induced magnetism

简明释义

感应磁场

英英释义

例句

1.In transformers, induced magnetism is essential for the transfer of electrical energy between coils.

在变压器中，感应磁性对于线圈之间电能的传输至关重要。

2.The phenomenon of induced magnetism can be observed when a piece of iron is placed near a strong magnet.

当一块铁放置在强磁铁附近时，可以观察到感应磁性现象。

3.The concept of induced magnetism helps explain how magnetic fields can influence nearby materials.

感应磁性的概念有助于解释磁场如何影响附近的材料。

4.The study of induced magnetism is crucial in developing new magnetic materials.

研究感应磁性对于开发新型磁性材料至关重要。

5.When a magnetic field is applied to certain materials, they exhibit induced magnetism temporarily.

当对某些材料施加磁场时，它们会暂时表现出感应磁性。

作文

Induced magnetism is a fascinating phenomenon that occurs when a material becomes magnetized in the presence of an external magnetic field. This process is not only essential for understanding basic magnetic principles but also has practical applications in various fields, such as engineering, electronics, and even medicine. To better grasp the concept of induced magnetism (诱发磁性), we can explore its mechanisms, examples, and significance in our daily lives.When an unmagnetized material, like iron, is placed within a magnetic field, the magnetic domains within the material begin to align with the direction of the external field. These domains are small regions within the material where the magnetic moments of atoms are aligned in the same direction. In an unmagnetized state, these domains point in random directions, canceling each other out. However, when exposed to an external magnetic field, the domains start to reorient themselves, leading to the material becoming magnetized temporarily.The strength of induced magnetism (诱发磁性) depends on several factors, including the intensity of the external magnetic field, the type of material, and the duration of exposure. For instance, ferromagnetic materials, such as iron, cobalt, and nickel, exhibit strong induced magnetism (诱发磁性) because their atomic structure allows for significant alignment of magnetic domains. In contrast, paramagnetic materials, like aluminum, show weaker induced magnetism (诱发磁性) since their magnetic domains do not align as strongly or persistently.One of the most common applications of induced magnetism (诱发磁性) is in the manufacturing of permanent magnets. During the production process, materials are subjected to a strong magnetic field, which induces magnetism within them. Once the external field is removed, these materials retain their magnetization, allowing them to be used in various devices, from refrigerator magnets to electric motors.Another important application of induced magnetism (诱发磁性) is in magnetic resonance imaging (MRI) technology. MRI machines utilize strong magnetic fields to induce magnetism in hydrogen atoms within the human body. When these atoms are exposed to radio waves, they emit signals that are detected and transformed into detailed images of internal structures. This technique has revolutionized medical diagnostics, providing non-invasive insights into the human body.Furthermore, induced magnetism (诱发磁性) plays a crucial role in the functioning of transformers and inductors in electrical circuits. Transformers rely on the principle of electromagnetic induction, where an alternating current in one coil induces a magnetic field that generates a current in another coil. This process is vital for the efficient transmission of electrical energy over long distances.In conclusion, understanding induced magnetism (诱发磁性) enhances our comprehension of magnetic phenomena and their applications in modern technology. From the creation of permanent magnets to advancements in medical imaging, the concept of induced magnetism (诱发磁性) is integral to numerous innovations that shape our world. As we continue to explore the intricacies of magnetism, we can appreciate the profound impact it has on both scientific research and everyday life.

诱发磁性是一个迷人的现象，当材料在外部磁场的存在下被磁化时就会发生这种现象。这个过程不仅对于理解基本的磁性原理至关重要，而且在工程、电子乃至医学等多个领域都有实际应用。为了更好地掌握诱发磁性（induced magnetism）的概念，我们可以探讨它的机制、例子以及在日常生活中的重要性。当未磁化的材料（如铁）放置在磁场中时，材料内部的磁畴开始与外部磁场的方向对齐。这些磁畴是材料内部的小区域，其中原子的磁矩朝同一方向排列。在未磁化状态下，这些磁畴指向随机方向，彼此抵消。然而，当暴露于外部磁场时，磁畴开始重新定向，从而导致材料暂时被磁化。诱发磁性（induced magnetism）的强度取决于几个因素，包括外部磁场的强度、材料的类型和暴露的持续时间。例如，铁、钴和镍等铁磁材料表现出强烈的诱发磁性（induced magnetism），因为它们的原子结构允许磁畴显著对齐。相比之下，铝等顺磁材料显示出较弱的诱发磁性（induced magnetism），因为它们的磁畴并不那么强烈或持久地对齐。诱发磁性（induced magnetism）的一个常见应用是制造永久磁铁。在生产过程中，材料会受到强磁场的影响，这会在其内部诱发磁性。一旦外部磁场被移除，这些材料会保留其磁化，使其能够用于各种设备，从冰箱磁铁到电动机。诱发磁性（induced magnetism）在磁共振成像（MRI）技术中也是一个重要的应用。MRI机器利用强磁场在人体内的氢原子中诱发磁性。当这些原子暴露于无线电波时，它们会发出信号，这些信号被检测并转化为内部结构的详细图像。这项技术彻底改变了医学诊断，提供了对人体内部结构的非侵入性洞察。此外，诱发磁性（induced magnetism）在电路中的变压器和电感器的功能中起着至关重要的作用。变压器依赖电磁感应原理，其中一个线圈中的交流电流诱发一个磁场，进而在另一个线圈中产生电流。这个过程对于有效地远距离传输电能至关重要。总之，理解诱发磁性（induced magnetism）增强了我们对磁性现象及其在现代技术中应用的理解。从永久磁铁的制造到医学成像的进步，诱发磁性（induced magnetism）的概念是塑造我们世界的众多创新的核心。随着我们继续探索磁性的复杂性，我们可以欣赏它对科学研究和日常生活的深远影响。