we're using the AD5933 for bioelectrical electrode impedance measurements. Usually, the electrodes have to be immersed in a saline solution for measuring, and a 2 point measurement (Electrode to Reference electrode) adds unwanted potential offsets to the measurement. For a more accurate measurement, a technique using 3 electrodes is employed:
(Fig. 4 from this link)
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Is there any way to connect the AD5933 in such an arrangement to measure impedance? Do you have any additional suggestions for performing such a measurement?
Thanks and Kindest Regards,
One for the magnitude is already wonderful, though we need both of them. Is the mag/phase distorted in some of your ideas? If possible, tell me one that respects both values.