skin effect

简明释义

趋肤效应

英英释义

例句

1.The skin effect can lead to overheating of wires if not properly managed.

如果管理不当，皮肤效应可能导致导线过热。

2.The skin effect is more pronounced in AC systems than in DC systems.

在交流系统中，皮肤效应比在直流系统中更为明显。

3.To minimize losses due to the skin effect, thicker wires are often used in power transmission.

为了减少由于皮肤效应造成的损失，电力传输中通常使用较粗的导线。

4.The skin effect in electrical conductors causes current to flow mainly at the surface, leading to increased resistance.

电导体中的皮肤效应导致电流主要在表面流动，从而增加了电阻。

5.Engineers must account for the skin effect when designing high-frequency circuits.

工程师在设计高频电路时必须考虑皮肤效应。

作文

The phenomenon known as skin effect is an important concept in the field of electrical engineering and physics. It refers to the tendency of alternating current (AC) to distribute itself unevenly within a conductor, such that the current density is highest near the surface of the conductor and decreases exponentially with greater depths. This effect becomes more pronounced at higher frequencies, leading to significant implications for the design and operation of electrical systems.To better understand the skin effect and its implications, we must first consider how electricity flows through conductors. In direct current (DC) systems, the current flows uniformly throughout the entire cross-section of the conductor. However, in AC systems, the situation changes dramatically due to the changing nature of the current. As the frequency of the alternating current increases, the effective area through which the current can flow decreases, resulting in a higher concentration of current near the surface of the conductor.One of the key factors contributing to the skin effect is the phenomenon of electromagnetic induction. When an alternating current flows through a conductor, it generates a magnetic field that induces eddy currents within the material. These eddy currents create opposing magnetic fields that effectively push the main current towards the surface of the conductor. As a result, the depth at which the current can penetrate into the conductor decreases with increasing frequency.The implications of the skin effect are particularly significant in high-frequency applications, such as radio frequency (RF) transmission and microwave engineering. In these applications, engineers must take into account the reduced effective cross-sectional area of conductors when designing circuits and components. For instance, using thicker wires may be necessary to compensate for the increased resistance caused by the skin effect. Additionally, specialized techniques, such as using litz wire, can help mitigate the impact of this phenomenon by incorporating multiple strands of wire that reduce the overall resistance.In summary, the skin effect is a crucial consideration in the design and analysis of electrical systems that operate at alternating currents, especially at high frequencies. Understanding this phenomenon allows engineers to make informed decisions about material selection, wire sizing, and circuit design to ensure optimal performance. As technology continues to advance and the demand for high-frequency applications grows, a deeper understanding of the skin effect will remain essential for electrical engineers and researchers alike.In Chinese, the term skin effect can be translated as "皮肤效应", which captures the essence of the phenomenon where the current tends to flow predominantly on the surface of the conductor rather than penetrating deeply into it. This translation highlights the importance of recognizing how current behaves differently in AC systems compared to DC systems, and it emphasizes the need for careful consideration in engineering practices.

被称为皮肤效应的现象是电气工程和物理学领域的重要概念。它指的是交流电（AC）在导体内部分布不均匀的倾向，使得电流密度在导体表面附近最高，并随着深度的增加而指数级下降。这个效应在高频率下变得更加明显，对电气系统的设计和运行产生了重要影响。为了更好地理解皮肤效应及其影响，我们首先必须考虑电流如何在导体中流动。在直流电（DC）系统中，电流均匀地流经导体的整个横截面。然而，在交流电系统中，情况发生了显著变化，这是由于电流的变化特性。当交流电的频率增加时，电流可以流动的有效面积减少，导致电流在导体表面附近的浓度更高。造成皮肤效应的一个关键因素是电磁感应现象。当交流电流通过导体时，它会产生一个磁场，从而在材料内部诱导出涡流。这些涡流产生相反的磁场，有效地将主电流推向导体的表面。因此，随着频率的增加，电流能够渗透到导体中的深度减少。皮肤效应的影响在高频应用中尤为显著，例如无线电频率（RF）传输和微波工程。在这些应用中，工程师必须考虑导体的有效横截面积减少的问题，在设计电路和组件时。例如，可能需要使用更粗的电线来补偿由于皮肤效应引起的电阻增加。此外，使用多股线的特殊技术，如绞合线，可以通过减少整体电阻来帮助减轻这一现象的影响。总之，皮肤效应是设计和分析在交流电下运行的电气系统时必须考虑的关键因素，尤其是在高频情况下。理解这一现象使工程师能够对材料选择、导线尺寸和电路设计做出明智的决策，以确保最佳性能。随着技术的不断进步和对高频应用需求的增长，对皮肤效应的更深入理解将继续对电气工程师和研究人员至关重要。在中文中，术语皮肤效应可以翻译为“皮肤效应”，这捕捉了电流倾向于主要在导体表面流动而不是深入其内部的现象的本质。这个翻译强调了认识到交流电系统中电流行为与直流电系统不同的重要性，并强调在工程实践中需要仔细考虑。