dielectric polarization

简明释义

电介质极化

英英释义

例句

1.In high-frequency applications, dielectric polarization can lead to energy losses.

在高频应用中，介电极化可能导致能量损失。

2.The concept of dielectric polarization is crucial in understanding how capacitors store energy.

理解电容器如何储存能量的过程中，介电极化的概念至关重要。

3.Materials with high dielectric polarization are often used in the manufacturing of insulators.

具有高介电极化的材料通常用于绝缘体的制造。

4.Understanding dielectric polarization is essential for improving the performance of RF circuits.

理解介电极化对于提高射频电路的性能至关重要。

5.The study of dielectric polarization helps engineers design better electronic devices.

对介电极化的研究帮助工程师设计更好的电子设备。

作文

Dielectric materials are insulators that can be polarized by an electric field. This phenomenon is known as dielectric polarization (电介质极化). When a dielectric material is placed in an electric field, the positive and negative charges within the material shift slightly, creating small dipoles. These dipoles align themselves with the external electric field, resulting in a net polarization of the material. This process is crucial in various applications, including capacitors, where dielectric polarization (电介质极化) enhances the storage capacity of electric charge.The concept of dielectric polarization (电介质极化) can be better understood by examining the behavior of molecules in a dielectric material. Many dielectric substances are made up of polar molecules, which possess a permanent dipole moment due to the unequal distribution of electrons. When an external electric field is applied, these polar molecules tend to align themselves along the direction of the field. Non-polar molecules, on the other hand, can still exhibit dielectric polarization (电介质极化) through induced dipoles, where the electron cloud around the nucleus shifts in response to the electric field.The degree of dielectric polarization (电介质极化) in a material is quantified by its dielectric constant, a dimensionless number that indicates how easily a material can be polarized. A higher dielectric constant means that the material can store more electric energy when subjected to an electric field. This property is essential in the design of electronic components such as capacitors, where the choice of dielectric material directly impacts performance.Moreover, dielectric polarization (电介质极化) plays a significant role in the propagation of electromagnetic waves. When an electromagnetic wave travels through a dielectric medium, the wave interacts with the material's molecular structure, leading to polarization effects. This interaction affects the speed and attenuation of the wave, which is critical in telecommunications and radar technology.In addition to its applications in electronics and telecommunications, dielectric polarization (电介质极化) is also important in understanding natural phenomena. For instance, in geology, the concept helps explain how certain rocks can store electric charge, influencing the Earth's electric field. Similarly, in biology, dielectric polarization (电介质极化) is relevant in studying the behavior of cells in an electric field, which has implications for medical treatments such as electroporation.In conclusion, dielectric polarization (电介质极化) is a fundamental concept in physics and engineering, with wide-ranging implications in technology and nature. By understanding how materials respond to electric fields, we can harness their properties for various applications, from improving electronic devices to exploring the mysteries of the Earth and living organisms. As technology continues to advance, the study of dielectric polarization (电介质极化) will remain a vital area of research, paving the way for innovative solutions in multiple fields.