Walle et al., 2012 - Google Patents
Low frequency induction thermography for the characterization of hidden cracks in ferromagnetic steel componentsWalle et al., 2012
View PDF- Document ID
- 16693618971534116244
- Author
- Walle G
- Netzelmann U
- Stumm C
- Valeske B
- Publication year
- Publication venue
- Proc. 11th Int. Conf. on Quantitative Infrared Thermography (QIRT)
External Links
Snippet
Induction thermography has been extended to the low frequency range of 300 to 2600 Hz. The electromagnetic skin depth is thereby increased in a way that in ferromagnetic steel hidden defects with 1.25 mm coverage could be detected by interaction of the induction …
- 230000001939 inductive effect 0 title abstract description 23
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, electro-chemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
-
- 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, electro-chemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/90—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
- G01N27/9046—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Vrana et al. | Mechanisms and models for crack detection with induction thermography | |
| Wu et al. | A novel TMR-based MFL sensor for steel wire rope inspection using the orthogonal test method | |
| Walle et al. | Thermographic crack detection in ferritic steel components using inductive heating | |
| JP2007187662A (en) | Inspection of non-planar part using multifrequency eddy current with phase analysis | |
| JP2008224494A (en) | Eddy current inspection method, steel pipe inspected by the eddy current inspection method, and eddy current inspection apparatus for carrying out the eddy current inspection method | |
| Walle et al. | Low frequency induction thermography for the characterization of hidden cracks in ferromagnetic steel components | |
| Le et al. | A simulation of magneto-optical eddy current imaging | |
| Underhill et al. | Eddy current analysis of mid-bore and corner cracks in bolt holes | |
| Tsukada et al. | Magnetic nondestructive test for resistance spot welds using magnetic flux penetration and eddy current methods | |
| Kostson et al. | Crack detection using pulsed eddy current stimulated thermography | |
| Matsumoto et al. | Evaluation of chill structure in ductile cast iron by incremental permeability method | |
| Kypris et al. | Mapping stress as a function of depth at the surface of steel structures using a frequency dependent magnetic Barkhausen noise technique | |
| Gotoh et al. | Electromagnetic nondestructive testing of rust region in steel | |
| AU2016345432A1 (en) | Method and devices for observing a magnetic field of a material volume, and use of the device | |
| Ge et al. | Investigation of optimal time-domain feature for non-surface defect detection through a pulsed alternating current field measurement technique | |
| Wang et al. | AC-MFL testing of orthogonal cracks detection of square billet based on the flexible-printed parallel cable magnetizer | |
| JP6551885B2 (en) | Nondestructive inspection device and nondestructive inspection method | |
| Witoś et al. | NDE and SHM of critical parts using magnetic and electromagnetic methods | |
| Zhang et al. | Defect depth effects in Pulsed Eddy Current thermography | |
| Zheng et al. | Numerical simulation of a U-shaped ACFM inducer | |
| Zaini et al. | Backside defect evaluation in carbon steel plate using a hybridized magnetic flux leakage and eddy current technique | |
| Faraj et al. | Investigate the effect of lift-off on eddy current signal for carbon steel plate | |
| Kikuchi et al. | Nondestructive evaluation of material degradation and sub-millimeter sized defect detection in steel using magnetic measurements | |
| Munjal et al. | Effect of hardening on electrical and magnetic properties of C-75 steel and characterization with multi-frequency inductance spectroscopy | |
| Frackowiak et al. | Non-Destructive Damage Detection and Material Characterization of Turbine Components Using Megahertz Range Induction Thermography in Pulsed Mode |