eddy current

简明释义

涡羚流

英英释义

例句

1.The heating effect of eddy currents 涡流 is utilized in induction cooktops.

感应炉利用涡流的加热效果。

2.In magnetic braking systems, eddy currents 涡流 are induced to slow down the moving parts.

在磁制动系统中，产生涡流以减缓运动部件的速度。

3.The eddy current 涡流 losses in transformers can significantly affect their efficiency.

变压器中的涡流损耗会显著影响其效率。

4.Engineers use eddy currents 涡流 for non-destructive testing to detect flaws in metal structures.

工程师使用涡流进行无损检测，以发现金属结构中的缺陷。

5.The induction motor operates based on the principle of eddy currents 涡流 generated in the rotor.

感应电动机的工作原理是基于转子中产生的涡流。

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 named after the swirling patterns that these currents form, resembling eddies in a fluid. Understanding eddy current (涡流) is essential in various applications, particularly in the fields of electromagnetism and engineering.The concept of eddy current (涡流) can be observed in many everyday devices. For instance, in induction cooktops, the heat generated for cooking is produced by eddy currents (涡流) flowing through the metal cookware. When an alternating current flows through the induction coil, it creates a magnetic field that induces eddy currents (涡流) in the pot or pan placed above it. These currents flow in circular paths, generating heat due to the resistance of the metal. This principle not only makes cooking faster but also enhances energy efficiency, as the heat is generated directly in the cookware rather than being transferred from a burner.Another significant application of eddy currents (涡流) is in non-destructive testing (NDT). Engineers and technicians use eddy current (涡流) testing to detect flaws in conductive materials without causing any damage. By passing an alternating current through a coil near the material, a changing magnetic field is created, which induces eddy currents (涡流) in the material itself. Any discontinuities or defects, such as cracks or corrosion, will disrupt the flow of these currents, allowing inspectors to identify potential issues. This technique is widely used in industries such as aerospace, automotive, and manufacturing to ensure the integrity and safety of components.However, eddy currents (涡流) are not always beneficial. In some cases, they can lead to energy losses in electrical machines and transformers. When a magnetic field changes within a conductor, it induces eddy currents (涡流) that flow against the intended direction of current, resulting in wasted energy in the form of heat. To mitigate these losses, engineers design electrical components with laminated cores or use materials with high electrical resistivity. These strategies help reduce the magnitude of eddy currents (涡流) and improve the efficiency of devices.In conclusion, understanding eddy currents (涡流) is crucial for both practical applications and theoretical studies in electromagnetism. Whether enhancing cooking efficiency, ensuring the safety of critical components through non-destructive testing, or improving the performance of electrical devices, eddy currents (涡流) play a vital role in modern technology. As we continue to innovate and develop new technologies, the study of eddy currents (涡流) will remain an important area of research, contributing to advancements across various fields.

涡流是在导体内部因导体内变化的磁场而产生的电流环。这一现象以这些电流形成的旋涡状图案命名，类似于流体中的涡流。理解涡流（eddy current）在各种应用中至关重要，特别是在电磁学和工程领域。涡流的概念可以在许多日常设备中观察到。例如，在电磁炉中，烹饪所需的热量是通过在金属炊具中产生的涡流（eddy currents）来产生的。当交变电流流过电磁感应线圈时，会产生一个磁场，在其上方放置的锅或平底锅中诱导出涡流（eddy currents）。这些电流沿着圆形路径流动，由于金属的电阻而产生热量。这一原理不仅使烹饪更快，而且提高了能效，因为热量是直接在炊具中产生的，而不是从灶具转移过来的。涡流（eddy currents）的另一个重要应用是无损检测（NDT）。工程师和技术人员使用涡流（eddy current）检测来发现导电材料中的缺陷，而不会造成任何损害。通过将交变电流传递通过靠近材料的线圈，会创建一个变化的磁场，从而在材料本身中诱导出涡流（eddy currents）。任何不连续性或缺陷，例如裂缝或腐蚀，都会干扰这些电流的流动，使检查员能够识别潜在问题。这种技术广泛应用于航空航天、汽车制造和制造业等行业，以确保组件的完整性和安全性。然而，涡流（eddy currents）并不总是有利的。在某些情况下，它们会导致电机和变压器中的能量损失。当磁场在导体内变化时，会诱导出与预期电流方向相反的涡流（eddy currents），导致以热量的形式浪费能量。为了减少这些损失，工程师设计带有层压核心的电气组件或使用具有高电阻率的材料。这些策略有助于降低涡流（eddy currents）的幅度，提高设备的效率。总之，理解涡流（eddy currents）对于电磁学的实际应用和理论研究至关重要。无论是提高烹饪效率，通过无损检测确保关键组件的安全性，还是改善电气设备的性能，涡流（eddy currents）在现代技术中发挥着至关重要的作用。随着我们继续创新和开发新技术，涡流（eddy currents）的研究将保持重要的研究领域，为各个领域的进步做出贡献。