitsubishi Electric Corp
Toa Nenryo Kogyyo KK
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 Petroleum Energy Center PEC, Mitsubishi Electric Corp, Toa Nenryo Kogyyo KK filed Critical Petroleum Energy Center PEC
Priority to JP17148687A priority Critical patent/JPS6415642A/en
Publication of JPS6415642A publication Critical patent/JPS6415642A/en
Pending 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
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores

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)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To obtain highly accurate configuration detecting accuracy, by projecting light on the entire inner surface of a tube to be inspected at the same time by a separately projecting means, receiving the optical image of the inner surface at the same time, thereby eliminating the undetected part. CONSTITUTION:Light from a light source 22 is converted into convergent luminous flux through a projecting lens 23. Then, the light is projected on a conical body, whose surface is a mirror surface. The light is distributed and projected in all directions perpendicular to an axial line. The light is projected on the inner surface of a tube to be inspected P in a thin ring shape. The light, which is reflected by the inner surface of the tube to be inspected P, is bent and returned with a mirror 30. The light is condensed through a lens 26. The optical image of the inner surface is projected and formed on a two-dimensional light receiving part 27. The data of the amount of the light of the optical image, which is received in the two-dimensional light receiving part 27, are written into a main body 2 of an inspecting apparatus through an output circuit 29 and a cable 29a. The data are processed in a processing part 31, and a tubular circle configuration is outputted.
JP17148687A 1987-07-09 1987-07-09 Apparatus for inspecting inside of tube Pending JPS6415642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17148687A JPS6415642A (en) 1987-07-09 1987-07-09 Apparatus for inspecting inside of tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17148687A JPS6415642A (en) 1987-07-09 1987-07-09 Apparatus for inspecting inside of tube

Publications (1)

Publication Number Publication Date
JPS6415642A true JPS6415642A (en) 1989-01-19

Family

ID=15923992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17148687A Pending JPS6415642A (en) 1987-07-09 1987-07-09 Apparatus for inspecting inside of tube

Country Status (1)

Country Link
JP (1) JPS6415642A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009139176A (en) * 2007-12-05 2009-06-25 Nikon Corp Measuring device and its method
US7636204B1 (en) 2007-10-30 2009-12-22 LumenFlow Corp. 360 degree view imaging system
KR101111739B1 (en) * 2010-01-29 2012-02-15 주식회사 풍산 Mold Plate, Mold Plate Assembly, and Mold for Casting
KR101111737B1 (en) * 2010-01-29 2012-02-15 주식회사 풍산 Mold Plate, Mold Plate Assembly, and Mold for Casting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7636204B1 (en) 2007-10-30 2009-12-22 LumenFlow Corp. 360 degree view imaging system
JP2009139176A (en) * 2007-12-05 2009-06-25 Nikon Corp Measuring device and its method
KR101111739B1 (en) * 2010-01-29 2012-02-15 주식회사 풍산 Mold Plate, Mold Plate Assembly, and Mold for Casting
KR101111737B1 (en) * 2010-01-29 2012-02-15 주식회사 풍산 Mold Plate, Mold Plate Assembly, and Mold for Casting

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