magnetic hysteresis loop

简明释义

磁滞环线

英英释义

例句

1.The magnetic hysteresis loop 磁滞回线 can be plotted using a B-H curve.

可以使用B-H曲线绘制磁滞回线。

2.The study of the magnetic hysteresis loop 磁滞回线 is crucial for understanding how materials respond to magnetic fields.

研究磁滞回线对于理解材料如何对磁场作出反应至关重要。

3.The width of the magnetic hysteresis loop 磁滞回线 indicates the energy loss in a magnetic material.

磁滞回线的宽度表明了磁性材料中的能量损失。

4.Engineers often analyze the magnetic hysteresis loop 磁滞回线 to improve transformer efficiency.

工程师们常常分析磁滞回线以提高变压器的效率。

5.In the lab, we measured the magnetic hysteresis loop 磁滞回线 of various ferromagnetic materials.

在实验室，我们测量了各种铁磁材料的磁滞回线。

作文

The study of magnetic materials is a fascinating field that has significant implications in various technological applications. One of the key concepts in this area is the magnetic hysteresis loop, which describes the relationship between the magnetization of a material and the external magnetic field applied to it. Understanding this phenomenon is crucial for engineers and scientists who work with magnetic materials, as it influences the performance of devices such as transformers, inductors, and magnetic storage media.To begin with, the magnetic hysteresis loop illustrates how a magnetic material responds to an external magnetic field. When a magnetic field is applied to a ferromagnetic material, it becomes magnetized, aligning its internal magnetic domains in the direction of the field. As the strength of the external field increases, the magnetization of the material also increases until it reaches a saturation point. At this stage, all the magnetic domains are aligned, and the material has reached its maximum magnetization.However, what makes the magnetic hysteresis loop particularly interesting is the behavior of the material when the external magnetic field is reduced. As the field strength decreases, the magnetization does not immediately return to zero. Instead, it follows a different path, indicating that some magnetization remains even when the external field is removed. This residual magnetization is known as remanence. The difference in the paths taken during magnetization and demagnetization results in a loop-like shape when plotted on a graph, hence the term 'hysteresis.'The area enclosed by the magnetic hysteresis loop is significant as it represents the energy loss in the material due to magnetization and demagnetization cycles. This energy loss is a critical factor in the design of electrical devices, as it affects their efficiency and thermal performance. For instance, in transformer cores, a smaller hysteresis loop indicates lower energy losses, which translates to better efficiency in power transmission.Furthermore, the shape and size of the magnetic hysteresis loop can vary depending on the material's composition and treatment. Soft magnetic materials, such as silicon steel, exhibit narrow loops, which means they can be easily magnetized and demagnetized with minimal energy loss. In contrast, hard magnetic materials, like permanent magnets, display wider loops, indicating that they retain a significant amount of magnetization even after the external field is removed. This property is essential for applications requiring stable magnetic fields, such as in electric motors and generators.In conclusion, the magnetic hysteresis loop is a fundamental concept in the study of magnetic materials, providing insights into their magnetic properties and behaviors. By understanding this phenomenon, engineers and researchers can optimize the performance of various devices that rely on magnetic materials. As technology continues to advance, the importance of the magnetic hysteresis loop will undoubtedly grow, paving the way for innovations in energy-efficient technologies and advanced magnetic applications.

磁性材料的研究是一个迷人的领域，对各种技术应用具有重要意义。在这个领域中，一个关键概念是磁滞回线，它描述了材料的磁化与施加于其上的外部磁场之间的关系。理解这一现象对从事磁性材料工作的工程师和科学家至关重要，因为它影响变压器、感应器和磁存储介质等设备的性能。首先，磁滞回线说明了磁性材料如何响应外部磁场。当施加磁场于铁磁材料时，它会被磁化，使其内部磁畴朝着磁场方向排列。当外部磁场强度增加时，材料的磁化也会增加，直到达到饱和点。在这个阶段，所有的磁畴都被对齐，材料达到了最大的磁化程度。然而，磁滞回线特别有趣的地方在于，当外部磁场减小时，材料的磁化并不会立即回到零。相反，它会沿着不同的路径返回，这表明即使在外部磁场被移除后，仍然保持一些磁化。这种残余磁化被称为剩余磁化。磁化和去磁化过程中所采取路径的差异导致在图表上绘制出环状形状，因此称为“滞后”。磁滞回线所包围的面积是重要的，因为它代表了材料在磁化和去磁化周期中的能量损失。这一能量损失是电气设备设计中的关键因素，因为它影响设备的效率和热性能。例如，在变压器核心中，较小的滞后回线表明较低的能量损失，这转化为电力传输的更好效率。此外，磁滞回线的形状和大小可以根据材料的组成和处理方式而有所不同。软磁材料，如硅钢，表现出狭窄的回线，这意味着它们可以在最小能量损失的情况下轻松地磁化和去磁化。相比之下，硬磁材料，如永久磁铁，显示出较宽的回线，表明它们在外部磁场移除后仍然保留大量磁化。这一特性对于需要稳定磁场的应用至关重要，例如在电动机和发电机中。总之，磁滞回线是磁性材料研究中的一个基本概念，为其磁性特性和行为提供了见解。通过理解这一现象，工程师和研究人员可以优化依赖磁性材料的各种设备的性能。随着技术的不断进步，磁滞回线的重要性无疑会增加，为节能技术和先进磁性应用的创新铺平道路。