Hyperbolic Model Based Data Evaluation for Magnetic NDE Measurements

Lift Off ◽

In this paper a new data evaluation technique is presented for non-destructive magnetic measurements. This method is based on the multiphase hyperbolic model of magnetization and it is called model based data evaluation (MBDE) technique. The MBDE method allows us to separate the magnetic contribution of the magnetizing yoke from the measured magnetization curves. Therefore the determined magnetic properties of the tested sample are independent of the parameters of the applied magnetic yoke and the lift-off. The proposed method could become a useful tool in magnetic non-destructive evaluation (NDE).

Magnetic Measurement and Model Based Characterisation of Phase Transformation in Lean Duplex Stainless Steel

Materials Science Forum ◽

10.4028/www.scientific.net/msf.721.96 ◽

2012 ◽

Vol 721 ◽

pp. 96-101

Author(s):

István Mészáros

Keyword(s):

Stainless Steel ◽

Phase Transformation ◽

Duplex Stainless Steel ◽

Magnetic Measurements ◽

Magnetic Measurement ◽

Data Evaluation ◽

Magnetic Contribution ◽

Hyperbolic Model ◽

Lean Duplex Stainless Steel ◽

Model Based

In the present work the microstructure and the strain induced phase transformation of a Lean Duplex Stainless Steel (LDSS) were studied. Sheet samples were cold rolled, the number of samples was nine; the applied deformation was up to 80%. The magnetization curves were measured by a single sheet tester-type magnetic property analyzer. The series of symmetrical minor hysteresis loops and the saturation loop were measured. Our novel data evaluation technique was applied for data evaluation of the magnetic measurements. This method is based on the multiphase-hyperbolic model of magnetization and it is called model based data evaluation (MBDE) technique. This method allowed us to separate the magnetic contribution of ferrite and martensite phases in the tested LDSS. Several new details of the kinetics of austenite→martensite strain induced phase transformation were clarified.

2420 Development of High-Sensitive Non-Destructive Evaluation Technique of Degraded Thermal Barrier Coatings by Using Microwave

The proceedings of the JSME annual meeting ◽

10.1299/jsmemecjo.2007.1.0_415 ◽

2007 ◽

Vol 2007.1 (0) ◽

pp. 415-416

Author(s):

Mehdi SAYAR ◽

Kazuhiro OGAWA ◽

Tetsuo SHOJI

Keyword(s):

Thermal Barrier Coatings ◽

Thermal Barrier ◽

Evaluation Technique ◽

Barrier Coatings ◽

2016 Joint IEEE International Symposium on the Applications of Ferroelectrics, European Conference on Application of Polar Dielectrics, and Piezoelectric Force Microscopy Workshop (ISAF/ECAPD/PFM) ◽

Non-destructive evaluation technique of surface-mounted capacitor based on photothermal frequency modulation technique

10.1109/isaf.2016.7578086 ◽

2016 ◽

Author(s):

A. Yarai ◽

Y. Sato

Keyword(s):

Frequency Modulation ◽

Evaluation Technique ◽

Modulation Technique ◽

Optimisation of amplitude distribution of magnetic Barkhausen noise

Journal of Electrical Engineering ◽

10.1515/jee-2017-0071 ◽

2017 ◽

Vol 68 (5) ◽

pp. 384-389

Author(s):

Jozef Pal’a ◽

Vladimír Jančárik

Keyword(s):

Measurement Method ◽

Measurement Accuracy ◽

Amplitude Distribution ◽

Barkhausen Noise ◽

Significant Issue ◽

Magnetic Barkhausen Noise ◽

Treatment Conditions ◽

Lift Off ◽

Abstract The magnetic Barkhausen noise (MBN) measurement method is a widely used non-destructive evaluation technique used for inspection of ferromagnetic materials. Besides other influences, the excitation yoke lift-off is a significant issue of this method deteriorating the measurement accuracy. In this paper, the lift-off effect is analysed mainly on grain oriented Fe-3%Si steel subjected to various heat treatment conditions. Based on investigation of relationship between the amplitude distribution of MBN and lift-off, an approach to suppress the lift-off effect is proposed. Proposed approach utilizes the digital feedback optimising the measurement based on the amplitude distribution of MBN. The results demonstrated that the approach can highly suppress the lift-off effect up to 2 mm.

Evaluation of Modulus of Elasticity of Laminated Strand Lumber by Non-Destructive Evaluation Technique

BioResources ◽

10.15376/biores.11.1.626-633 ◽

2015 ◽

Vol 11 (1) ◽

Author(s):

Zhiqiang Wang ◽

Jianhui Zhou ◽

Meng Gong ◽

Ying Hei Chui ◽

Xiaoning Lu

Keyword(s):

Modulus Of Elasticity ◽

Evaluation Technique ◽

A Heuristic Non Destructive Evaluation Technique For Rebar Corrosion of Marine Structures based on the synergy of Infrared Thermography, Signal and Image Processing

10.21611/qirt.2015.0111 ◽

2015 ◽

Author(s):

G. Kannan ◽

N. Manoharan ◽

B. Venkataraman

Keyword(s):

Image Processing ◽

Infrared Thermography ◽

Evaluation Technique ◽

Marine Structures ◽

Signal And Image Processing ◽

Rebar Corrosion ◽

ISTFA 2019: Conference Proceedings from the 45th International Symposium for Testing and Failure Analysis ◽

X-Ray Computed Tomography: A Potentially Destructive “Non-Destructive Evaluation” Technique

10.31399/asm.cp.istfa2019p0519 ◽

2019 ◽

Author(s):

Ryan Ross ◽

Gil Garteiz ◽

Stephanie Zajac

Keyword(s):

Computed Tomography ◽

Evaluation Technique ◽

Total Ionizing Dose ◽

X Ray ◽

X Ray Computed ◽

Flight Hardware ◽

Abstract Characterization of Computed Tomography X-Ray ionizing dose will be presented along with a methodology to protect space bound flight hardware from exceeding total ionizing dose (TID) budget prior to mission completion.