dielectric displacement

简明释义

介质位移

英英释义

例句

1.In a parallel plate capacitor, the dielectric displacement can be calculated using the electric field and the permittivity of the material.

在平行板电容器中，可以使用电场和材料的介电常数计算介电位移。

2.Understanding dielectric displacement is crucial for optimizing the performance of RF circuits.

理解介电位移对于优化射频电路的性能至关重要。

3.When an electric field is applied, the dielectric displacement increases proportionally to the field strength.

当施加电场时，介电位移会与场强成正比增加。

4.The formula for dielectric displacement helps engineers design better insulating materials.

用于介电位移的公式帮助工程师设计更好的绝缘材料。

5.The concept of dielectric displacement is essential in understanding how capacitors store energy.

理解电容器如何储存能量时，介电位移的概念至关重要。

作文

In the field of electromagnetism, the concept of dielectric displacement plays a crucial role in understanding how electric fields interact with materials. When an electric field is applied to a dielectric material, the material becomes polarized. This polarization occurs because the positive and negative charges within the material are displaced slightly from their equilibrium positions. The result is what we refer to as dielectric displacement, which can be defined as the measure of the separation of positive and negative charges within the dielectric under the influence of an external electric field. This phenomenon is essential for the functioning of capacitors, insulators, and various electronic devices.Dielectric materials are insulators that can be polarized by an electric field. When a dielectric is placed in an electric field, the field induces a dipole moment in the material, leading to the aforementioned dielectric displacement. This displacement is quantified by the vector D, known as the electric displacement field, which relates to the electric field E and the polarization P of the dielectric material. Mathematically, this relationship is expressed as D = ε₀E + P, where ε₀ is the permittivity of free space. Understanding this equation is fundamental for engineers and physicists working with electrical systems.The significance of dielectric displacement extends beyond theoretical applications; it has practical implications in designing electronic components. For instance, in capacitors, the ability of the dielectric material to store energy depends on its dielectric constant, which is influenced by the degree of dielectric displacement. A higher dielectric constant indicates that the material can be polarized more easily, thus allowing for greater energy storage capacity. This principle is utilized in various technologies, including smartphones, computers, and power supply systems.Moreover, the study of dielectric displacement is vital in the context of materials science. Researchers are continually exploring new dielectric materials that exhibit enhanced properties, such as higher breakdown voltages or improved thermal stability. By manipulating the molecular structure of these materials, scientists aim to optimize dielectric displacement characteristics, leading to advancements in high-performance electronics and sustainable energy solutions.In conclusion, dielectric displacement is a fundamental concept in electromagnetism that describes how materials respond to electric fields. Its implications are vast, influencing the design and functionality of numerous electronic devices and systems. Whether in the development of new materials or the enhancement of existing technologies, a deep understanding of dielectric displacement is essential for anyone involved in the field of electronics and materials science. As technology continues to advance, the importance of studying and applying the principles of dielectric displacement will only grow, paving the way for innovative solutions to modern challenges.

在电磁学领域，电介质位移的概念在理解电场与材料之间的相互作用中起着至关重要的作用。当电场施加到电介质材料上时，该材料会被极化。这种极化发生是因为材料内部的正负电荷在外部电场的影响下稍微偏离其平衡位置。结果就是我们所称的电介质位移，它可以定义为在外部电场的影响下，电介质内正负电荷分离的度量。这种现象对于电容器、绝缘体和各种电子设备的功能至关重要。电介质材料是可以被电场极化的绝缘体。当电介质放置在电场中时，电场在材料中激发出偶极矩，导致前述的电介质位移。这种位移通过向量D来量化，称为电位移场，它与电介质材料的电场E和极化P有关。这个关系在数学上表示为D = ε₀E + P，其中ε₀是自由空间的电容率。理解这个方程对从事电气系统工作的工程师和物理学家来说是基础。电介质位移的重要性超越了理论应用；它在电子元件设计中具有实际意义。例如，在电容器中，电介质材料储存能量的能力取决于其电介质常数，而电介质常数又受到电介质位移程度的影响。更高的电介质常数表明材料可以更容易地被极化，从而允许更大的能量储存能力。这个原理被应用于包括智能手机、计算机和电源系统在内的各种技术中。此外，研究电介质位移在材料科学中至关重要。研究人员不断探索表现出增强特性的新的电介质材料，例如更高的击穿电压或改善的热稳定性。通过操控这些材料的分子结构，科学家们旨在优化电介质位移特性，从而推动高性能电子产品和可持续能源解决方案的发展。总之，电介质位移是电磁学中的一个基本概念，描述了材料如何响应电场。它的影响广泛，影响着许多电子设备和系统的设计和功能。无论是在新材料的开发还是现有技术的增强方面，深入理解电介质位移对任何从事电子学和材料科学领域的人来说都是至关重要的。随着技术的不断进步，研究和应用电介质位移原理的重要性只会增加，为应对现代挑战铺平道路。