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Measurement and Modeling for Magnetic Properties of Amorphou

发布时间:2021-09-07 19:03
  非晶态金属也称为金属玻璃或玻璃金属,是一种固体金属材料,通常是合金,具有无序的原子尺度结构。大多数金属在固态状态下都是结晶的,这意味着它们有高度有序的原子排列。非晶态合金目前最重要的应用是在工频和一些高频变压器、高效率、低磁化损耗的变压器中。非晶态合金材料因其技术应用前景广阔而受到人们的关注。本文采用二维单片测试仪和数据采集装置,测量了一维交变和二维旋转磁场中磁通密度B与磁场强度H的关系。提出了一种测量非晶合金材料中磁通量和磁场强度分量的方法。本文在50赫兹频率的不同外加磁场激励下,对非晶合金样品的B和H进行了测量。通过对测量结果的对比分析发现:在低通量密度(0.35 T)下的测量中,Bx-Hx和ByHy磁滞回线的形状几乎相同,在增加励磁电流后,两个方向的磁滞行为发生了变化。在测量磁通密度达到0.88 T时,这种现象更加明显,直到在y方向的磁通密度达到1.85T和X方向1.73 T,材料达到磁饱和值。本文采用Jiles-Atherton磁滞模型模拟了非晶态合金的磁滞特性。主要工作涉及用交变磁场模拟磁滞特性并与交变磁场测量B-H结果进行对比。仿真结果表明,JilesAtherton模型具... 

【文章来源】:厦门理工学院福建省

【文章页数】:65 页

【学位级别】:硕士

【文章目录】:
Abstract
摘要
Chapter 1 Introduction
    1.1 Advantage of Amorphous alloy
    1.2 Industry Application of Amorphous Alloy
    1.3 Structure of Thesis
    1.4 Series of Magnetics
        1.4.1 Magnetic Dipoles
        1.4.2 Diamagnetism
        1.4.3 Paramagnetism
        1.4.4 Ferromagnetism and Antiferromagnetism
        1.4.5 Ferrimagnetism
        1.4.6 Domains and Hysteresis
        1.4.7 Soft and Hard Magnets
        1.4.8 Superparamagnetism
    1.5 Measuring Technique for Magnetic Field Strength and Flux Density
        1.5.1 Magnetisation Current Method
        1.5.2 Sensing Coil Method
        1.5.3 Hall Elements
        1.5.4 B Tips
        1.5.5 B Coils
    1.6 Eddy currents
    1.7 Jiles-Atherton Model
        1.7.1 Principle J-A Model
        1.7.2 Modelling The Magnetic Hysterisis Loop
        1.7.3 The Development
Chapter 2 Data Acquisitions
    2.1 Lab View construction
        2.1.1 Front Panel
        2.1.2 Block Diagram
        2.1.3 Icon/Connector
    2.2 Principle of Lab View DAQmx
    2.3 Lab View DAQmx measurement system
Chapter 3 Experimental and Simulation
    3.1 Sensor Calibration
    3.2 Description of the measurment setup
    3.3 Lab View program for measuring B-H loops
    3.4 AC/DC Power Source APS-1102A
        3.4.1 General
        3.4.2 Applications
Chapter 4 Research Results
    4.1 2D measurement
    4.2 Summary table of the results
Chapter 5 Jiles-Atherton Modelling
    5.1 Jiles-Atherton Hysterisis Loop Models
    5.2 Summary table of the results
Chapter 6 Conclusion
    6.1 Conclusion
    6.2 Future work
Appendices
References
Acknowlegements


【参考文献】:
期刊论文
[1]Outstanding Magneto-Caloric Effect of a Gd60Ni37Co3 Amorphous Alloy[J]. 马雁飞,唐本镇,夏雷,丁鼎.  Chinese Physics Letters. 2016(12)



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