Results 311 to 320 of about 199,086 (341)
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Hemispherical dielectric permittivity cell
Review of Scientific Instruments, 1978A three-terminal dielectric cell based on a hemispherical design is constructed for low-temperature measurements of dielectric permittivity. The cell has a small sample volume, is geometrically stable, and shows no frequency dependence of capacitance. Measurements on test samples are presented showing both cell constant stability data and the linearity
John G. Berberian, Joseph S. Hayden
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IEEE Transactions on Microwave Theory and Techniques, 2005
An analysis including the temperature dependence of the permittivity and loss tangent of three low-cost and high-permittivity materials (zirconium-tin-titanate, alumina, and titanium-dioxide) in the terahertz frequency range is presented. Such dielectric materials find varied applications in microwave and terahertz systems and components.
Jaime Gómez Rivas +4 more
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An analysis including the temperature dependence of the permittivity and loss tangent of three low-cost and high-permittivity materials (zirconium-tin-titanate, alumina, and titanium-dioxide) in the terahertz frequency range is presented. Such dielectric materials find varied applications in microwave and terahertz systems and components.
Jaime Gómez Rivas +4 more
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Physical Chemistry Chemical Physics, 2009
The ideal relative permittivity of liquid mixtures is demonstrated to be a volume-fraction-weighted average of the pure-component relative permittivities. This generalised-thermodynamics result is used to define the molar electric dipole, permittivity, dielectric polarization and electric susceptibility of thermodynamically ideal liquid mixtures and ...
Michael I. Davis +3 more
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The ideal relative permittivity of liquid mixtures is demonstrated to be a volume-fraction-weighted average of the pure-component relative permittivities. This generalised-thermodynamics result is used to define the molar electric dipole, permittivity, dielectric polarization and electric susceptibility of thermodynamically ideal liquid mixtures and ...
Michael I. Davis +3 more
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Permittivity at infinite frequency
Russian Journal of Physical Chemistry, 2006A method independently developed by Boyer-Donzelot and Levin for determining the permittivity at infinite frequency ɛ∞ on the basis of the concept of polarizability additivity of interatomic bonds is considered. The ɛ∞ values calculated for various chemical compounds are compared.
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A bridge for the measurement of permittivity
Proceedings of the IEE - Part B: Radio and Electronic Engineering, 1956A description is given of a null method for the measurement of the complex permittivity of dielectrics. The direct admittance of a 3-terminal capacitor with the sample as dielectric is measured as a complex capacitance, the two components being indicated directly on two 3-terminal variable air capacitors.
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