Utilization of Eddy Current Tomography in Automotive Industry

Nowak, Paweł; Nowicki, Michał; Juś, Andrzej; Szewczyk, Roman

doi:10.12693/aphyspola.131.1168

Cited by 11 publications

(5 citation statements)

References 6 publications

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“…This results in new possibilities for detection of discontinuities in structures while performing tests in industrial conditions. Previously reported research [1,3] were conducted on conductive materials with different magnetic permeability. This paper focuses on testing the low-conductive material with high magnetic permeability.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Electromagnetic Tomography for Ferrite Rings Testing

et al. 2018

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Paper presents utilized innovative setup for eddy current tomography and possibility of its utilization in testing oxide materials such as ferrites. Previously reported tests concerned materials with high conductivity which is the most typical usage of eddy current tests. Described tomography setup is designed for testing axisymmetric objects thus typical ferrite ring was selected for exemplary testing. Tests were conducted on ring in original state. Afterwards reference defect was created on element and measurements were repeated. Significant difference between tests results were observed, thus potential for utilization in controlling of ferrite rings manufacturing process was confirmed. Finite element method simulations were applied in order to confirm the measurement results. Calculations were conducted in open-source finite element method software, which solves the Maxwell equations in the A-V form. Modelling results confirm possibility of finite element method-based inverse tomography transformation.

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Section: Introductionmentioning

confidence: 99%

Utilization of Electromagnetic Tomography for Ferrite Rings Testing

et al. 2018

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“…Technologies for the measurement of metal AM and cast components have to fulfil the essential element: the ability to non-invasively and quantitatively evaluate non-line-of-sight [58,79,80] depth penetration materials Ultrasound transmission Metres. Not well understood Down to 0.2 mm [85] Medical and Highly attenuated in air.…”

Section: Comparison Of Xct and Other Non-destructive Techniquesmentioning

confidence: 99%

Review of high energy x-ray computed tomography for non-destructive dimensional metrology of large metallic advanced manufactured components

et al. 2022

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Advanced manufacturing technologies, led by additive manufacturing, have undergone significant growth in recent years. These technologies enable engineers to design parts with reduced weight while maintaining structural and functional integrity. In particular, metal additive manufacturing parts are increasingly used in application areas such as aerospace, where a failure of a mission-critical part can have dire safety consequences. Therefore, the quality of these components is extremely important. A critical aspect of quality control is dimensional evaluation, where measurements provide quantitative results that are traceable to the standard unit of length, the metre. Dimensional measurements allow designers, manufacturers and users to check product conformity against engineering drawings and enable the same quality standard to be used across the supply chain nationally and internationally. However, there is a lack of development of measurement techniques that provide non-destructive dimensional measurements beyond common non-destructive evaluation focused on defect detection. X-ray computed tomography (XCT) technology has great potential to be used as a non-destructive dimensional evaluation technology. However, technology development is behind the demand and growth for advanced manufactured parts. Both the size and the value of advanced manufactured parts have grown significantly in recent years, leading to new requirements of dimensional measurement technologies. This paper is a cross-disciplinary review of state-of-the-art non-destructive dimensional measuring techniques relevant to advanced manufacturing of metallic parts at larger length scales, especially the use of high energy XCT with source energy of greater than 400 kV to address the need in measuring large advanced manufactured parts. Technologies considered as potential high energy x-ray generators include both conventional x-ray tubes, linear accelerators, and alternative technologies such as inverse Compton scattering sources, synchrotron sources and laser-driven plasma sources. Their technology advances and challenges are elaborated on. The paper also outlines the development of XCT for dimensional metrology and future needs.

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“…In spite of the fact that the amplitude of such parallel eddy currents is relatively small, this phenomenon may be practically utilized in the area of non-destructive testing of conductive shafts subjected to torque and shear stresses. Material discontinuities inside of a shaft may influence parallel eddy current distribution, which may be observed utilizing an eddy current tomography [ 50 ]. In such a case, the model presented in Section 2 creates the possibility of quantitative description of eddy current distribution and efficient estimation of a size and character of possible discontinuities in the core of a driving shaft subjected to torque.…”

Section: Implementation Of Proposed Model In Open-source Fem-oriented Softwarementioning

confidence: 99%

A FEM-Based Optimization Method for Driving Frequency of Contactless Magnetoelastic Torque Sensors in Steel Shafts

et al. 2021

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This paper presents a novel finite element method (FEM) of optimization for driving frequency in magneto-mechanical systems using contactless magnetoelastic torque sensors. The optimization technique is based on the generalization of the axial and shear stress dependence of the magnetic permeability tensor. This generalization creates a new possibility for the determination of the torque dependence of a permeability tensor based on measurements of the axial stress on the magnetization curve. Such a possibility of quantitative description of torque dependence of a magnetic permeability tensor has never before been presented. Results from the FEM-based modeling method were validated against a real magnetoelastic torque sensor. The sensitivity characteristics of the model and the real sensor show a maximum using a driving current of similar frequency. Consequently, the proposed method demonstrates the novel possibility of optimizing magnetoelastic sensors for automotive and industrial applications.

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Utilization of Eddy Current Tomography in Automotive Industry

Cited by 11 publications

References 6 publications

Utilization of Electromagnetic Tomography for Ferrite Rings Testing

Utilization of Electromagnetic Tomography for Ferrite Rings Testing

Review of high energy x-ray computed tomography for non-destructive dimensional metrology of large metallic advanced manufactured components

A FEM-Based Optimization Method for Driving Frequency of Contactless Magnetoelastic Torque Sensors in Steel Shafts

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