jherfson / impedance

Sum of square errors between the experimental curve and the model curve

Resistor

Capacitor

O módulo da Impedância

$$ |Z|=\sqrt{(Z')²+(Z'')²} $$

Circuito RC paralelo

$$ Z = \frac{R}{1+\omega²\tau²} - i\frac{\omega\tau R}{1+\omega²\tau²} $$

$$ \tau = rC $$

Soma de erros Quadrados entre a curva experimental e a do modelo.

$$ s = \sum_{i}\omega'i[(Z'i){exp} - (Z'i){model}]²+\sum{i}\omega''_i[(Z''i){exp} - (Z''i){model}]² $$

peso

$$ \omega'=\omega''=\frac{1}{|Z|} $$