I am working on impedance based measurements,Here i am using AD5933 for impedance and phase measurement.
I am confused with some problems, I refereed the application notes and it was very useful,still i am stuck in phase measurement.
I am getting impedance perfectly but phase is not at all in hand.
Actually for capacitors we should phase shift of 90deg. but I am getting some -54deg.
As per the datasheet we should subtract the system phase from calculated DUT phase.
My experiment setup is Frequency=30kHz,DUT is capacitor=33pf.
The REAL and IMAGINARY value is as follows,
I have attached the calculated data please have a look and help me!!!!!!