JPH0522841B2 - - Google Patents
Info
- Publication number
- JPH0522841B2 JPH0522841B2 JP59102047A JP10204784A JPH0522841B2 JP H0522841 B2 JPH0522841 B2 JP H0522841B2 JP 59102047 A JP59102047 A JP 59102047A JP 10204784 A JP10204784 A JP 10204784A JP H0522841 B2 JPH0522841 B2 JP H0522841B2
- Authority
- JP
- Japan
- Prior art keywords
- radiation
- defect
- image
- steel pipe
- reference gauge
- 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.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 claims description 51
- 230000007547 defect Effects 0.000 claims description 43
- 229910001385 heavy metal Inorganic materials 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 35
- 239000010959 steel Substances 0.000 description 35
- 239000003550 marker Substances 0.000 description 18
- 238000005259 measurement Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000013208 measuring procedure Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/18—Investigating the presence of flaws defects or foreign matter
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)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59102047A JPS60244843A (ja) | 1984-05-21 | 1984-05-21 | 放射線透過試験機用基準ゲ−ジ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59102047A JPS60244843A (ja) | 1984-05-21 | 1984-05-21 | 放射線透過試験機用基準ゲ−ジ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60244843A JPS60244843A (ja) | 1985-12-04 |
JPH0522841B2 true JPH0522841B2 (fr) | 1993-03-30 |
Family
ID=14316852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59102047A Granted JPS60244843A (ja) | 1984-05-21 | 1984-05-21 | 放射線透過試験機用基準ゲ−ジ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60244843A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO308630B1 (no) * | 1996-09-19 | 2000-10-02 | Norske Stats Oljeselskap | System for inspeksjon av rørledninger |
-
1984
- 1984-05-21 JP JP59102047A patent/JPS60244843A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60244843A (ja) | 1985-12-04 |
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