Phase Angle and Modulus Corrected for Ohmic Resistance

2 Phase Angle and Modulus Corrected for Ohmic Resistance 

If an accurate estimate for electrolyte resistance Re st is available, a modified Bode representation is possible, following the development in Section 16.1.3, as 

The slope of the corrected modulus yields valuable information concerning the existence of CPE behavior that is obscured in the traditional Bode presentation. At high frequencies, the corrected modulus is dominated by the contribution of the imaginary part of the impedance. The corrected modulus approaches zero according to Z adj thus, the slope on a log-log plot has a value of —a at high frequencies. 

The corrected phase angle plots yield valuable information concerning the existence of CPE behavior that is obscured in the traditional Bode presentation. 

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