Deck 3: Data Validation

Question 1

KKT equations relate

A) real and imaginary part of impedance
B) magnitude and phase of impedance
C) real part of impedance and admittance
D) none of the above

Answer 1

A,B

Question 2

The challenges in applying KKT by integration is

A) limited frequency range of data
B) wide spacing in frequency
C) both of the above
D) none of the above

Answer 2

C

Question 3

If the real part of an impedance spectrum has negative values, they can be converted to positive values by

A) adding a large enough resistor in series
B) adding a large enough capacitor in parallel
C) adding a small enough capacitor in series
D) adding a small enough resistance in parallel

Answer 3

D

Question 4

Linear KKT software employs

A) KKT by integration
B) linearization of KKT equation
C) measurement model approach
D) KKT with extrapolation

Question 5

When stability criterion is violated, difference between original and KK transformed data appear mainly in __________________ frequencies (one word)

Question 6

Data from linear, causal, and stable system will always be KKT compliant.

Question 7

Impedance spectrum from a circuit consisting of passive elements

A) is KKT compliant only if the perturbation is small
B) is KKT compliant only if multi-sine is applied
C) is always KKT compliant
D) is never KKT complaint.

Question 8

If a potential instability is present, then the effect manifests mainly in

A) high frequencies
B) low frequencies
C) both of the above
D) none of the above

Question 9

Linear KKT converts the KKT integrals into a linear form.

Question 10

In the measurement model approach, a circuit of the following type can be used

A) Ladder
B) Voigt
C) Warburg
D) all of the above

Question 11

A given EIS data was validated using the measurement model approach. It shows large systematic residuals. This could be because

A) data is from a system which is not KKT compliant
B) model fitting is not done properly
C) either of the above
D) none of the above

Question 12

When data contains negative values for real part of impedance, KKT must be performed on ______________ form of data (one word).