magnetic hysteresis

简明释义

磁滞

英英释义

例句

1.The loop area in a magnetic hysteresis 磁滞现象 graph indicates energy loss.

在 磁滞现象 magnetic hysteresis 图中的环面积表示能量损失。

2.A material with low magnetic hysteresis 磁滞现象 is preferred for high-frequency applications.

对于高频应用，优选具有低 磁滞现象 magnetic hysteresis 的材料。

3.Engineers must consider magnetic hysteresis 磁滞现象 when selecting materials for magnetic cores.

工程师在选择磁芯材料时必须考虑到 磁滞现象 magnetic hysteresis 。

4.The concept of magnetic hysteresis 磁滞现象 is crucial in designing efficient transformers.

在设计高效变压器时，磁滞现象 magnetic hysteresis 的概念至关重要。

5.In magnetic recording, magnetic hysteresis 磁滞现象 affects the quality of data storage.

在磁记录中，磁滞现象 magnetic hysteresis 会影响数据存储的质量。

作文

Magnetic materials are essential in various applications, from electric motors to data storage devices. One of the key phenomena associated with these materials is magnetic hysteresis, which refers to the lag between the magnetization of a material and the external magnetic field applied to it. This phenomenon can be observed when a magnetic material is subjected to a changing magnetic field. As the field increases, the material becomes magnetized, but when the field is reduced or reversed, the magnetization does not follow the same path. Instead, it traces out a loop, which is known as the hysteresis loop.Understanding magnetic hysteresis is crucial for engineers and scientists who work with magnetic materials. The area within the hysteresis loop represents energy loss due to the magnetization process. This energy loss is often manifested as heat, which can affect the efficiency of devices like transformers and inductors. Therefore, minimizing magnetic hysteresis is a significant consideration in the design of these components.The shape and size of the hysteresis loop depend on several factors, including the type of material, its temperature, and the rate at which the magnetic field is applied. Soft magnetic materials, such as iron, have narrow hysteresis loops, indicating that they can be easily magnetized and demagnetized with minimal energy loss. In contrast, hard magnetic materials, like those used in permanent magnets, exhibit wide hysteresis loops, meaning they retain their magnetization even after the external magnetic field is removed.In practical applications, understanding magnetic hysteresis helps in selecting the right materials for specific uses. For instance, in electric motors, soft magnetic materials are preferred because they allow for efficient operation with lower energy losses. On the other hand, hard magnetic materials are ideal for applications requiring permanent magnets, such as in loudspeakers or magnetic locks.The study of magnetic hysteresis also extends into advanced technologies. For example, in data storage devices, the ability to manipulate the magnetic states of materials at high speeds is critical. The hysteresis characteristics of the materials used determine how quickly and reliably data can be written and erased. Researchers are continuously exploring new materials with optimized hysteresis properties to enhance the performance of these devices.In conclusion, magnetic hysteresis is a fundamental concept in the field of magnetism that has significant implications for both theoretical research and practical applications. By understanding how materials respond to magnetic fields and the energy losses involved, engineers can design more efficient systems that leverage the unique properties of magnetic materials. As technology continues to evolve, the importance of magnetic hysteresis will only grow, driving innovation in various industries and leading to new advancements in material science and engineering.

磁性材料在各种应用中至关重要，从电动机到数据存储设备。其中一个与这些材料相关的关键现象是磁滞现象，它指的是材料的磁化与施加于其上的外部磁场之间的滞后。当磁性材料受到变化的磁场作用时，可以观察到这种现象。随着磁场的增加，材料被磁化，但当磁场减少或反转时，磁化并不沿着相同的路径跟随。相反，它描绘出一个循环，这被称为滞回环。理解磁滞现象对于从事磁性材料工作的工程师和科学家至关重要。滞回环内的面积代表了由于磁化过程而导致的能量损失。这种能量损失通常表现为热量，这可能会影响变压器和电感器等设备的效率。因此，最小化磁滞现象是设计这些组件时的重要考虑因素。滞回环的形状和大小取决于几个因素，包括材料类型、温度以及施加磁场的速率。软磁材料，例如铁，具有狭窄的滞回环，表明它们可以在最小能量损失的情况下轻松地被磁化和去磁。相比之下，硬磁材料，如用于永久磁铁的材料，表现出宽滞回环，这意味着它们在外部磁场移除后仍然保持其磁化状态。在实际应用中，理解磁滞现象有助于选择适合特定用途的材料。例如，在电动机中，优选软磁材料，因为它们允许以较低的能量损失高效运行。另一方面，硬磁材料非常适合需要永久磁铁的应用，例如扬声器或磁锁。对磁滞现象的研究还扩展到先进技术中。例如，在数据存储设备中，以高速操控材料的磁态的能力至关重要。所使用材料的滞回特性决定了数据写入和擦除的速度和可靠性。研究人员不断探索具有优化滞回特性的材料，以增强这些设备的性能。总之，磁滞现象是磁学领域的一个基本概念，对理论研究和实际应用都有重要影响。通过理解材料如何响应磁场及其涉及的能量损失，工程师可以设计出更高效的系统，利用磁性材料的独特特性。随着技术的不断发展，磁滞现象的重要性只会增加，推动各行业的创新，并导致材料科学和工程的新进展。