hysteresis loop

简明释义

磁滞回线

英英释义

例句

1.The size of the hysteresis loop can provide insights into the damping characteristics of a material.

滞后回线的大小可以提供有关材料阻尼特性的见解。

2.Engineers often study the hysteresis loop when designing materials for applications that require energy absorption.

工程师在设计需要能量吸收的应用材料时，通常会研究滞后回线。

3.The magnetic properties of the material can be analyzed by examining its hysteresis loop, which indicates how the material responds to external magnetic fields.

通过分析材料的滞后回线，可以研究其磁性特征，这表明材料如何响应外部磁场。

4.In a stress-strain curve, the hysteresis loop represents the energy lost during loading and unloading cycles.

在应力-应变曲线中，滞后回线代表了加载和卸载周期中损失的能量。

5.The hysteresis loop for ferromagnetic materials is typically wider than that for paramagnetic materials.

铁磁材料的滞后回线通常比顺磁材料的更宽。

作文

The concept of the hysteresis loop is fundamental in understanding various physical phenomena, particularly in the fields of physics and engineering. A hysteresis loop refers to the graphical representation of the relationship between two variables, typically showing how one variable lags behind another. This phenomenon is commonly observed in magnetic materials, where the magnetization of a material does not immediately respond to changes in the applied magnetic field. Instead, it takes time for the material to adjust, resulting in a loop-shaped graph when plotting magnetization against the magnetic field strength. To illustrate this further, consider a simple experiment with a ferromagnetic material. When an external magnetic field is applied, the material becomes magnetized. However, once the external field is removed, the material retains some magnetization due to the alignment of its internal magnetic domains. The hysteresis loop is formed when we plot the magnetization against the magnetic field strength during the process of magnetization and demagnetization. This loop not only shows the amount of energy lost as heat due to internal friction but also provides insights into the material's properties, such as coercivity and remanence.The area within the hysteresis loop represents the energy loss per cycle, which is a crucial aspect when designing electrical devices that utilize magnetic materials. For instance, in transformers and electric motors, minimizing this energy loss is essential for improving efficiency. Engineers often seek materials with narrow hysteresis loops to reduce energy wastage and enhance performance.Moreover, the concept of hysteresis loops extends beyond magnetism. It can also be observed in mechanical systems, such as rubber bands or springs, where the deformation of the material does not return to its original shape immediately after the force is removed. This behavior is indicative of energy dissipation and is represented graphically in a similar loop format. Understanding hysteresis loops in these contexts helps engineers and scientists predict how materials will behave under varying conditions, leading to better design and material selection.In summary, the hysteresis loop is a vital concept that aids in comprehending the lagging behavior of materials in response to external stimuli. Whether in magnetism, mechanics, or other fields, recognizing and analyzing hysteresis loops allows for improved efficiency and performance in various applications. As technology continues to advance, the importance of understanding these loops will only grow, paving the way for innovations in material science and engineering. Therefore, acquiring a solid grasp of the hysteresis loop and its implications is essential for anyone involved in scientific research or engineering disciplines.

“滞后回线”这一概念在理解各种物理现象中是至关重要的，特别是在物理和工程领域。“滞后回线”指的是两个变量之间关系的图形表示，通常显示一个变量如何滞后于另一个变量。这种现象在磁性材料中常见，其中材料的磁化并不会立即响应施加的磁场变化。相反，材料需要时间进行调整，从而在绘制磁化强度与磁场强度的关系时形成一个环形图。为了进一步说明这一点，考虑一个简单的实验，使用铁磁材料。当施加外部磁场时，材料被磁化。然而，一旦外部场被移除，材料由于其内部磁畴的排列，仍然保持一定的磁化。通过在磁化和去磁过程中绘制磁化强度与磁场强度的关系，形成了“滞后回线”。这个回线不仅显示了由于内部摩擦而造成的能量损失，还提供了关于材料性质的见解，例如矫顽力和剩余磁化。“滞后回线”内部的面积代表每个周期的能量损失，这是在设计利用磁性材料的电气设备时的关键方面。例如，在变压器和电动机中，最小化这种能量损失对于提高效率至关重要。工程师们通常寻求具有窄“滞后回线”的材料，以减少能量浪费并增强性能。此外，“滞后回线”的概念不仅限于磁性。在机械系统中也可以观察到，例如橡皮筋或弹簧，当施加的力移除后，材料的形变不会立即恢复到原始形状。这种行为表明能量耗散，并以类似的回线格式在图形上表示。在这些背景下理解“滞后回线”帮助工程师和科学家预测材料在不同条件下的行为，从而实现更好的设计和材料选择。总之，“滞后回线”是一个重要的概念，有助于理解材料对外部刺激的滞后行为。无论是在磁性、机械还是其他领域，认识和分析“滞后回线”都能改善各种应用中的效率和性能。随着技术的不断进步，理解这些回线的重要性只会增加，为材料科学和工程领域的创新铺平道路。因此，掌握“滞后回线”及其影响，对于任何参与科学研究或工程学科的人来说都是至关重要的。