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AD5933 evaluation board Impedance calculation

Question asked by CroiziRenato on Mar 16, 2017
Latest reply on Mar 16, 2017 by Snorlax

I use the AD5933 evaluation board to measure impedance values of a microfluidic device filled with electrolyte with a frequency sweep. I am using gold plated pins as electrodes for Vin and Vout. I was expecting to see a capacitance given by the polarizable electrodes but the signal is almost complete resistive (the phase changes only by 7-8 degrees across 5-100 KHz sweep). Is this because of the AD5933 components?

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