JPS6454240A - Detection of foreign matter in inner surface of object to be inspected - Google Patents
Detection of foreign matter in inner surface of object to be inspectedInfo
- Publication number
- JPS6454240A JPS6454240A JP62209310A JP20931087A JPS6454240A JP S6454240 A JPS6454240 A JP S6454240A JP 62209310 A JP62209310 A JP 62209310A JP 20931087 A JP20931087 A JP 20931087A JP S6454240 A JPS6454240 A JP S6454240A
- Authority
- JP
- Japan
- Prior art keywords
- foreign matter
- piping
- heating
- infrared
- camera head
- 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
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE:To enable detection of a foreign matter existing on the inner surface of an object to be inspected as infrared image, by heating or cooling the object being inspected from the inner surface thereof to take the outer surface thereof with an infrared camera. CONSTITUTION:An infrared camera head 3 of an infrared video device 2 is directed to the outer surface of a piping 1 as object to be measured from one way. A heating fluid 4 is passed rapidly through the piping 1 to heat it from the inner surface thereof quickly. Then, the quick heating is stopped to take the outer surface of the piping 1 with the camera head 3 immediately after the quick heating or the outer surface thereof is taken with the camera head 3 quickly heating it. Less of heat applied by a heating fluid 4 is transmitted to the outer surface of the pipe at a portion 1b of the pipe wall with a foreign manner 5 on the inner surface thereof than at a portion 1a of the pipe wall without the foreign matter 5 thereon and the existence of the foreign matter 5 on the inner surface thereof appears as temperature difference. This enables projection of the foreign matter 5 in the inner surface of the piping 1 on a monitor TV 6 or the like provided on the body of the infrared video device 2 as infrared image by photographing the outer surface of the piping 1 with the infrared camera head 3 immediately after the quick heating.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62209310A JPS6454240A (en) | 1987-08-25 | 1987-08-25 | Detection of foreign matter in inner surface of object to be inspected |
| US07/227,366 US4872762A (en) | 1987-08-25 | 1988-08-02 | Method and apparatus for detecting defective portion on inner surface of pipe |
| CA000574016A CA1290421C (en) | 1987-08-25 | 1988-08-05 | Method and apparatus for detecting defective portion on inner surface ofpipe |
| EP88112816A EP0304708A3 (en) | 1987-08-25 | 1988-08-05 | Apparatus for detecting defective portion on inner surface of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62209310A JPS6454240A (en) | 1987-08-25 | 1987-08-25 | Detection of foreign matter in inner surface of object to be inspected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6454240A true JPS6454240A (en) | 1989-03-01 |
Family
ID=16570838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62209310A Pending JPS6454240A (en) | 1987-08-25 | 1987-08-25 | Detection of foreign matter in inner surface of object to be inspected |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6454240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020034429A (en) * | 2018-08-30 | 2020-03-05 | 日本アビオニクス株式会社 | Pipe inspection device and method for inspecting pipe |
| WO2020246065A1 (en) * | 2019-06-07 | 2020-12-10 | 三菱重工業株式会社 | Method and device for detecting sludge accumulation spot and program for detecting sludge accumulation spot |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61120950A (en) * | 1984-11-19 | 1986-06-09 | Shimadzu Corp | Inspection for inside of piping |
-
1987
- 1987-08-25 JP JP62209310A patent/JPS6454240A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61120950A (en) * | 1984-11-19 | 1986-06-09 | Shimadzu Corp | Inspection for inside of piping |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020034429A (en) * | 2018-08-30 | 2020-03-05 | 日本アビオニクス株式会社 | Pipe inspection device and method for inspecting pipe |
| WO2020246065A1 (en) * | 2019-06-07 | 2020-12-10 | 三菱重工業株式会社 | Method and device for detecting sludge accumulation spot and program for detecting sludge accumulation spot |
| JP2020201076A (en) * | 2019-06-07 | 2020-12-17 | 三菱重工業株式会社 | Method and system of detecting a sludge deposit, and sludge deposit detection program |
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