Fig. 3

The original dielectric spectrum of mixed solution with different water volume ratio and the dielectric spectrum of SSA after noise removal. (a) Comparison of the noise removal effect of mixed dielectric spectra with 80% water content by volume. (b) Comparison of the noise removal effect of mixed dielectric spectra with 60% water content by volume. (c) Comparison of the noise removal effect of mixed dielectric spectra with 40% water content by volume. (d) Comparison of the noise removal effect of mixed dielectric spectra with 20% water content by volume.