relative permittivity和dielectric constant在本质上都是描述材料电学性能的参数，但在应用和计算上存在一定差异。详细解释：1. 定义与性质 relative permittivity，即相对介电常数，是描述电介质材料对电场响应能力的物理量。它是电介质材料极化程度的一种量度。介电常数则是用来表示绝缘材料电容特性的一个参数...
relative permittivity是相对介电常数εr dielectric constant是真空的介电常数ε0，也可以写成vacuum permittivity 物质的介电常数permittivity，也就是εs=εr·ε0
The dielectric constant, also known as the relative permittivity, is a dimensionless constant that describes how a material behaves in an electric field compared to vacuum. It reflects the material's response to an electric field and is related to its polarity. ...
The dielectric constant varies with frequency and generally decreases as frequency increases; some materials have less of a change in relative permittivity than others. Substrates suitable for high-frequency applications are those whose dielectric constant remains relatively the same over a wide frequency ...
Relative permittivity is the ratio of "the permittivity of a substance to the permittivity of space or vacuum ". Relative permittivity can be expressed as εr = ε / ε0 (1) where εr = relative permittivity - or dielectric constant ε = permittivity of substance (C2/(N m2)) ...
相对介电常数/介电常数
The dielectric constant or relative static permittivity of a material represents the capacitance of the material relative to a vacuum and is important in many industrial applications. Nevertheless, accurate experimental values are often unavailable and current prediction methods lack accuracy and are often...
The dielectric constant (also calledrelative permittivity) is a dimensionless number that indicates how much a material increases the capacitance of a capacitor compared to a vacuum. Vacuum has a dielectric constant of 1, which means it does not affect the capacitance at all. Air has a dielectric...
dielectric constant (redirected fromdielectric constants) Encyclopedia Related to dielectric constants:Dielectric materials dielectric constant n. The ratio of the permittivity of a material to that of a perfect vacuum. Also calledrelative permittivity. ...
The dielectric constant or relative permittivity 𝜀𝑟εr or K of a continuous medium is a macroscopic property of a dielectric medium related to the electrical permittivity of the medium. The relative permittivity of an insulator [26] is the ratio between the capacitance Cx of a capacitor in...