Figure 9.

Equivalent circuit modeling of ${\dot{Z}}_{\mathrm{A}}$: (a) Cole–Cole plot for $C_{\mathrm{X}}=$ 0.10 nF and $R_{\mathrm{X}}=$ 0 Ω; (b) equivalent circuit with a stray resistance $R_{\mathrm{AS}}$ and stray inductance $L_{\mathrm{A}}$. The symbol $n$ represents the harmonic number of ${\dot{Z}}_{\mathrm{A}}\left(n{f}_0\right)$. We used pyZwx software to fit the DFT data to the equivalent circuit model [59].