JPS6454241A - Detection of existing state of contact piece in internal surface of object to be inspected - Google Patents

Detection of existing state of contact piece in internal surface of object to be inspected

Info

Publication number
JPS6454241A
JPS6454241A JP62209311A JP20931187A JPS6454241A JP S6454241 A JPS6454241 A JP S6454241A JP 62209311 A JP62209311 A JP 62209311A JP 20931187 A JP20931187 A JP 20931187A JP S6454241 A JPS6454241 A JP S6454241A
Authority
JP
Japan
Prior art keywords
inspected
infrared
camera head
pipe
contact piece
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
JP62209311A
Other languages
Japanese (ja)
Inventor
Toshio Koshihara
Rokuro Misawa
Yuzo Sagawa
Kimio Takehara
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP62209311A priority Critical patent/JPS6454241A/en
Priority to US07/229,835 priority patent/US4886370A/en
Priority to CA000574347A priority patent/CA1294018C/en
Priority to EP88113014A priority patent/EP0307619B1/en
Priority to DE8888113014T priority patent/DE3878514T2/en
Publication of JPS6454241A publication Critical patent/JPS6454241A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable detection of an infrared image of a state of existence of a contact piece existing in contact with the internal surface of an object to be inspected, by heating or cooling the object being inspected quickly from the outer surface thereof to take the object with an infrared camera. CONSTITUTION:An infrared camera head 4 of an infrared video device 3 is directed to the outer surface of a packed pipe column 1 as piping to be inspected from one way. Then, the outer surface of the packed pipe column 1 held in a screen of a monitor TV 6 is heated quickly with a heater 7 in a photography range thereof and in the perimeter of the range. Then, immediately after the quick heating, it is taken with the camera head 4 in the photography range heated. As the outer surface of a pipe is deprived of heat from the inner surface side thereof at a portion 1b of the pipe wall with a cavity 8 near the inner surface thereof in contact with a concrete 2 less than at the portion 1a thereof without the cavity 8. A difference in thermal effect appears as temperature difference in the outer surface of the pipe depending on a difference of a packing state - how the concrete 2 contacts the inner surface of the packed pipe column 1. Thus, photographing with the infrared camera head 4 enables projection of the packing state on a monitor TV 6 or the like as infrared image.
JP62209311A 1987-08-25 1987-08-25 Detection of existing state of contact piece in internal surface of object to be inspected Pending JPS6454241A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62209311A JPS6454241A (en) 1987-08-25 1987-08-25 Detection of existing state of contact piece in internal surface of object to be inspected
US07/229,835 US4886370A (en) 1987-08-25 1988-08-08 Method for detecting a state of substance existing in pipe
CA000574347A CA1294018C (en) 1987-08-25 1988-08-10 Method for detecting a state of substance existing in pipe
EP88113014A EP0307619B1 (en) 1987-08-25 1988-08-10 Method for detecting a state of substance existing in pipe
DE8888113014T DE3878514T2 (en) 1987-08-25 1988-08-10 METHOD FOR DETERMINING THE STATE OF A SUBSTANCE IN A TUBE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62209311A JPS6454241A (en) 1987-08-25 1987-08-25 Detection of existing state of contact piece in internal surface of object to be inspected

Publications (1)

Publication Number Publication Date
JPS6454241A true JPS6454241A (en) 1989-03-01

Family

ID=16570854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62209311A Pending JPS6454241A (en) 1987-08-25 1987-08-25 Detection of existing state of contact piece in internal surface of object to be inspected

Country Status (1)

Country Link
JP (1) JPS6454241A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018016983A (en) * 2016-07-26 2018-02-01 公益財団法人鉄道総合技術研究所 Damage estimation method for concrete-filled steel pipe column and damage estimation device for concrete-filled steel pipe column

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889783A (en) * 1972-02-25 1973-11-22
JPS61120950A (en) * 1984-11-19 1986-06-09 Shimadzu Corp Inspection for inside of piping

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889783A (en) * 1972-02-25 1973-11-22
JPS61120950A (en) * 1984-11-19 1986-06-09 Shimadzu Corp Inspection for inside of piping

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018016983A (en) * 2016-07-26 2018-02-01 公益財団法人鉄道総合技術研究所 Damage estimation method for concrete-filled steel pipe column and damage estimation device for concrete-filled steel pipe column

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