eddy current

简明释义

涡旋流

英英释义

例句

1.The design of the motor takes into account the effects of eddy currents 涡流 to minimize energy loss.

电机的设计考虑了涡流的影响，以最小化能量损失。

2.In non-destructive testing, eddy currents 涡流 are used to detect surface cracks in metals.

在无损检测中，涡流用于检测金属表面的裂纹。

3.The heating effect caused by eddy currents 涡流 is utilized in induction cooktops.

由涡流引起的加热效应被用于感应炉。

4.Engineers must consider eddy currents 涡流 when designing transformers to improve efficiency.

工程师在设计变压器时必须考虑涡流以提高效率。

5.The eddy current 涡流 braking system allows for smoother stops in trains.

涡流制动系统使火车的停车更平稳。

作文

Eddy currents are a fascinating phenomenon in the field of electromagnetism. They are loops of electric 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 these currents in circular paths. The term eddy current (涡流) describes these swirling currents, which can have both beneficial and detrimental effects depending on the application. In many industrial applications, eddy currents (涡流) are utilized for non-destructive testing and material characterization. For example, when inspecting metal components, engineers can use eddy current (涡流) testing to detect flaws or cracks without damaging the material. This method is particularly useful in the aerospace and automotive industries, where the integrity of materials is crucial for safety. By measuring the strength and behavior of the eddy currents (涡流) generated in a material, technicians can determine its conductivity and detect any irregularities. However, eddy currents (涡流) also pose challenges in electrical systems, particularly in transformers and electric motors. These currents can cause energy losses in the form of heat, reducing the efficiency of devices. This phenomenon is known as 'eddy current loss.' To mitigate this issue, engineers often employ laminated magnetic cores in transformers and other devices to minimize the formation of eddy currents (涡流). By using thin layers of conductive material, they can restrict the flow of eddy currents (涡流), thereby enhancing the overall efficiency of the system. Another interesting application of eddy currents (涡流) is in induction heating. This process involves passing an alternating current through a coil, creating a rapidly changing magnetic field. When a conductive material is placed within this field, eddy currents (涡流) are induced, generating heat due to the resistance of the material. This technique is widely used for melting metals, cooking, and even in some medical applications. The ability to heat materials quickly and efficiently makes induction heating an attractive option in various industries. In conclusion, eddy currents (涡流) are an essential concept in electromagnetism with a wide range of applications. While they can lead to energy losses, their benefits in non-destructive testing and induction heating demonstrate their significance in modern technology. Understanding the principles behind eddy currents (涡流) enables engineers and scientists to harness their potential while minimizing their drawbacks. As technology continues to evolve, the role of eddy currents (涡流) will undoubtedly expand, leading to new innovations and improved efficiencies in various fields.

涡流是电磁学领域中的一个迷人现象。它们是在导体内部因变化的磁场而诱导出的电流环，依据法拉第电磁感应定律。当导体（如金属板）暴露在变化的磁场中时，会在其内部产生这些沿圆形路径流动的电流。术语eddy current（涡流）描述了这些旋转的电流，根据应用的不同，它们可能具有有益或有害的效果。在许多工业应用中，eddy currents（涡流）被用于无损检测和材料特性鉴定。例如，在检查金属部件时，工程师可以使用eddy current（涡流）测试来检测缺陷或裂缝，而不会损坏材料。这种方法在航空航天和汽车行业中特别有用，因为材料的完整性对安全至关重要。通过测量在材料中生成的eddy currents（涡流）的强度和行为，技术人员可以确定其导电性并检测任何不规则之处。然而，eddy currents（涡流）在电气系统中也带来了挑战，特别是在变压器和电动机中。这些电流会以热量的形式导致能量损失，从而降低设备的效率。这种现象被称为“涡流损耗”。为了减轻这个问题，工程师通常在变压器和其他设备中采用层压磁芯，以最小化eddy currents（涡流）的形成。通过使用薄层导电材料，他们可以限制eddy currents（涡流）的流动，从而提高系统的整体效率。另一个有趣的eddy currents（涡流）应用是感应加热。该过程涉及通过线圈传递交流电，创建一个快速变化的磁场。当导电材料置于该磁场中时，会诱导出eddy currents（涡流），由于材料的电阻而产生热量。这项技术广泛用于熔化金属、烹饪，甚至在一些医疗应用中。快速高效地加热材料的能力使感应加热在各个行业中成为一种有吸引力的选择。总之，eddy currents（涡流）是电磁学中的一个基本概念，具有广泛的应用。尽管它们可能导致能量损失，但在无损检测和感应加热中的好处展示了它们在现代技术中的重要性。理解eddy currents（涡流）背后的原理使工程师和科学家能够利用它们的潜力，同时最小化其缺点。随着技术的不断发展，eddy currents（涡流）的作用无疑会扩大，从而在各个领域带来新的创新和改进的效率。