B-H loop

简明释义

磁滞回线

英英释义

例句

1.Understanding the B-H loop is crucial for designing efficient magnetic circuits.

理解B-H loop（磁场强度-磁通密度曲线）对于设计高效的磁路至关重要。

2.The shape of the B-H loop indicates the magnetic properties of the material used in this transformer.

这个变压器中使用的材料的磁性特性由B-H loop（磁场强度-磁通密度曲线）的形状决定。

3.The area within the B-H loop represents the energy loss during each cycle of magnetization.

在每个磁化周期中，B-H loop（磁场强度-磁通密度曲线）内部的面积代表能量损失。

4.In our lab, we measured the B-H loop to determine the saturation magnetization of the sample.

在我们的实验室，我们测量了B-H loop（磁场强度-磁通密度曲线）以确定样品的饱和磁化强度。

5.We plotted the B-H loop to visualize the hysteresis effect in the ferromagnetic material.

我们绘制了B-H loop（磁场强度-磁通密度曲线）以可视化铁磁材料中的滞后效应。

作文

The study of magnetic materials is a vital aspect of physics and engineering, particularly in the design of various electronic devices. One of the key concepts in this field is the B-H loop, which represents the relationship between magnetic flux density (B) and magnetic field strength (H). Understanding the B-H loop is essential for both theoretical analysis and practical applications in magnetism.The B-H loop is typically observed in ferromagnetic materials, which exhibit a phenomenon known as hysteresis. When a magnetic field is applied to such materials, they become magnetized. As the external magnetic field strength (H) increases, the magnetic flux density (B) also increases until it reaches a saturation point. This initial increase is represented on the ascending part of the B-H loop. However, when the external magnetic field is decreased, the magnetic flux density does not return to zero immediately; instead, it follows a different path, creating a loop shape. This behavior illustrates the concept of hysteresis, where the material retains some magnetization even after the external field is removed. The area enclosed within the B-H loop is indicative of energy loss due to this hysteresis effect, which is a critical factor in the efficiency of magnetic devices such as transformers and inductors.In practical terms, understanding the B-H loop allows engineers to select appropriate materials for specific applications. For instance, materials with narrow B-H loops are preferred in applications requiring minimal energy loss, while those with wider loops may be suitable for applications that require strong permanent magnets. Additionally, the shape and size of the B-H loop can provide insights into the material's magnetic properties, such as coercivity and permeability. Furthermore, the B-H loop plays a significant role in the development of advanced magnetic materials. Researchers are constantly exploring ways to manipulate the B-H loop to enhance the performance of magnetic materials. For example, alloying elements or altering the microstructure of the material can shift the B-H loop characteristics, leading to improved magnetic performance in various applications.In conclusion, the B-H loop is a fundamental concept in the study of magnetism, providing valuable insights into the behavior of magnetic materials. It illustrates the relationship between magnetic flux density and magnetic field strength, highlighting the importance of hysteresis in practical applications. By mastering the knowledge of the B-H loop, engineers and scientists can better design and utilize magnetic materials for a wide range of technological innovations. Understanding the B-H loop not only contributes to advancements in electronics but also enhances our overall comprehension of magnetic phenomena in nature.

磁性材料的研究是物理学和工程学中的一个重要方面，特别是在各种电子设备的设计中。这个领域的一个关键概念是B-H loop，它代表了磁通密度（B）和磁场强度（H）之间的关系。理解B-H loop对磁学的理论分析和实际应用都是至关重要的。B-H loop通常在铁磁材料中观察到，这些材料表现出一种称为滞后的现象。当外部磁场施加于此类材料时，它们会被磁化。当外部磁场强度（H）增加时，磁通密度（B）也会增加，直到达到饱和点。这一初始增加在B-H loop的上升部分表示。然而，当外部磁场减小时，磁通密度不会立即返回零；相反，它沿着不同的路径返回，形成一个环形。这种行为说明了滞后现象的概念，即材料即使在外部场移除后仍保留一些磁化。围绕在B-H loop内的区域指示了由于这种滞后效应导致的能量损失，这是变压器和电感等磁性设备效率的关键因素。在实际应用中，理解B-H loop使工程师能够为特定应用选择合适的材料。例如，具有窄B-H loop的材料在需要最小能量损失的应用中更受欢迎，而那些具有宽环的材料可能适合需要强永久磁铁的应用。此外，B-H loop的形状和大小可以提供关于材料的磁性能的见解，例如矫顽力和磁导率。此外，B-H loop在先进磁性材料的发展中也扮演着重要角色。研究人员不断探索通过操控B-H loop来增强磁性材料性能的方法。例如，合金元素或改变材料的微观结构可以改变B-H loop的特性，从而在各种应用中提高磁性能。总之，B-H loop是磁学研究中的基本概念，为我们提供了有关磁性材料行为的宝贵见解。它说明了磁通密度和磁场强度之间的关系，强调了滞后在实际应用中的重要性。通过掌握B-H loop的知识，工程师和科学家可以更好地设计和利用磁性材料，推动广泛的技术创新。理解B-H loop不仅有助于电子学的进步，也增强了我们对自然界中磁现象的整体理解。