Post Go back to editing

this graph is true?

Category: Software
Product Number: AD5941
Software Version: 2.5.2.8

Hello! I am measuring the impedance of a 21700 NCA battery using the EVAL-AD4591BATZ. I'm collecting data using Sensorpal and plotting it through Python. The graph is a sweep from 1Hz to 50000Hz. I'm not sure if the graph looks correct. If it is correct, I'm curious if the imaginary axis is corrected to negative values

.

. Also, no matter which battery I connect, the real component (Rs) is always the same at 0. I'm attaching the Python plot graph Thank you