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Hi,

I have used the AD5933 a couple of times. In my opinion it's implemented is quite straightforward. If it comes to the calibration, I include an analoge switch with a comparable low Ron resistance an capacitance (check ADI's website) to realize a selectable on-board calibration impedance. In combination with an MCU, the calibration and the change of the switch can be realized quite simple. The application note of the AD5933 explains how to implement the calculation quite good.

If you are not that experienced with writing code and making a circuit design, you could use a breakout board hosting the analog switch and the calibration impedance and control its state by an Arduino. If I remember correctly, the GUI provided by ADI to read out the evaluation board is quite user friendly (~10 years ago).

There are even quite some scientific papers available explain the usage and implementation.

BR