eddy current

简明释义

涡电流

英英释义

例句

1.In non-destructive testing, eddy current 涡流 testing can identify surface cracks in metal components.

在无损检测中，涡流检测可以识别金属部件表面的裂纹。

2.The principle of eddy current 涡流 induction is used in induction heating applications.

在感应加热应用中使用了涡流感应的原理。

3.An eddy current 涡流 sensor can measure the distance between the sensor and a conductive surface.

一个涡流传感器可以测量传感器与导电表面之间的距离。

4.Electric motors often utilize eddy current 涡流 braking systems for efficient energy dissipation.

电动机通常利用涡流制动系统进行有效的能量消散。

5.The metal detector uses eddy current 涡流 technology to locate buried objects.

金属探测器使用涡流技术来定位埋藏物体。

作文

Eddy currents are a fascinating phenomenon in the field of electromagnetism. These currents are loops of electrical current that are induced within conductors by a changing magnetic field, according to Faraday's law of electromagnetic induction. When a conductor, such as a metal plate, is exposed to a varying magnetic field, it generates swirling currents that flow in closed loops. This effect can be observed in various applications, from induction heating to magnetic braking systems. The term eddy current (涡流) refers specifically to these circulating currents that can lead to energy losses in electrical systems due to resistive heating.One of the most common applications of eddy currents (涡流) is in induction cooking. In this method, a coil of wire is placed beneath a cooking surface. When an alternating current flows through the coil, it creates a changing magnetic field that induces eddy currents (涡流) in the metal cookware placed on top. These currents generate heat directly in the pot, allowing for efficient cooking without heating the surface itself. This technology not only saves energy but also enhances safety, as the cooking surface remains relatively cool.Another significant application of eddy currents (涡流) is in non-destructive testing. Engineers use this principle to detect flaws in metal structures without causing any damage. By passing a magnetic field over a conductor and measuring the resulting eddy currents (涡流), technicians can identify cracks or other imperfections. This technique is invaluable in industries such as aerospace and automotive, where safety is paramount.While eddy currents (涡流) have many beneficial applications, they can also pose challenges. In transformers and electric motors, eddy currents (涡流) can lead to energy losses, reducing efficiency. To mitigate these losses, engineers design components using laminated magnetic materials, which restrict the flow of eddy currents (涡流) and improve overall performance. This careful design consideration is crucial for optimizing energy usage in electrical devices.In conclusion, eddy currents (涡流) represent an important concept in electromagnetism with both positive and negative implications. Their ability to generate heat efficiently has led to innovative cooking technologies, while their use in non-destructive testing ensures the integrity of critical structures. However, understanding and managing the challenges posed by eddy currents (涡流) is essential for improving the efficiency of electrical systems. As technology advances, the study of eddy currents (涡流) will continue to play a vital role in the development of more efficient and safer electrical devices.

涡流是电磁学领域一个引人入胜的现象。这些电流是在导体内部因变化的磁场而产生的电流环，依据法拉第电磁感应定律。当导体（如金属板）暴露于变化的磁场时，会产生在闭合回路中流动的涡旋电流。这种效应可以在各种应用中观察到，从感应加热到磁制动系统。术语eddy current（涡流）专门指这些循环电流，这些电流可能导致由于电阻加热而在电气系统中造成能量损失。eddy currents（涡流）最常见的应用之一是感应烹饪。在这种方法中，一根线圈被放置在烹饪表面下方。当交流电流通过线圈时，会产生一个变化的磁场，从而在放置在顶部的金属炊具中诱导出eddy currents（涡流）。这些电流直接在锅中产生热量，使得加热效率高，而不会加热表面本身。这项技术不仅节省了能源，还增强了安全性，因为烹饪表面保持相对凉爽。eddy currents（涡流）的另一个重要应用是在无损检测中。工程师利用这一原理检测金属结构中的缺陷，而不造成任何损害。通过在导体上施加磁场并测量生成的eddy currents（涡流），技术人员可以识别裂缝或其他缺陷。这一技术在航空航天和汽车等行业中至关重要，因为安全至关重要。虽然eddy currents（涡流）有许多有益的应用，但它们也可能带来挑战。在变压器和电动机中，eddy currents（涡流）可能导致能量损失，降低效率。为了减轻这些损失，工程师使用层压磁材料设计组件，这限制了eddy currents（涡流）的流动，并改善整体性能。这种精心的设计考虑对于优化电气设备中的能量使用至关重要。总之，eddy currents（涡流）代表了电磁学中的一个重要概念，具有正面和负面的影响。它们高效产生热量的能力催生了创新的烹饪技术，而它们在无损检测中的应用确保了关键结构的完整性。然而，理解和管理eddy currents（涡流）带来的挑战对于提高电气系统的效率至关重要。随着科技的进步，eddy currents（涡流）的研究将继续在开发更高效和更安全的电气设备中发挥重要作用。