Characterization of Permanent Magnet Magnetization

Arbenz, Laure; Chadebec, Olivier; Espanet, Christophe; Youness, Rtimi,; Cauffet, Gilles

doi:10.1109/tmag.2017.2692391

Cited by 16 publications

(8 citation statements)

References 8 publications

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“…This method was introduced in numerical micromagnetics by LaBonte [[ 58 ] and Schabes and Aharoni [ 59 ] .” The method based on the concepts of scalar potential and effective magnetic charges is widely used in modern literature, see, for example, Refs. [60–66].…”

Section: Magnetostatics: a Comparison With The Classical Approachmentioning

confidence: 99%

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Modeling of physical fields by means of the Cosserat continuum

Иванова

2022

Z Angew Math Mech

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We consider a special type Cosserat continuum and suggest analogies between quantities characterizing the stress-strain state of the continuum and quantities characterizing physical processes. Such an approach provides us with the ability to derive equations describing electricity, magnetism, and other physical phenomena. This study continues the line of our earlier research. In the present paper, we obtain equations that can be treated as a generalization of Maxwell's equations. The main difference between the proposed equations and classical Maxwell's equations is in the description of magnetic phenomena. In particular, we introduce the concept of a magnetic charge vector and show that this quantity, like the electric charge, satisfies the conservation law and the Gauss law. We are convinced that the magnetic charge vector is the most appropriate physical quantity to characterize the state of a magnetized body. In addition to modeling the electromagnetic field, we make assumptions about how the proposed model can describe the field corresponding to the strong interaction.

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Section: Magnetostatics: a Comparison With The Classical Approachmentioning

confidence: 99%

“…The method based on the concepts of scalar potential and effective magnetic charges is widely used in modern literature, see, for example, Refs. [60][61][62][63][64][65][66].…”

Section: Magnetostatics: a Comparison With The Classical Approachmentioning

confidence: 99%

Modeling of physical fields by means of the Cosserat continuum

Иванова

2022

Z Angew Math Mech

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“…Many works dealing with magnetization identification can be found in the literature aiming to reconstruct magnetization of magnetic rollers [1], electrical machine magnets [2] and also navy ship hulls [3,4,5,6]. In most of these works, the forward problem is formulated thanks to an integral relation linking the magnetization to the magnetic field produced in air on an external sensor.…”

Section: Introductionmentioning

confidence: 99%

“…In order to interpolate the magnetization, 0-order vector shape functions can be used like in the well-known Magnetic Moments Method (MMM). With such an interpolation, magnetization of volume regions has been reconstructed for 2D [1] or 3D [2] problems. For ferromagnetic sheet, a similar approach has been extended to the identification of the tangential components of the magnetization [4].…”

Section: Introductionmentioning

confidence: 99%

A flux-based inverse integral formulation for steel shell magnetization identification

Chavin-Collin

Bannwarth

Cavallera

et al. 2021

Journal of Magnetism and Magnetic Materials

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A new algorithm for the identification of the permanent magnetization of ferromagnetic sheets is proposed. From magnetic measurements close to the ferromagnetic material, the magnetization distribution is reconstructed. The forward problem involves an integral formulation based on the interpolation of the flux density in the sheet, leading to a linear matrix system linking the magnetization to the measurements. The inverse problem is solved with a balanced singular values decomposition in order to stabilize the solution. The effectiveness of the method is demonstrated using both a numerical test case and an experimental validation.

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“…This solution improved the traceability of single TMSBs and enabled to compensate variations of the magnetic properties by selective TMSB assembly. Arbenz et al [ 8 ] presented an approach to deduce the magnetization of TMSB. By using the Hall sensor to scan the magnetic field, the TMSB magnetization could be inferred.…”

Section: Introductionmentioning

confidence: 99%

Kuhn–Munkres Algorithm-Based Matching Method and Automatic Device for Tiny Magnetic Steel Pair

Yuan

Wang

et al. 2021

Micromachines

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The tiny magnetic steel pair (TMSP), composed by two tiny magnetic steel blocks (TMSBs), is critical for some precision instruments. Incorrect matching of TMSP may result in insufficient instrument performance. Herein, the matching method of TMSP based on the Kuhn–Munkres algorithm is proposed. Further, an automatic TMSP matching device is developed. Especially, an ingenious clamp for multiple constraints of TMSB is presented and a visual/magnetism/force hybrid control strategy is realized for the safe and efficient manipulation of TMSBs in a magnetic environment. Moreover, with the TMSBs of a pendulum accelerometer, the matching experiments are conducted to validate the comprehensive performance. The result of the numerical experiment shows that the Kuhn–Munkres algorithm-based method is stable and efficient. The results of measurement and TMSP matching experiments show that the device has good repeatability (<1 mT) and practicability. The proposed matching method has great application prospect in various matching and microassembly of TMSPs.

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Characterization of Permanent Magnet Magnetization

Cited by 16 publications

References 8 publications

Modeling of physical fields by means of the Cosserat continuum

Modeling of physical fields by means of the Cosserat continuum

A flux-based inverse integral formulation for steel shell magnetization identification

Kuhn–Munkres Algorithm-Based Matching Method and Automatic Device for Tiny Magnetic Steel Pair

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