eddy current loss

简明释义

涡流损耗

英英释义

例句

1.Engineers need to account for eddy current loss when calculating the efficiency of induction motors.

工程师在计算感应电动机的效率时，需要考虑涡流损耗。

2.To improve thermal performance, minimizing eddy current loss is crucial in heat exchangers.

为了改善热性能，最小化涡流损耗在热交换器中至关重要。

3.The design of the transformer was optimized to minimize eddy current loss.

变压器的设计经过优化，以最小化涡流损耗。

4.The high-frequency operation of the circuit increases eddy current loss in the components.

电路的高频操作增加了元件中的涡流损耗。

5.Using laminated cores can significantly reduce eddy current loss in electrical machines.

使用层压铁心可以显著减少电机中的涡流损耗。

作文

Eddy currents are loops of electrical current that are induced within conductors by a changing magnetic field in the conductor. This phenomenon is a result of Faraday's law of electromagnetic induction. When a conductor experiences a change in magnetic flux, it generates circulating currents known as eddy currents. However, these currents can lead to energy losses in the form of heat, which is referred to as eddy current loss. 涡流损耗 is particularly significant in applications involving transformers, electric motors, and generators where efficiency is crucial.The presence of eddy current loss can reduce the overall efficiency of electrical devices. In transformers, for instance, the core materials are often subjected to alternating magnetic fields. These fields induce eddy currents in the core, resulting in energy being dissipated as heat. To minimize this effect, manufacturers often use laminated cores made of thin sheets of electrical steel. By doing so, they restrict the flow of eddy currents, thereby reducing eddy current loss and improving the transformer's efficiency.In electric motors, eddy current loss can also occur in the rotor and stator components. The design of these components is critical; they must be constructed in a way that minimizes eddy current loss. For example, using materials with high electrical resistance can help reduce the magnitude of eddy currents generated. Additionally, employing advanced cooling techniques can help dissipate the heat generated by eddy current loss, further enhancing the motor's performance.Another area where eddy current loss is a concern is in induction heating applications. In these systems, a rapidly changing magnetic field induces eddy current loss in the heating coils, which can affect the overall system efficiency. Engineers must carefully design these systems to balance the benefits of eddy currents for heating while minimizing losses.To further mitigate eddy current loss, engineers often employ various techniques such as using ferrite cores or designing components that operate at higher frequencies. Higher frequencies tend to produce smaller eddy current loss and improved performance of the electrical devices.In conclusion, understanding and managing eddy current loss is essential for enhancing the efficiency of electrical devices. Through careful design choices and material selection, engineers can minimize these losses, leading to more efficient and effective systems. As technology continues to evolve, the importance of addressing eddy current loss will remain a key focus in the development of electrical and electronic systems, ensuring that they meet the increasing demands for energy efficiency and performance.

涡流是由导体内感应出的电流环路，由导体中的变化磁场引起。这一现象是法拉第电磁感应定律的结果。当导体经历磁通量的变化时，它会产生称为涡流的循环电流。然而，这些电流会导致以热的形式损失能量，这被称为涡流损耗。涡流损耗在变压器、电动机和发电机等应用中尤其显著，因为这些地方的效率至关重要。涡流损耗的存在可能会降低电气设备的整体效率。例如，在变压器中，核心材料通常会受到交变磁场的影响。这些场在核心中诱导出涡流，导致能量以热的形式散失。为了最小化这种影响，制造商通常使用由薄片电工钢制成的层压核心。通过这样做，他们限制了涡流的流动，从而减少了涡流损耗，提高了变压器的效率。在电动机中，涡流损耗也可能发生在转子和定子组件中。这些组件的设计至关重要；它们必须以最小化涡流损耗的方式构造。例如，使用高电阻材料可以帮助减少生成的涡流的大小。此外，采用先进的冷却技术可以帮助散发因涡流损耗产生的热量，进一步增强电动机的性能。另一个涡流损耗令人担忧的领域是感应加热应用。在这些系统中，快速变化的磁场在被加热的材料中诱导出涡流损耗，这可能影响整个系统的效率。工程师必须仔细设计这些系统，以平衡涡流加热的好处，同时最小化损失。为了进一步减轻涡流损耗，工程师通常采用各种技术，例如使用铁氧体核心或设计在更高频率下运行的组件。更高的频率往往会由于表面效应而产生较小的涡流损耗，并提高了电气设备的性能。总之，理解和管理涡流损耗对于提高电气设备的效率至关重要。通过仔细的设计选择和材料选择，工程师可以最小化这些损失，从而导致更高效和有效的系统。随着技术的不断发展，解决涡流损耗的重要性将继续成为电气和电子系统开发的关键焦点，确保它们满足日益增长的能源效率和性能要求。