BE415927A - - Google Patents
Info
- Publication number
- BE415927A BE415927A BE415927DA BE415927A BE 415927 A BE415927 A BE 415927A BE 415927D A BE415927D A BE 415927DA BE 415927 A BE415927 A BE 415927A
- Authority
- BE
- Belgium
- Prior art keywords
- rail
- flux
- detection
- crack
- detection device
- Prior art date
Links
- 230000004907 flux Effects 0.000 claims description 52
- 238000001514 detection method Methods 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 28
- 230000005284 excitation Effects 0.000 claims description 27
- 230000005389 magnetism Effects 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 16
- 230000007547 defect Effects 0.000 claims description 15
- 229910052797 bismuth Inorganic materials 0.000 claims description 7
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000005355 Hall effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 230000008859 change Effects 0.000 description 9
- 230000006698 induction Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 244000007853 Sarothamnus scoparius Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- WABPQHHGFIMREM-DBXDQKISSA-N lead-198 Chemical compound [198Pb] WABPQHHGFIMREM-DBXDQKISSA-N 0.000 description 1
- WABPQHHGFIMREM-QQVBLGSISA-N lead-199 Chemical compound [199Pb] WABPQHHGFIMREM-QQVBLGSISA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229940070527 tourmaline Drugs 0.000 description 1
- 229910052613 tourmaline Inorganic materials 0.000 description 1
- 239000011032 tourmaline Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE415927A true BE415927A (OSRAM) |
Family
ID=78964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE415927D BE415927A (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE415927A (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2217688A1 (OSRAM) * | 1973-02-13 | 1974-09-06 | Anglo Amer Corp South Africa |
-
0
- BE BE415927D patent/BE415927A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2217688A1 (OSRAM) * | 1973-02-13 | 1974-09-06 | Anglo Amer Corp South Africa |
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