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Effect of a resonance of the frame on the surface impedance of glass wool of high density and stiffness
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1991
Year
Materials ScienceHigh DensitySurface CharacterizationGlass WoolEngineeringPhysicsMechanicsMechanical EngineeringSurface ScienceApplied PhysicsSurface ImpedanceFast VariationSurface EngineeringBiot Theoryλ/4 ResonanceGlass FiberMechanics Of MaterialsElectromagnetic Compatibility
A fast variation of the surface impedance of two layers of different thicknesses of the same material has been observed at low frequencies. These variations, which are predicted by the Biot theory, appear at the λ/4 resonance of the frame.