JPS55117946A - Flaw detection method of hollow shaft inside surface - Google Patents

Flaw detection method of hollow shaft inside surface

Info

Publication number
JPS55117946A
JPS55117946A JP2628579A JP2628579A JPS55117946A JP S55117946 A JPS55117946 A JP S55117946A JP 2628579 A JP2628579 A JP 2628579A JP 2628579 A JP2628579 A JP 2628579A JP S55117946 A JPS55117946 A JP S55117946A
Authority
JP
Japan
Prior art keywords
hollow shaft
inside surface
detection method
flaw detection
shaft inside
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
JP2628579A
Other languages
Japanese (ja)
Inventor
Takayuki Tani
Masaaki Kawai
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2628579A priority Critical patent/JPS55117946A/en
Publication of JPS55117946A publication Critical patent/JPS55117946A/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

Abstract

PURPOSE:To make it possible to inspect the inside surface of a hollow shaft on the basis of change of the light receiving quantity by irradiating the light beam of a narrow flux onto the hollow shaft inside surface and by receiving the reflected light beam. CONSTITUTION:Optical inspection head 2a is inserted into hollow shaft 10, and simultaneously, inspection light generation unit 3a and signal processing unit 6 are started. The inspection light generated from inspection light generation unit 3a is projected onto the inside surface of hollow shaft 10 through mirror 3b, mirror system 3c, and lens system 3d, and the refelection pattern of the inside surface of hollow shaft 10 at this time is obtained by signal processing unit 6. By this reflection pattern, existence of flaw can be detected.
JP2628579A 1979-03-06 1979-03-06 Flaw detection method of hollow shaft inside surface Pending JPS55117946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2628579A JPS55117946A (en) 1979-03-06 1979-03-06 Flaw detection method of hollow shaft inside surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2628579A JPS55117946A (en) 1979-03-06 1979-03-06 Flaw detection method of hollow shaft inside surface

Publications (1)

Publication Number Publication Date
JPS55117946A true JPS55117946A (en) 1980-09-10

Family

ID=12189013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2628579A Pending JPS55117946A (en) 1979-03-06 1979-03-06 Flaw detection method of hollow shaft inside surface

Country Status (1)

Country Link
JP (1) JPS55117946A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62104149U (en) * 1985-12-20 1987-07-02
EP0267705A2 (en) * 1986-11-10 1988-05-18 Sira Limited Surface inspection or ranging apparatus
FR2688063A1 (en) * 1992-02-28 1993-09-03 Framatome Sa DEVICE FOR CONTROLLING THE INTERNAL SURFACE OF A TUBE, PARTICULARLY OF A STEAM GENERATOR.
KR100803846B1 (en) 2006-07-03 2008-02-14 현대자동차주식회사 Valve body's testing system of Automatic Transmission
CN105572134A (en) * 2015-12-11 2016-05-11 北京工业大学 Line scanning self-template revolving body defect detecting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62104149U (en) * 1985-12-20 1987-07-02
EP0267705A2 (en) * 1986-11-10 1988-05-18 Sira Limited Surface inspection or ranging apparatus
EP0379226A2 (en) * 1986-11-10 1990-07-25 Sira Limited Ranging apparatus
FR2688063A1 (en) * 1992-02-28 1993-09-03 Framatome Sa DEVICE FOR CONTROLLING THE INTERNAL SURFACE OF A TUBE, PARTICULARLY OF A STEAM GENERATOR.
KR100803846B1 (en) 2006-07-03 2008-02-14 현대자동차주식회사 Valve body's testing system of Automatic Transmission
CN105572134A (en) * 2015-12-11 2016-05-11 北京工业大学 Line scanning self-template revolving body defect detecting device

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