hysteresis loop

简明释义

磁滞回线

英英释义

例句

1.The size of the hysteresis loop indicates the energy loss in a magnetic material during a cycle.

在一个周期内，滞后回线的大小表示磁性材料中的能量损失。

2.The hysteresis loop in magnetic materials illustrates how magnetization depends on the history of the applied magnetic field.

磁性材料中的滞后回线展示了磁化如何依赖于施加的磁场历史。

3.The hysteresis loop is crucial for understanding the behavior of ferromagnetic materials.

理解铁磁材料的行为时，滞后回线至关重要。

4.Engineers often analyze the hysteresis loop to optimize the performance of electromagnets.

工程师们通常分析滞后回线以优化电磁铁的性能。

5.In the context of control systems, the hysteresis loop can prevent rapid switching between states.

在控制系统的背景下，滞后回线可以防止在状态之间快速切换。

作文

The concept of a hysteresis loop is fundamental in understanding various physical phenomena, particularly in the fields of physics and engineering. To begin with, hysteresis refers to the lag between input and output in a system, where the output does not immediately follow changes in the input. This behavior is commonly observed in magnetic materials, where the magnetization of a material does not align perfectly with the applied magnetic field. The hysteresis loop visually represents this phenomenon, showing how the magnetic state of a material changes as the magnetic field is varied. In a typical hysteresis loop, we observe that as the magnetic field strength increases, the magnetization of the material also increases until it reaches a saturation point. However, when the magnetic field is decreased, the magnetization does not return to zero but instead follows a different path. This creates a loop-like graph when plotted on a coordinate system where one axis represents the magnetic field strength and the other represents the magnetization. The area within this loop is significant as it indicates the energy lost due to internal friction within the material during one complete cycle of magnetization.The implications of the hysteresis loop extend beyond magnetism; they can be found in various systems, including mechanical systems and thermal processes. For example, in mechanical engineering, materials exhibit hysteresis when subjected to cyclic loading and unloading. The hysteresis loop in this context represents the energy dissipated as heat due to the internal friction between the material's microstructures. Understanding this behavior is crucial for predicting the lifespan and performance of materials used in construction and manufacturing.Moreover, the hysteresis loop concept is also applicable in control systems. In these systems, hysteresis can be used intentionally to avoid rapid cycling of a system’s state. For instance, in temperature control systems, a thermostat may have a hysteresis feature to prevent constant switching on and off as the temperature fluctuates around a set point. This application of the hysteresis loop helps maintain stability and reduces wear on the system components.In conclusion, the hysteresis loop is a powerful tool for understanding the behavior of various systems under changing conditions. Its significance lies not only in its ability to illustrate the energy losses in materials but also in its broader applications across different fields. By grasping the principles behind the hysteresis loop, we can better design and optimize systems for efficiency and reliability, ultimately contributing to advancements in technology and engineering. As we continue to explore the complexities of physical systems, the hysteresis loop will undoubtedly remain a key concept in our journey of discovery and innovation.

“滞后回线”的概念对于理解各种物理现象至关重要，特别是在物理和工程领域。首先，滞后指的是系统中输入与输出之间的滞后，其中输出并不立即跟随输入的变化。这种行为通常在磁性材料中观察到，其中材料的磁化并不完全与施加的磁场对齐。“滞后回线”直观地表示了这一现象，显示了当磁场变化时材料的磁态如何变化。在典型的“滞后回线”中，我们观察到随着磁场强度的增加，材料的磁化也增加，直到达到饱和点。然而，当磁场减小时，磁化并不会返回零，而是沿着不同的路径返回。这在坐标系统中绘制时形成一个环状图形，其中一个轴代表磁场强度，另一个轴代表磁化。这个环内的面积是重要的，因为它表示在一个完整的磁化循环中由于材料内部摩擦而损失的能量。“滞后回线”的影响超越了磁性材料；它们可以在各种系统中找到，包括机械系统和热过程。例如，在机械工程中，当材料受到循环加载和卸载时，材料会表现出滞后。在这种情况下，“滞后回线”表示由于材料微结构之间的内部摩擦而以热量形式耗散的能量。理解这种行为对于预测用于建筑和制造的材料的使用寿命和性能至关重要。此外，“滞后回线”概念在控制系统中也有应用。在这些系统中，滞后可以被故意使用，以避免系统状态的快速切换。例如，在温度控制系统中，恒温器可能具有滞后特性，以防止温度在设定点附近波动时不断开关。这种“滞后回线”的应用有助于维持稳定性，并减少系统组件的磨损。总之，“滞后回线”是理解各种系统在变化条件下行为的强大工具。它的重要性不仅在于能够说明材料中的能量损失，也在于其在不同领域的广泛应用。通过掌握“滞后回线”背后的原理，我们可以更好地设计和优化系统，以提高效率和可靠性，从而最终促进技术和工程的进步。随着我们继续探索物理系统的复杂性，“滞后回线”无疑将继续成为我们发现和创新旅程中的关键概念。