I've been using an AD5933 Evaluation board and recently started running some experiments for observing changes in impedance and phase over the time. I used an AD5933 Eval board program (rev B) since it looked improved and can acquire data over the time by setting time and the number of cycles. However, I found that phase data as a function of time show the same values even though impedance data seemed to follow a trend shown in a graph. And I run another experiment making random data and saved it as cvs file. Please see the attched and let me know if there is anthing to solve this issue. Thank you.