demagnetization loss

简明释义

消磁损失

英英释义

例句

1.High temperatures can lead to increased demagnetization loss in permanent magnets.

高温会导致永久磁体中的去磁损失增加。

2.The research focused on the factors contributing to demagnetization loss in various materials.

研究集中在导致各种材料中去磁损失的因素上。

3.Engineers are working to minimize demagnetization loss in the design of electric generators.

工程师们正在努力在电动发电机的设计中最小化去磁损失。

4.The motor's efficiency was affected by significant demagnetization loss, which means it was losing its magnetic properties.

电动机的效率受到显著的去磁损失影响，这意味着它正在失去其磁性特性。

5.To improve performance, we need to address the demagnetization loss in our transformers.

为了提高性能，我们需要解决变压器中的去磁损失问题。

作文

In the field of electromagnetism and electrical engineering, understanding the concept of demagnetization loss is crucial for optimizing the performance of magnetic materials and devices. Demagnetization loss refers to the energy lost when a magnetic material is subjected to an external magnetic field that alters its magnetization. This phenomenon can occur in various applications, including transformers, electric motors, and magnetic storage devices. When a magnetic material, such as iron or ferrite, is magnetized, it aligns its internal magnetic domains in a specific direction. However, when the external magnetic field is removed or reversed, these domains may not return to their original state immediately. The energy associated with this realignment process is what we refer to as demagnetization loss. One significant factor contributing to demagnetization loss is the material's coercivity, which is its resistance to changes in magnetization. Materials with high coercivity tend to retain their magnetization better, thus experiencing lower demagnetization loss. Conversely, materials with low coercivity are more susceptible to losing their magnetization, leading to higher energy losses. This characteristic is particularly important in the design of permanent magnets and magnetic circuits, where efficiency is paramount.Another aspect to consider is the frequency of the alternating current (AC) in electromagnetic devices. As the frequency increases, the rate at which the magnetic field changes also increases, resulting in higher demagnetization loss. This is particularly relevant in applications like transformers, where the core material must be chosen carefully to minimize energy losses. Engineers often use materials with low hysteresis loss, which is closely related to demagnetization loss, to enhance the efficiency of these devices.Furthermore, temperature plays a critical role in demagnetization loss. As the temperature of a magnetic material rises, its thermal agitation increases, causing the magnetic domains to become misaligned. This misalignment leads to greater energy dissipation during the demagnetization process. Therefore, maintaining optimal operating temperatures is essential for minimizing demagnetization loss in practical applications.To mitigate demagnetization loss, engineers and researchers focus on improving material properties and optimizing designs. For instance, using composite materials that combine different magnetic properties can lead to improved performance. Additionally, advanced manufacturing techniques allow for the production of magnetic components with tailored characteristics that reduce energy losses.In conclusion, demagnetization loss is a vital consideration in the design and operation of magnetic materials and devices. By understanding the factors that contribute to this phenomenon, such as coercivity, frequency, and temperature, engineers can develop more efficient systems. As technology continues to advance, addressing demagnetization loss will remain a key challenge in the pursuit of energy-efficient magnetic devices. Through ongoing research and innovation, we can expect to see improvements that will benefit various industries, from renewable energy to consumer electronics.

在电磁学和电气工程领域，理解退磁损耗的概念对于优化磁性材料和设备的性能至关重要。退磁损耗是指当磁性材料受到外部磁场的影响而改变其磁化状态时所损失的能量。这种现象可以发生在各种应用中，包括变压器、电动机和磁存储设备。当像铁或铁氧体这样的磁性材料被磁化时，它会将其内部的磁畴朝特定方向排列。然而，当外部磁场被移除或反转时，这些磁畴可能不会立即返回到原始状态。与这一重排过程相关的能量就是我们所称之为的退磁损耗。影响退磁损耗的重要因素之一是材料的矫顽力，即其对磁化变化的抵抗能力。具有高矫顽力的材料通常更好地保持其磁化状态，从而经历较低的退磁损耗。相反，矫顽力低的材料更容易失去其磁化，导致更高的能量损失。这一特性在设计永磁体和磁路中尤为重要，因为效率至关重要。另一个需要考虑的方面是电磁设备中交流电（AC）的频率。随着频率的增加，磁场变化的速率也随之增加，从而导致更高的退磁损耗。这在变压器等应用中特别相关，其中核心材料必须仔细选择以最小化能量损失。工程师通常使用低滞后损耗的材料，而滞后损耗与退磁损耗密切相关，以提高这些设备的效率。此外，温度在退磁损耗中也起着关键作用。当磁性材料的温度升高时，其热激发增加，导致磁畴变得错位。这种错位在退磁过程中会导致更大的能量耗散。因此，保持最佳工作温度对于最小化实际应用中的退磁损耗至关重要。为了减轻退磁损耗，工程师和研究人员专注于改善材料特性和优化设计。例如，使用结合不同磁性特性的复合材料可以提高性能。此外，先进的制造技术允许生产具有定制特性的磁性组件，从而减少能量损失。总之，退磁损耗是在磁性材料和设备的设计与运行中至关重要的考虑因素。通过理解影响这一现象的因素，如矫顽力、频率和温度，工程师可以开发出更高效的系统。随着技术的不断进步，解决退磁损耗将继续是追求能源高效磁性设备的关键挑战。通过持续的研究和创新，我们可以期待看到改善，这将惠及从可再生能源到消费电子等各个行业。