eddy current loss

简明释义

涡琉耗

英英释义

例句

1.Researchers have developed materials that exhibit lower eddy current loss 涡流损耗 at elevated temperatures.

研究人员开发了在高温下表现出较低涡流损耗 涡流损耗的材料。

2.Engineers are always looking for ways to decrease eddy current loss 涡流损耗 in high-frequency applications.

工程师们总是在寻找减少高频应用中涡流损耗 涡流损耗的方法。

3.The new design features a cooling system that also helps to lower eddy current loss 涡流损耗.

新设计采用的冷却系统还有助于降低涡流损耗 涡流损耗。

4.Using laminated steel sheets can significantly reduce eddy current loss 涡流损耗 in electric motors.

使用层压钢片可以显著减少电动机中的涡流损耗 涡流损耗。

5.The design of the transformer was modified to minimize eddy current loss 涡流损耗 in the core.

变压器的设计被修改以最小化涡流损耗 涡流损耗在铁芯中的影响。

作文

Eddy currents are loops of electric current that are induced within conductors by a changing magnetic field in the conductor. This phenomenon is known as electromagnetic induction and is a fundamental principle in electrical engineering. However, these currents can lead to energy losses in the form of heat, which is referred to as eddy current loss. Understanding eddy current loss is crucial for engineers and designers who work with electrical devices and systems, as it directly impacts efficiency and performance.The concept of eddy current loss arises from the fact that when a conductor is exposed to a changing magnetic field, the induced currents circulate within the material. These circulating currents create resistance, which results in the generation of heat. The amount of heat produced is proportional to the square of the induced current and the resistance of the material. Consequently, materials with higher electrical conductivity will experience greater eddy current loss compared to those with lower conductivity.In practical applications, eddy current loss is a significant concern in transformers, electric motors, and generators. For instance, in transformers, the core is made of ferromagnetic materials to enhance magnetic coupling. However, without proper design considerations, the core can become a source of substantial eddy current loss, reducing the overall efficiency of the transformer. To mitigate this issue, engineers often use laminated cores, which consist of thin layers of magnetic material insulated from each other. This design restricts the flow of eddy currents, thereby reducing eddy current loss and improving efficiency.Another common approach to minimize eddy current loss is to utilize materials with high electrical resistivity. For example, aluminum and copper are commonly used in electrical applications, but their high conductivity can lead to increased eddy current loss. By using materials like silicon steel, which has lower conductivity, designers can achieve better performance and reduced energy losses.In addition to transformers, eddy current loss is also relevant in induction heating processes, where the principle of electromagnetic induction is utilized to heat materials. In these applications, understanding and controlling eddy current loss is essential to optimize heating efficiency and prevent overheating of the components involved.As technology continues to advance, the importance of addressing eddy current loss grows. With the increasing demand for energy-efficient systems, engineers must continually innovate to develop new materials and designs that minimize these losses. Research into nanomaterials and advanced composites is underway to find solutions that could significantly reduce eddy current loss in various applications.In conclusion, eddy current loss is a critical factor in the design and operation of electrical devices and systems. By understanding the mechanisms behind eddy current loss, engineers can implement strategies to mitigate its effects, leading to more efficient and reliable technologies. As we move towards a more energy-conscious world, the study and management of eddy current loss will remain at the forefront of electrical engineering and technology development.

涡流是指在导体内部由于导体中变化的磁场而引发的电流环路。这种现象被称为电磁感应，是电气工程中的基本原理。然而，这些电流会导致以热量形式的能量损失，这被称为涡流损耗。理解涡流损耗对于从事电气设备和系统工作的工程师和设计师至关重要，因为它直接影响效率和性能。涡流损耗的概念源于这样一个事实：当导体暴露于变化的磁场时，感应电流在材料内部循环。这些循环电流产生电阻，从而导致热量的生成。产生的热量与感应电流的平方及材料的电阻成正比。因此，具有较高电导率的材料将经历更大的涡流损耗，而低电导率的材料则相对较少。在实际应用中，涡流损耗在变压器、电动机和发电机中是一个重要的关注点。例如，在变压器中，核心由铁磁材料制成，以增强磁耦合。然而，如果没有适当的设计考虑，核心可能成为相当大的涡流损耗的来源，从而降低变压器的整体效率。为了减轻这个问题，工程师通常使用层压核心，由薄层的磁性材料组成，相互绝缘。这种设计限制了涡流的流动，从而减少了涡流损耗，提高了效率。另外一种常见的方法是利用高电阻率的材料来最小化涡流损耗。例如，铝和铜通常用于电气应用，但它们的高导电性可能导致增加的涡流损耗。通过使用硅钢等低导电性的材料，设计人员可以实现更好的性能和减少的能量损失。除了变压器，涡流损耗在感应加热过程中也相关，其中利用电磁感应原理加热材料。在这些应用中，理解和控制涡流损耗对于优化加热效率和防止组件过热至关重要。随着技术的不断进步，解决涡流损耗的重要性日益增加。随着对节能系统需求的增加，工程师必须不断创新，开发新的材料和设计，以最小化这些损失。关于纳米材料和先进复合材料的研究正在进行，以寻找能够显著减少各种应用中涡流损耗的解决方案。总之，涡流损耗是电气设备和系统设计与操作中的一个关键因素。通过理解涡流损耗背后的机制，工程师可以实施策略来减轻其影响，从而导致更高效、可靠的技术。随着我们走向一个更加节能的世界，研究和管理涡流损耗将始终处于电气工程和技术发展的前沿。