mtnkh
Newbie level 6
Hi,
I have a system which its impedance, z = |z|∠θ, is variable and unknown and I want to estimate the impedance in this case I inject a sine current with a known amplitude and frequency to the system, I = sine(2*pi*f*t) and measured the output voltage.
So in this case we will have this equation:
Vout = I*|z|∠θ
I used a DAQ to sample the data and process it in PC. I wanted to know how can I measure the phase shift between "Vout" and "I" which is equal to the phase of the impedance using matlab?
I have a system which its impedance, z = |z|∠θ, is variable and unknown and I want to estimate the impedance in this case I inject a sine current with a known amplitude and frequency to the system, I = sine(2*pi*f*t) and measured the output voltage.
So in this case we will have this equation:
Vout = I*|z|∠θ
I used a DAQ to sample the data and process it in PC. I wanted to know how can I measure the phase shift between "Vout" and "I" which is equal to the phase of the impedance using matlab?