magnetic hysteresis

简明释义

磁带

英英释义

例句

1.In magnetic materials, magnetic hysteresis can lead to energy loss during cycles of magnetization.

在磁性材料中，磁滞可能导致在磁化循环过程中能量损失。

2.The concept of magnetic hysteresis is crucial in designing transformers, as it affects their efficiency.

在设计变压器时，磁滞的概念至关重要，因为它影响变压器的效率。

3.The magnetic hysteresis loop provides a visual representation of a material's magnetic properties.

磁滞环提供了材料磁性特性的可视化表示。

4.Engineers must consider magnetic hysteresis when selecting materials for electric motors.

工程师在选择电动机材料时必须考虑磁滞。

5.Understanding magnetic hysteresis is essential for improving the performance of magnetic storage devices.

理解磁滞对于提高磁存储设备的性能至关重要。

作文

Magnetic hysteresis is a phenomenon that occurs in ferromagnetic materials when they are subjected to an external magnetic field. This effect is crucial in understanding how these materials respond to changes in magnetic fields over time. When a ferromagnetic material is magnetized, it retains some of its magnetization even after the external magnetic field is removed. This retention of magnetization is what we refer to as magnetic hysteresis (磁滞现象). The area enclosed by the hysteresis loop on a graph plotting magnetization against the applied magnetic field strength represents the energy loss due to this phenomenon. To better understand magnetic hysteresis (磁滞现象), let's consider the example of a simple bar magnet. When you apply a magnetic field to the bar magnet, it becomes magnetized. However, if you remove the magnetic field, the magnet does not return to its original state immediately. Instead, it retains some magnetization. This characteristic is essential in various applications, such as in transformers and magnetic storage devices. The hysteresis loop is a graphical representation of the relationship between the magnetic field strength and the magnetization of a material. The loop illustrates how the magnetization lags behind the applied magnetic field, leading to energy losses in the form of heat. The larger the area of the hysteresis loop, the more energy is lost during the magnetization and demagnetization processes. This aspect of magnetic hysteresis (磁滞现象) is particularly important for engineers and scientists when designing magnetic materials for specific applications. In practical applications, magnetic hysteresis (磁滞现象) plays a significant role in the efficiency of electrical devices. For instance, in transformers, the core material must have low hysteresis loss to minimize energy waste. Materials with high permeability and low coercivity are preferred because they can be magnetized easily and demagnetized quickly, leading to lower energy losses. In contrast, materials with high hysteresis losses are less efficient and can lead to overheating in electrical devices. Additionally, magnetic hysteresis (磁滞现象) is also relevant in the field of data storage. Hard drives and magnetic tapes rely on the principles of hysteresis to store information. The ability of a material to retain its magnetization allows for the long-term storage of data. Understanding the hysteresis properties of these materials enables manufacturers to improve the performance and reliability of data storage devices. In conclusion, magnetic hysteresis (磁滞现象) is a fundamental concept in magnetism that describes the lagging behavior of magnetization in ferromagnetic materials when subjected to changing magnetic fields. Its implications are vast, affecting the design and efficiency of various electrical devices and data storage technologies. By comprehending the principles of magnetic hysteresis (磁滞现象), we can enhance the performance of magnetic materials and develop more efficient technologies in the future.