I am given the plot done during the calibration of LVDT by pulling and pushing the actautor. The actuator was pulled by 1 cm every few second to full extent and then back ( or it was pushed and then pulled, does it matter?). What are the meanings of values of the vertical and horizontal axis? Is one of the the displacement of 1 cm? What is the other? The goal is to find the frequency response having the sinewaves of the input and output. But what do I need the calibration plot for? The plot is attached here. Thanks anyone for help.