complex dielectric permittivity

简明释义

复电容率

英英释义

例句

1.To design effective capacitors, engineers must consider the complex dielectric permittivity 复介电容 of the dielectric material used.

为了设计有效的电容器，工程师必须考虑所用介电材料的complex dielectric permittivity复介电容。

2.Researchers often use a vector network analyzer to measure the complex dielectric permittivity 复介电容 of various substances.

研究人员通常使用矢量网络分析仪来测量各种物质的complex dielectric permittivity复介电容。

3.The measurement of complex dielectric permittivity 复介电容 is essential for understanding material properties at high frequencies.

测量complex dielectric permittivity复介电容对于理解高频材料特性至关重要。

4.The complex dielectric permittivity 复介电容 can provide insights into the loss mechanisms in dielectric materials.

complex dielectric permittivity复介电容可以提供关于介电材料中损耗机制的见解。

5.In microwave applications, the complex dielectric permittivity 复介电容 of materials determines their suitability for use in antennas.

在微波应用中，材料的complex dielectric permittivity复介电容决定了它们在天线中的适用性。

作文

In the field of materials science and electrical engineering, understanding the properties of materials is crucial for various applications, particularly in the design of capacitors, antennas, and other electronic devices. One of the key parameters that describe how a material interacts with electric fields is known as complex dielectric permittivity. This term encompasses both the ability of a material to store electrical energy and its ability to dissipate energy as heat under an alternating electric field. The concept of complex dielectric permittivity can be broken down into two components: the real part and the imaginary part. The real part, often referred to as the 'dielectric constant', indicates how much electric field can be stored in the material. It reflects the material's ability to polarize in response to an applied electric field, which is essential for energy storage applications. On the other hand, the imaginary part represents the 'loss factor', which illustrates how much energy is lost in the form of heat when the material is subjected to an alternating electric field. This loss can be significant in high-frequency applications, where energy efficiency is paramount.To better understand complex dielectric permittivity, one can consider its impact on the performance of capacitors. Capacitors are widely used in electronic circuits to store and release energy. The choice of dielectric material directly influences the capacitor's efficiency and performance. A material with a high real part of complex dielectric permittivity allows for greater energy storage, while a low imaginary part ensures minimal energy loss. Therefore, engineers must carefully select materials that optimize both components of complex dielectric permittivity to enhance the overall performance of electronic devices.Moreover, the measurement of complex dielectric permittivity is essential for characterizing materials. Techniques such as time-domain spectroscopy and frequency-domain spectroscopy allow researchers to determine the dielectric properties of materials across a wide range of frequencies. By analyzing the data obtained from these measurements, scientists can gain insights into the molecular structure and dynamics of materials, which can lead to the development of new materials with tailored dielectric properties.In summary, complex dielectric permittivity is a fundamental concept in the study of materials and their interaction with electric fields. Its two components, the real part and the imaginary part, provide valuable information about a material's ability to store and dissipate energy. Understanding this concept is vital for improving the design and efficiency of electronic devices, from capacitors to antennas. As technology continues to advance, the exploration of materials with optimal complex dielectric permittivity will undoubtedly play a significant role in the development of next-generation electronic components and systems.

在材料科学和电气工程领域，理解材料的性质对于各种应用至关重要，尤其是在电容器、天线和其他电子设备的设计中。描述材料如何与电场相互作用的关键参数之一被称为复介电常数。这个术语涵盖了材料储存电能的能力以及在交变电场下以热量形式耗散能量的能力。复介电常数的概念可以分解为两个组成部分：实部和虚部。实部通常被称为“介电常数”，表示材料能够储存多少电场。它反映了材料在施加电场时极化的能力，这对能量储存应用至关重要。另一方面，虚部代表“损耗因子”，它说明了当材料受到交变电场作用时以热量形式损失的能量。这种损失在高频应用中可能是显著的，在这些应用中，能量效率至关重要。为了更好地理解复介电常数，我们可以考虑其对电容器性能的影响。电容器广泛用于电子电路中以储存和释放能量。介电材料的选择直接影响电容器的效率和性能。具有高实部的复介电常数的材料允许更大的能量储存，而低虚部则确保能量损失最小。因此，工程师必须仔细选择优化复介电常数两个组成部分的材料，以提高电子设备的整体性能。此外，测量复介电常数对于表征材料至关重要。时间域光谱和频率域光谱等技术使研究人员能够确定材料在广泛频率范围内的介电特性。通过分析从这些测量中获得的数据，科学家可以深入了解材料的分子结构和动态，这可能导致新材料的开发，其具有定制的介电特性。总之，复介电常数是研究材料及其与电场相互作用的基本概念。它的两个组成部分，实部和虚部，提供了关于材料储存和耗散能量能力的宝贵信息。理解这一概念对于改善电子设备的设计和效率至关重要，从电容器到天线。随着技术的不断进步，探索具有最佳复介电常数的材料无疑将在下一代电子元件和系统的发展中发挥重要作用。