B-H curve

简明释义

1. B—H曲线; 2. 磁化曲线;

英英释义

例句

1.A steep B-H curve 磁滞回线 indicates high permeability and low coercivity.

陡峭的B-H curve 磁滞回线表示高渗透率和低矫顽力。

2.Understanding the B-H curve 磁滞回线 helps in selecting the right magnetic material for an application.

理解B-H curve 磁滞回线有助于为应用选择合适的磁性材料。

3.Engineers often refer to the B-H curve 磁滞回线 when designing transformers.

工程师在设计变压器时经常参考B-H curve 磁滞回线。

4.The shape of the B-H curve 磁滞回线 indicates how a material responds to magnetic fields.

该B-H curve 磁滞回线的形状表明材料如何响应磁场。

5.The area within the B-H curve 磁滞回线 represents energy loss in a magnetic material.

在B-H curve 磁滞回线内部的面积代表了磁性材料中的能量损失。

作文

The study of magnetism is a fascinating field that has significant implications in both science and technology. One of the key concepts in understanding magnetic materials is the B-H curve, which illustrates the relationship between magnetic flux density (B) and magnetic field strength (H). The B-H curve is crucial for engineers and scientists as it provides insights into how materials respond to external magnetic fields, which is essential for designing various electronic devices, transformers, and magnetic storage media.To delve deeper into the significance of the B-H curve, we must first understand its components. Magnetic flux density (B) measures the amount of magnetic field passing through a given area, while magnetic field strength (H) represents the intensity of the magnetic field applied to the material. The B-H curve typically showcases a nonlinear relationship; as the magnetic field strength increases, the magnetic flux density also increases, but not in a linear fashion.The initial part of the B-H curve is characterized by a steep slope, indicating that the material is easily magnetized. This region is known as the linear region, where the material responds predictably to changes in the applied magnetic field. However, as H continues to increase, the curve begins to flatten, indicating that the material is approaching saturation. At this point, the material cannot be magnetized any further, regardless of the increase in H.Another important aspect of the B-H curve is the concept of hysteresis. When a magnetic material is subjected to a changing magnetic field, the B-H curve does not follow the same path when the field is removed. Instead, it traces out a loop, demonstrating that the material retains some magnetization even after the external field is removed. This phenomenon is crucial in applications such as magnetic storage devices, where data must be retained without continuous power supply.Understanding the B-H curve is essential for selecting the right magnetic materials for specific applications. For example, soft magnetic materials, which have narrow hysteresis loops, are ideal for transformer cores, as they can be magnetized and demagnetized easily with minimal energy loss. In contrast, hard magnetic materials, with wider hysteresis loops, are suitable for permanent magnets used in motors and generators.In conclusion, the B-H curve is a fundamental concept in magnetism that helps us understand the behavior of magnetic materials under varying external conditions. Its significance extends beyond theoretical understanding; it has practical applications in designing and optimizing various technologies that rely on magnetic properties. By mastering the B-H curve, engineers and scientists can innovate and improve the efficiency of devices that play a critical role in our daily lives, from electric vehicles to data storage solutions.

磁学研究是一个迷人的领域，对科学和技术都有重要的影响。在理解磁性材料时，一个关键概念是B-H 曲线，它展示了磁通密度（B）与磁场强度（H）之间的关系。B-H 曲线对于工程师和科学家至关重要，因为它提供了材料如何响应外部磁场的见解，这对设计各种电子设备、变压器和磁性存储介质至关重要。要深入了解B-H 曲线的重要性，我们首先必须了解其组成部分。磁通密度（B）测量通过给定面积的磁场量，而磁场强度（H）表示施加于材料的磁场强度。B-H 曲线通常展示出非线性关系；随着磁场强度的增加，磁通密度也增加，但不是以线性方式增加。B-H 曲线的初始部分特征为陡峭的斜率，表明材料易于磁化。这个区域被称为线性区域，在这里，材料对施加的磁场变化的反应是可预测的。然而，随着H的持续增加，曲线开始变平，表明材料接近饱和。在这一点上，无论H的增加，材料都无法进一步磁化。B-H 曲线的另一个重要方面是滞后现象。当磁性材料受到变化的磁场作用时，B-H 曲线在移除场时不会遵循相同的路径。相反，它描绘出一个循环，表明材料即使在外部场移除后仍保留一些磁化。这一现象在诸如磁存储设备等应用中至关重要，因为数据必须在没有持续电源供应的情况下保留。理解B-H 曲线对选择特定应用所需的合适磁性材料至关重要。例如，具有狭窄滞后回路的软磁材料非常适合用于变压器核心，因为它们可以在最小能量损失的情况下轻松地被磁化和去磁化。相比之下，具有较宽滞后回路的硬磁材料适用于用于电动机和发电机的永久磁铁。总之，B-H 曲线是磁学中的一个基本概念，帮助我们理解磁性材料在不同外部条件下的行为。它的重要性超越了理论理解；在设计和优化依赖于磁性特性的各种技术中具有实际应用。通过掌握B-H 曲线，工程师和科学家可以创新并提高在日常生活中发挥关键作用的设备的效率，从电动车到数据存储解决方案。