dielectric loss tangent

简明释义

介质损耗因数角

英英释义

例句

1.The engineer calculated the dielectric loss tangent to assess the efficiency of the capacitor.

工程师计算了介电损耗正切以评估电容器的效率。

2.The dielectric loss tangent of the insulating material was measured to ensure it meets industry standards.

绝缘材料的介电损耗正切被测量以确保其符合行业标准。

3.In RF circuit design, understanding the dielectric loss tangent helps in minimizing signal loss.

在射频电路设计中，了解介电损耗正切有助于最小化信号损失。

4.Materials with a high dielectric loss tangent are often unsuitable for microwave applications.

具有高介电损耗正切的材料通常不适合微波应用。

5.A low dielectric loss tangent is crucial for high-frequency applications.

低介电损耗正切对于高频应用至关重要。

作文

The concept of dielectric loss tangent is fundamental in the field of electrical engineering and materials science. It is a measure of how much energy from an alternating electric field is lost as heat in a dielectric material. In simpler terms, when an electric field is applied to a dielectric material, some energy is absorbed and converted into thermal energy, leading to losses. The dielectric loss tangent quantifies this loss and provides insight into the efficiency of the material for various applications.Understanding dielectric loss tangent is crucial for engineers and scientists who work with capacitors, insulators, and other electronic components. When designing these devices, it is important to select materials that have low dielectric losses to ensure that they operate efficiently. High dielectric loss can lead to overheating, reduced performance, and even failure of electronic components. Therefore, the dielectric loss tangent serves as a critical parameter in material selection.The dielectric loss tangent is defined mathematically as the ratio of the imaginary part of the complex permittivity to the real part. This ratio gives a dimensionless number that indicates how much energy is lost compared to the energy stored in the dielectric material. A lower value of the dielectric loss tangent indicates better performance, as it suggests that less energy is being dissipated as heat.In practical applications, the dielectric loss tangent can vary significantly depending on temperature, frequency of the applied electric field, and the specific material properties. For instance, certain materials may exhibit low dielectric loss tangent at lower frequencies but may show increased losses at higher frequencies. This frequency dependence is particularly important in high-frequency applications such as radio frequency (RF) circuits and microwave devices.Moreover, understanding the dielectric loss tangent can also aid in predicting the behavior of materials under different environmental conditions. For example, moisture absorption in dielectric materials can increase the dielectric loss tangent, leading to higher energy losses and potential device failure. Therefore, engineers must consider the operating environment when selecting materials and designing systems that utilize dielectrics.In summary, the dielectric loss tangent is a vital parameter that provides insight into the efficiency of dielectric materials in electrical applications. It helps engineers and scientists make informed decisions about material selection and design to minimize energy losses and optimize performance. As technology continues to advance, understanding and managing the dielectric loss tangent will remain essential in the development of more efficient electronic devices and systems.

‘介电损耗正切’的概念在电气工程和材料科学领域中是基础性的。它是一个测量交变电场在介电材料中转化为热能的能量损失程度的指标。简单来说，当电场施加于介电材料时，一部分能量被吸收并转化为热能，导致能量损失。‘介电损耗正切’量化了这种损失，并提供了对材料在各种应用中效率的洞察。理解‘介电损耗正切’对于从事电容器、绝缘体和其他电子元件工作的工程师和科学家至关重要。在设计这些设备时，选择具有低介电损耗的材料以确保其高效运行是十分重要的。高介电损耗可能导致过热、性能下降，甚至电子元件的故障。因此，‘介电损耗正切’作为材料选择中的关键参数发挥着重要作用。‘介电损耗正切’在数学上定义为复介电常数的虚部与实部的比率。这个比率给出了一个无量纲的数字，表明与存储在介电材料中的能量相比，损失了多少能量。较低的‘介电损耗正切’值表示更好的性能，因为这表明作为热量散失的能量较少。在实际应用中，‘介电损耗正切’可能会因温度、施加电场的频率和特定的材料特性而显著变化。例如，某些材料在较低频率下可能表现出低的‘介电损耗正切’，但在较高频率下可能会显示出增加的损失。这种频率依赖性在射频（RF）电路和微波设备等高频应用中尤其重要。此外，理解‘介电损耗正切’还可以帮助预测材料在不同环境条件下的行为。例如，介电材料中的水分吸收可能会增加‘介电损耗正切’，导致更高的能量损失和潜在的设备故障。因此，工程师在选择材料和设计利用介电材料的系统时，必须考虑操作环境。总之，‘介电损耗正切’是一个重要的参数，它提供了对介电材料在电气应用中效率的洞察。它帮助工程师和科学家在材料选择和设计方面做出明智的决策，以最小化能量损失并优化性能。随着技术的不断进步，理解和管理‘介电损耗正切’将在开发更高效的电子设备和系统中继续发挥重要作用。