An attempt of accuracy assessment of the hysteresis loop and power loss in magnetic materials during control measurements

Gryś, S.; Najgebauer, Mariusz

doi:10.1016/j.measurement.2021.108962

Cited by 10 publications

(6 citation statements)

References 10 publications

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“…When testing the magnetic properties of soft magnetic materials, the analog impact method is usually used in an annular sample [29,30]. A certain MF strength is provided through the excitation coil.…”

Section: Principle Of Hysteresis Loop Measurement and Ja Modelmentioning

confidence: 99%

Measurement and analysis of an optimized Jiles–Atherton model considering the influence of temperature applied in magnetic shielding devices

Sun

Ren

Zhou

2023

J. Phys. D: Appl. Phys.

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The magnetic shielding devices works at different temperatures due to the influence of gas chamber and environmental temperature in the application of ultra-highly sensitive spin exchange relaxation free (SERF) magnetometer. To accurately evaluate the residual magnetic field of magnetic shielding device at different temperatures, it is necessary to build the magnetization model considering temperature. However, the modelling of permalloy’s magnetization properties and the measurement of residual magnetic field in magnetic shielding devices at different temperatures haven’t been considered. In this paper, the optimized Jiles-Atherton model of permalloy considering temperature is constructed in which parameters are extracted by particle swarm optimization algorithm. To further verify the effectiveness of the model in the magnetic shielding device, it is applied to the residual magnetic field simulation of magnetic shielding devices and verified by measurement. The optimized Jiles-Atherton model considering temperature improves the calculation accuracy of magnetic shielding devices, which is of great significance for the application of ultra-highly sensitive SERF magnetometers.

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Section: Principle Of Hysteresis Loop Measurement and Ja Modelmentioning

confidence: 99%

Measurement and analysis of an optimized Jiles–Atherton model considering the influence of temperature applied in magnetic shielding devices

Sun

Ren

Zhou

2023

J. Phys. D: Appl. Phys.

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“…Moving the input signal to the linear region of the hysteretic loop by adding a constant DC current is the simplest method to solve this problem, but with the disadvantage of adding noise, see [35]. Thus, the input voltage must be modified by a constant D > 0 in (5) and (6) to diminish the hysteresis produced by the electromagnet [36]. Thus, the real implemented control is U PID k and U k defined as…”

Section: Control Algorithmmentioning

confidence: 99%

“…1.6). Moreover, the Hall-effect sensor may become inaccurate due to the corresponding hysteresis [36]. In this case, the sensor measures an unreal distance d, depending on whether the object moves in the sensor's direction or not-Figure 6 illustrates this phenomenon through experimental data.…”

mentioning

confidence: 99%

Semi-Active Magnetic Levitation System for Education

et al. 2021

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This paper describes how to construct a low-cost magnetic levitation system (MagLev). The MagLev has been intensively used in engineering education, allowing instructors and students to learn through hands-on experiences of essential concepts, such as electronics, electromagnetism, and control systems. Built from scratch, the MagLev depends only on simple, low-cost components readily available on the market. In addition to showing how to construct the MagLev, this paper presents a semi-active control strategy that seems novel when applied to the MagLev. Experiments performed in the laboratory provide comparisons of the proposed control scheme with the classical PID control. The corresponding real-time experiments illustrate both the effectiveness of the approach and the potential of the MagLev for education.

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“…The compensation methods of the typical hysteresis model with a monotonic shape [9,10] in mathematical terms are examined in the sensor/actuator field. These methods are classified in the same category, which study the hysteresis loops whose output growth trend is always unchanging when the direction of movement is maintained [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Model-based compensation of a concave nonlinear hysteresis in the electro-hydraulic pisition servo system

Sang,

Liao,

Guo

et al. 2024

Meas. Sci. Technol.

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Nonlinearity exerts a profound influence on the displacement performance of actuators within electro-hydraulic servo systems, particularly in the context of hysteresis. This article analyses a specific hysteresis responsible for control instability, a consequence of the concave-hysteresis loop, giving rise to a notable peak phenomenon in displacement. The behavior of the concave-hysteresis loop is studied in the step load experiment of a triaxial apparatus. Subsequently, an accurately formulated mathematical model utilizing a mathematical function is derived. Notably, the article introduces an efficacious model-based compensation algorithm that integrates nonlinear iteration and fuzzy control. This strategic approach effectively addresses the issue associated with calculating the inverse model when the sensor is located in a nonlinear, hook-shaped domain. Simulation and experimentation verified the concave-hysteresis loop model and the compensation algorithm. The experiment demonstrated the elimination of peak phenomena and a decrease in sensor error from 3.7 mm to below 0.5 mm.

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An attempt of accuracy assessment of the hysteresis loop and power loss in magnetic materials during control measurements

Cited by 10 publications

References 10 publications

Measurement and analysis of an optimized Jiles–Atherton model considering the influence of temperature applied in magnetic shielding devices

Measurement and analysis of an optimized Jiles–Atherton model considering the influence of temperature applied in magnetic shielding devices

Semi-Active Magnetic Levitation System for Education

Model-based compensation of a concave nonlinear hysteresis in the electro-hydraulic pisition servo system

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