ArticleMaterials (Basel, Switzerland)2023
Measurement and Analysis of Magnetic Properties of Permalloy for Magnetic Shielding Devices under Different Temperature Environments.
Article in Materials (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Temperature Effect on Residual Magnetic Field of Atomic Gyroscope Magnetic Shielding System: A High-Precision Modeling Method.Sensors (Basel, Switzerland) · 2026Article
- The development of the open magnetic-circuit type magnetic attachment and magnetic shielding system for dental implant overdentures.Odontology · 2026Article
- Loss Separation Modeling and Optimization of Permalloy Sheets for Low-Noise Magnetic Shielding Devices.Materials (Basel, Switzerland) · 2025Article
- A Novel Simulation Model of Shielding Performance Based on the Anisotropic Magnetic Property of Magnetic Shields.Materials (Basel, Switzerland) · 2024Article
- A Progressive Loss Decomposition Method for Low-Frequency Shielding of Soft Magnetic Materials.Materials (Basel, Switzerland) · 2024Article
- Demagnetization Parameters Evaluation of Magnetic Shields Based on Anhysteretic Magnetization Curve.Materials (Basel, Switzerland) · 2023Article
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Authors and funding
4 authors.
Funding
Abstract
The relative permeability, coercivity, and remanence of permalloy are closely related to the performance of magnetic shielding devices. In this paper, the relationship between the magnetic properties of permalloy and the working temperature of magnetic shielding devices is measured. Firstly, the measurement method of permalloy properties based on the simulated impact method is analyzed. What is more, a magnetic property test system consisting of a soft magnetic material tester and a high-low temperature chamber for permalloy ring samples at different temperatures was established to measure DC and AC (0.01 Hz to 1 kHz) magnetic properties at different temperatures (-60 °C to 140 °C). Finally, the results show that compared with room temperature (25 °C), the initial permeability (μi) decreases by 69.64% at -60 °C and increases by 38.23% at 140 °C, and the coercivity (hc) decreases by 34.81% at -60 °C and increases by 8.93% at 140 °C, which are the key parameters in the magnetic shielding device. It can be concluded that the relative permeability and remanence of permalloy are positively correlated with temperature, while the saturation magnetic flux density and coercivity are negatively correlated with temperature. This paper is of great significance to the magnetic analysis and design of magnetic shielding devices.
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