demagnetization coefficient

简明释义

消磁系数

英英释义

例句

1.The demagnetization coefficient is crucial for understanding how magnetic materials lose their magnetism over time.

了解磁性材料随时间失去磁性的过程，去磁系数是至关重要的。

2.The demagnetization coefficient can vary significantly between different types of ferromagnetic materials.

不同类型的铁磁材料之间，去磁系数可能会有显著差异。

3.A higher demagnetization coefficient indicates a greater tendency for the material to lose its magnetism.

较高的去磁系数表明材料失去磁性的倾向更大。

4.Engineers must consider the demagnetization coefficient when designing magnetic circuits.

工程师在设计磁路时必须考虑去磁系数。

5.In our experiments, the demagnetization coefficient of the sample was measured to evaluate its stability.

在我们的实验中，样本的去磁系数被测量以评估其稳定性。

作文

In the field of magnetism, the concept of the demagnetization coefficient plays a crucial role in understanding how materials respond to external magnetic fields. The demagnetization coefficient is a dimensionless quantity that describes the extent to which a material loses its magnetization when subjected to an external magnetic field. This phenomenon is particularly important in various applications, including magnetic storage devices, electric motors, and transformers. When a ferromagnetic material is magnetized, it acquires a certain level of magnetization due to the alignment of its magnetic domains. However, when this material is exposed to a demagnetizing field, the magnetic domains can become misaligned, leading to a reduction in the overall magnetization of the material.To better understand the significance of the demagnetization coefficient, we must first explore the factors influencing magnetization. The shape and size of a magnetic material greatly affect its magnetic properties. For instance, a long, thin rod will have a different demagnetization coefficient compared to a spherical object of the same material. This is because the geometry of the object determines how easily the magnetic domains can realign in response to an external field.The calculation of the demagnetization coefficient involves complex mathematical models that take into account the material's geometry and the distribution of its magnetic domains. Typically, the demagnetization coefficient is denoted by the letter 'N' and varies depending on the shape of the material. For example, a thin film may exhibit a different demagnetization coefficient than a bulk material, which can have significant implications for their respective applications.One practical application of understanding the demagnetization coefficient is in the design of magnetic storage devices, such as hard drives. These devices rely on the ability to maintain a stable magnetization state to store data effectively. If the demagnetization coefficient is too high, the material may lose its magnetization over time, leading to data loss. Therefore, engineers must carefully select materials with appropriate demagnetization coefficients to ensure the reliability and longevity of these devices.Moreover, the demagnetization coefficient is also essential in the context of electric motors and transformers. In these applications, the efficiency of energy conversion relies heavily on the magnetic properties of the materials used. A high demagnetization coefficient can lead to losses in energy and reduced performance. Consequently, understanding and optimizing the demagnetization coefficient is vital for improving the efficiency of these devices.In conclusion, the demagnetization coefficient is a fundamental parameter in the study of magnetism, influencing the behavior of magnetic materials in various applications. By grasping the implications of the demagnetization coefficient, scientists and engineers can enhance the performance of magnetic devices, leading to advancements in technology. As research continues to evolve, the understanding of the demagnetization coefficient will undoubtedly play a pivotal role in the future of magnetic materials and their applications.

在磁学领域，去磁系数的概念在理解材料如何响应外部磁场方面起着至关重要的作用。去磁系数是一个无量纲的量，描述了当材料受到外部磁场作用时，其失去磁化程度的大小。这一现象在各种应用中尤为重要，包括磁存储设备、电动机和变压器。当铁磁材料被磁化时，由于其磁畴的排列，它会获得一定水平的磁化。然而，当该材料暴露于去磁场时，磁畴可能会失去排列，导致材料的整体磁化减少。为了更好地理解去磁系数的重要性，我们必须首先探讨影响磁化的因素。材料的形状和大小对其磁性特性有很大影响。例如，一个细长的棒与一个相同材料的球体将具有不同的去磁系数。这是因为物体的几何形状决定了磁畴在响应外部场时重新排列的容易程度。去磁系数的计算涉及复杂的数学模型，这些模型考虑了材料的几何形状和其磁畴的分布。通常，去磁系数用字母'N'表示，并且根据材料的形状而有所不同。例如，薄膜可能表现出与块状材料不同的去磁系数，这对它们各自的应用可能具有重要意义。理解去磁系数的一个实际应用是在磁存储设备（如硬盘）的设计中。这些设备依赖于保持稳定的磁化状态以有效存储数据。如果去磁系数过高，材料可能会随着时间的推移失去其磁化，从而导致数据丢失。因此，工程师必须仔细选择具有适当去磁系数的材料，以确保这些设备的可靠性和耐用性。此外，去磁系数在电动机和变压器的背景下也至关重要。在这些应用中，能量转换的效率在很大程度上依赖于所用材料的磁性特性。高去磁系数可能导致能量损失和性能降低。因此，理解和优化去磁系数对于提高这些设备的效率至关重要。总之，去磁系数是研究磁性材料的基本参数，影响着各种应用中磁性材料的行为。通过掌握去磁系数的含义，科学家和工程师可以增强磁性设备的性能，推动技术的进步。随着研究的不断发展，对去磁系数的理解无疑将在未来的磁性材料及其应用中发挥关键作用。