JPS5689043A - Inside surface detecting method of pipe - Google Patents

Inside surface detecting method of pipe

Info

Publication number
JPS5689043A
JPS5689043A JP16643579A JP16643579A JPS5689043A JP S5689043 A JPS5689043 A JP S5689043A JP 16643579 A JP16643579 A JP 16643579A JP 16643579 A JP16643579 A JP 16643579A JP S5689043 A JPS5689043 A JP S5689043A
Authority
JP
Japan
Prior art keywords
pipe
inside surface
pickup device
steel pipe
axial direction
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
JP16643579A
Other languages
Japanese (ja)
Inventor
Hideyuki Hanabusa
Yasuteru Tsushima
Koji Inai
Toshiaki Mihara
Isoshirou Ishida
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.)
HIYUUTEC KK
HIYUUTETSUKU KK
Original Assignee
HIYUUTEC KK
HIYUUTETSUKU 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 HIYUUTEC KK, HIYUUTETSUKU KK filed Critical HIYUUTEC KK
Priority to JP16643579A priority Critical patent/JPS5689043A/en
Publication of JPS5689043A publication Critical patent/JPS5689043A/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 detect the presence or absence of flaws of the inside surface of a pipe surely and easily by housing and disposing an image pickup device in the pipe, moving these relatively in an axial direction, and lighting the inside of the pipe by the light projecting mechanism provided to the image pickup device. CONSTITUTION:A steel pipe 1 is placed horizontally on the guides 2 installed along the axial direction. An impage pickup device 3 is housed in the steel pipe 1 movably along the axial direction. One end of a housing 7 protrudes from one side of the body 4 along the pipe axis direction and a light projecting mechanism 7 is mounted to one end thereof. With such constitution, the entire inside surface of the steel pipe 1 opposing to the light source 11 when, for example, the light projecting mechanism 9 makes 1 turn is picked up by the image pickup device and is displayed. The presence or absence of the inside surface flaws is surely and easily detected by monitoring the inside surface of the steel pipe 1 detected in this way, on a monitor television 19a.
JP16643579A 1979-12-21 1979-12-21 Inside surface detecting method of pipe Pending JPS5689043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16643579A JPS5689043A (en) 1979-12-21 1979-12-21 Inside surface detecting method of pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16643579A JPS5689043A (en) 1979-12-21 1979-12-21 Inside surface detecting method of pipe

Publications (1)

Publication Number Publication Date
JPS5689043A true JPS5689043A (en) 1981-07-20

Family

ID=15831350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16643579A Pending JPS5689043A (en) 1979-12-21 1979-12-21 Inside surface detecting method of pipe

Country Status (1)

Country Link
JP (1) JPS5689043A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227555U (en) * 1988-08-09 1990-02-22
EP0504591A2 (en) * 1991-03-22 1992-09-23 Denso-Chemie Wedekind KG Device for detecting joints, fissures or the like in drain channels

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109392A (en) * 1974-02-08 1975-08-28
JPS54126084A (en) * 1978-03-23 1979-09-29 Hiyuutetsuku Kk Method of detecting surface flaw of continuously cast steel ingot

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109392A (en) * 1974-02-08 1975-08-28
JPS54126084A (en) * 1978-03-23 1979-09-29 Hiyuutetsuku Kk Method of detecting surface flaw of continuously cast steel ingot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0227555U (en) * 1988-08-09 1990-02-22
EP0504591A2 (en) * 1991-03-22 1992-09-23 Denso-Chemie Wedekind KG Device for detecting joints, fissures or the like in drain channels

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