抄録
In order to confirm, whether or not experimental results agree with many empirical and theoretical formulas which have been proposed for dispersed systems with two different substances, dielectric constants of mercury-vaserium mixtures varying 0_??_22.7% in volume ratio and packed glass balls are measured at 20°C by using frequency of 2 megacycles. In the case of glass balls, the size effect of dielectric constants is examined on three different sizes of the ball and the effect is not found up to 0.8 mm in diameter. These results are properly represented by Bruggeman's formula and are in line with the authors' previous report on emulsion. Treatment of the results by “liquid immersed method” is discussed and it is found that the variation of the dielectric constant of dispersed or medium substance can be affected considerably, if a suitable substance is used for mixing. Temperature variation of the dielectric constant of NH4I, for example, is investigated and the results nearly agree with the expectation.
