Experimental study on the propagation of electromagnetic waves and the spatial distribution of electric potential

A scaling model experiment on the propagation of electromagnetic (EM) waves , which satisfies the attenuation with distance, has been proposed theoreti cally and carried out experimentally. A model consisting of parallel plate waveguides representing the earth and ionosphere, ocean and conductive lave r in the crust is constructed using a solution of NaCl as the model crust a nd aluminum foils as the ocean both with resistivities. rho, which are 10(- 6) times lower than those of the real ones. The frequency of the EM waves, f was 10(6) times higher than the real value so that the wavelength and the skin depth, d = root2 pif/rho were scaled down to 10(-6) in concordance wi th the scaling factor. A method using the electrolytic tank was used to det ermine the distribution of DC potential, The profiles of the EM waves and t he DC potential were influenced by the presence of the ocean and faults of the Tokai area. taken as an example. A scaling-up experiment was suggested for the mezoscopic and nanosized optical and EM devices.