Hi all,
I'm using the AD5933 eval board in order to test an impedance measurement cell. I use shielded cables (30cm) to connect the cell with the board. The cell behaves like a capacitor.
I used the following settings for the measuerements:
Rfeedback: 1M
Rcal: 1M
Start frequency: 3kHz
Delta: 220Hz
511 points
Settling Time Cycles: 15
Upp Output: 1V
Gain: 1
Settling Time: X2
Multipoint Calibration
During my measurements i observed steep rises in the phase for which I had no explanation.
Because of this I installed a 10p capacitor instead of my measurement cell, but it shows a similar result:
Do you have got an explanation why the rise in the phase is that steep?
Thanks in advance!