core loss

简明释义

铁芯损耗

英英释义

例句

1.Engineers are constantly looking for ways to reduce core loss in electric motors.

工程师们一直在寻找减少电动机中铁心损耗的方法。

2.The new design significantly lowers core loss compared to the previous model.

新设计相比于之前的型号显著降低了铁心损耗。

3.High-frequency operations can increase core loss in magnetic materials.

高频操作会增加磁性材料中的铁心损耗。

4.The transformer design must minimize core loss to improve efficiency.

变压器设计必须尽量减少铁心损耗以提高效率。

5.Testing showed that core loss was a major factor in the system's overall efficiency.

测试显示，铁心损耗是系统整体效率的一个主要因素。

作文

In the field of electrical engineering, the term core loss refers to the energy lost in the magnetic core of transformers and inductors due to alternating magnetic fields. This phenomenon is crucial for engineers to understand, as it directly affects the efficiency and performance of electrical devices. The core loss can be divided into two main components: hysteresis loss and eddy current loss. Hysteresis loss occurs due to the lagging of magnetic domains in the core material when the magnetic field changes direction. This lagging results in energy being dissipated as heat. On the other hand, eddy current loss is caused by circulating currents induced within the core material itself, which also leads to energy loss in the form of heat.Understanding core loss is essential when designing transformers, as it influences the overall efficiency of the device. High core loss can lead to increased operational costs and reduced lifespan of the equipment. Engineers often select core materials with low hysteresis loss and design the core geometry to minimize eddy currents. For instance, using laminated cores instead of solid cores can significantly reduce eddy current losses, as the laminations restrict the flow of these currents.Moreover, the impact of core loss extends beyond just transformers. It is a critical factor in various electrical devices, including motors and generators. In electric motors, core loss contributes to the overall losses that can affect torque and efficiency. Therefore, optimizing core loss is vital for enhancing the performance of these machines.In practical applications, engineers use various techniques to measure and analyze core loss. One common method is to perform tests under different frequencies and magnetic flux densities to determine the specific losses associated with a particular core material. This data helps in selecting the right materials and designs that minimize core loss while maximizing efficiency.Additionally, advancements in material science have led to the development of new core materials that exhibit lower core loss. For example, amorphous steel and ferrite materials are known for their excellent magnetic properties and reduced losses. The adoption of these materials in modern electrical devices has resulted in significant improvements in energy efficiency and performance.In conclusion, understanding core loss is fundamental for anyone involved in electrical engineering. It plays a crucial role in the design and operation of transformers, motors, and other electrical devices. By minimizing core loss, engineers can enhance the efficiency, reliability, and lifespan of these systems, ultimately contributing to more sustainable energy consumption. As technology continues to advance, ongoing research and innovation will further improve our understanding of core loss and its implications in the electrical engineering field.

在电气工程领域，术语核心损耗指的是由于交变磁场而在变压器和电感器的磁芯中损失的能量。这一现象对于工程师来说至关重要，因为它直接影响到电气设备的效率和性能。核心损耗可以分为两个主要组成部分：滞后损耗和涡流损耗。滞后损耗是由于磁芯材料中的磁畴在磁场变化方向时滞后造成的。这种滞后导致能量以热量的形式被耗散。另一方面，涡流损耗是由在磁芯材料内部感应出的循环电流引起的，这也导致能量以热量的形式损失。理解核心损耗在设计变压器时至关重要，因为它影响设备的整体效率。高核心损耗可能导致运营成本增加和设备寿命减少。工程师通常选择具有低滞后损耗的核心材料，并设计核心几何形状以最小化涡流。例如，使用层压核心而不是实心核心可以显著减少涡流损耗，因为层压结构限制了这些电流的流动。此外，核心损耗的影响不仅限于变压器。它是各种电气设备中的关键因素，包括电动机和发电机。在电动机中，核心损耗会影响整体损耗，从而影响扭矩和效率。因此，优化核心损耗对提高这些机器的性能至关重要。在实际应用中，工程师使用各种技术来测量和分析核心损耗。一种常见的方法是在不同频率和磁通密度下进行测试，以确定与特定核心材料相关的具体损耗。这些数据有助于选择合适的材料和设计，以在最大化效率的同时最小化核心损耗。此外，材料科学的进步导致了新型核心材料的发展，这些材料表现出较低的核心损耗。例如，非晶钢和铁氧体材料因其优良的磁性能和降低的损耗而受到青睐。这些材料在现代电气设备中的应用显著改善了能源效率和性能。总之，理解核心损耗对于任何参与电气工程的人而言都是基础。它在变压器、电动机和其他电气设备的设计和操作中发挥着关键作用。通过最小化核心损耗，工程师可以提高这些系统的效率、可靠性和使用寿命，最终促进更可持续的能源消耗。随着技术的不断进步，持续的研究和创新将进一步增强我们对核心损耗及其在电气工程领域影响的理解。