absolute dielectric constant

简明释义

绝对介电常数

英英释义

例句

1.When designing capacitors, engineers must consider the absolute dielectric constant of the materials used to ensure optimal performance.

在设计电容器时，工程师必须考虑所用材料的绝对介电常数以确保最佳性能。

2.The absolute dielectric constant of water is significantly higher than that of air, making it an excellent insulator in many applications.

水的绝对介电常数明显高于空气，使其在许多应用中成为优良的绝缘体。

3.Different materials have varying absolute dielectric constants, which affect their ability to store electrical energy.

不同材料具有不同的绝对介电常数，这影响它们存储电能的能力。

4.In high-frequency circuits, the absolute dielectric constant can impact signal integrity and must be carefully selected.

在高频电路中，绝对介电常数会影响信号完整性，必须仔细选择。

5.The absolute dielectric constant of a vacuum is defined as 1, which means it does not permit any electric field to exist within it.

真空的绝对介电常数定义为1，这意味着它不允许任何电场存在于其中。

作文

The concept of the absolute dielectric constant is fundamental in the field of physics and electrical engineering. It represents a material's ability to store electrical energy in an electric field. Understanding this property is crucial for designing capacitors, insulators, and other electronic components. The absolute dielectric constant, often denoted by the symbol 'ε', is a dimensionless quantity that compares the capacitance of a capacitor with a dielectric material to the capacitance of the same capacitor in a vacuum. This comparison allows engineers and scientists to predict how materials will behave in various electrical applications.In essence, the absolute dielectric constant signifies how much electric field can be reduced inside a material as compared to a vacuum. For example, a material with a high absolute dielectric constant can significantly reduce the electric field within it, allowing for more efficient energy storage. This property is particularly important in applications such as capacitors, where the goal is to maximize the stored energy while minimizing the size of the component.Different materials exhibit different absolute dielectric constants. For instance, air has a absolute dielectric constant close to 1, while water has a much higher value, around 80. This means that water can store much more electric energy than air under the same conditions. Additionally, materials like ceramics and plastics are often used in electronic devices because of their favorable absolute dielectric constant values, which help in reducing energy loss and improving efficiency.To further understand the significance of the absolute dielectric constant, let’s consider its role in capacitance. The capacitance 'C' of a capacitor is directly proportional to the absolute dielectric constant of the material between its plates. This relationship can be expressed with the formula: C = ε * A / d, where 'A' is the area of the plates and 'd' is the distance between them. As we can see, increasing the absolute dielectric constant increases the capacitance, which is desirable in many electronic applications.Moreover, the absolute dielectric constant also influences the speed of signal transmission in communication systems. Materials with a lower absolute dielectric constant allow signals to travel faster, which is crucial for high-speed data transmission. Therefore, selecting materials with appropriate absolute dielectric constants is essential for optimizing performance in various technologies, from smartphones to satellite communications.In conclusion, the absolute dielectric constant is a key parameter that affects the performance of electrical and electronic components. Its importance cannot be overstated, as it influences energy storage, signal transmission, and overall device efficiency. As technology continues to advance, the understanding and application of the absolute dielectric constant will remain vital in developing new materials and improving existing technologies. Engineers and scientists must continue to explore the properties of different materials to harness their potential fully, ensuring that future innovations meet the growing demands of our increasingly electronic world.

绝对介电常数的概念在物理学和电气工程领域中至关重要。它代表了材料在电场中储存电能的能力。理解这一特性对于设计电容器、绝缘体和其他电子元件至关重要。绝对介电常数通常用符号“ε”表示，是一个无量纲量，它将带有介电材料的电容器的电容与在真空中相同电容器的电容进行比较。这种比较使工程师和科学家能够预测材料在各种电气应用中的表现。从本质上讲，绝对介电常数表示在材料内部电场可以降低的程度，与真空相比。例如，具有高绝对介电常数的材料可以显著降低其内部的电场，从而实现更高效的能量存储。这一特性在电容器等应用中特别重要，目标是最大化存储的能量，同时最小化组件的大小。不同的材料表现出不同的绝对介电常数。例如，空气的绝对介电常数接近1，而水的值则高得多，大约为80。这意味着在相同条件下，水能够储存比空气多得多的电能。此外，陶瓷和塑料等材料常用于电子设备，因为它们具有良好的绝对介电常数值，有助于减少能量损失并提高效率。为了进一步理解绝对介电常数的重要性，让我们考虑它在电容中的作用。电容器的电容“C”与其板间的介质材料的绝对介电常数成正比。这一关系可以用公式表示：C = ε * A / d，其中“A”是板的面积，“d”是它们之间的距离。如我们所见，增加绝对介电常数会增加电容，这在许多电子应用中是可取的。此外，绝对介电常数还影响通信系统中信号传输的速度。具有较低绝对介电常数的材料允许信号以更快的速度传播，这对高速数据传输至关重要。因此，选择具有适当绝对介电常数的材料对于优化各种技术的性能至关重要，从智能手机到卫星通信。总之，绝对介电常数是影响电气和电子元件性能的关键参数。它的重要性不容忽视，因为它影响能量储存、信号传输和整体设备效率。随着技术的不断进步，理解和应用绝对介电常数在开发新材料和改进现有技术方面将始终至关重要。工程师和科学家必须继续探索不同材料的特性，以充分利用它们的潜力，确保未来的创新满足我们日益电子化世界的需求。