Abstract
This paper presents investigation results regarding the Jiles-Atherton-based hysteresis loop modeling of ultra-high permeability amorphous alloy MELTA® MM-5Co. The measurement stand is capable of accurately measuring minor and major hysteresis loops for such a material together with exemplary measurement results. The main source of the measurement error is highlighted, which includes the Earth’s field influence. The results of hysteresis loop modeling with the original Jiles-Atherton model and with two of its modifications are given. In all cases, the parameters of the Jiles-Atherton model were identified in two-step identification on the basis of a differential evolution optimization algorithm. The results indicate that both the original and modified Jiles-Atherton models are suitable for modeling the ultra-soft amorphous alloy. However, the hysteresis model’s parameters vary significantly.
Highlights
Demanding applications including aerospace technology require state-of-the-art materials such as ultra-high permeability alloys with quasistatic maximum relative permeability μ exceeding 250,000. Such materials are especially suitable for fluxgate sensors for precision measurements of magnetic fields [1,2,3]
During a past project concerned with the design of low-noise magnetic fluxgates, the modified MELTA® MM-5Co amorphous alloy was chosen for the core of the device [4]
The ring-shaped samples used in the investigation were made of amorphous alloy
Summary
Demanding applications including aerospace technology require state-of-the-art materials such as ultra-high permeability alloys with quasistatic maximum relative permeability μ exceeding 250,000. Such materials are especially suitable for fluxgate sensors for precision measurements of magnetic fields [1,2,3]. During a past project concerned with the design of low-noise magnetic fluxgates, the modified MELTA® MM-5Co amorphous alloy was chosen for the core of the device [4]. Describes a low-noise (
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