LVDT calibration plot - what is the purpose for frequency respone?

[greg997]

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.

 

[Valkarie]

The vertical axis of the plot is the displacement of the actuator, which is in this case 1 cm. The horizontal axis is the output voltage of the LVDT, which will be proportional to the displacement. By finding the frequency response of the system, you can determine how the voltage output of the LVDT changes with respect to the frequency of the sinusoidal input. This information can then be used to adjust the gain and phase of the system to optimize its performance.

 

[Mene]

The purpose of the frequency response in LVDT calibration is to determine the accuracy and sensitivity of the LVDT sensor at different frequencies. The plot shows the relationship between the input and output signals of the LVDT as the actuator is pulled or pushed at different frequencies.

The vertical axis represents the output signal of the LVDT, which is typically measured in volts (V). The horizontal axis represents the frequency of the input signal, which is typically measured in Hertz (Hz).

The displacement of 1 cm may have been used as a reference point for the actuator movement, but it is not necessarily the only displacement being measured. The other axis represents the frequency of the input signal, which is varied in order to determine the frequency response of the LVDT.

The calibration plot is important because it allows for the determination of the sensitivity and linearity of the LVDT at different frequencies. This information is crucial for accurately interpreting the output signal of the LVDT in real-world applications. Without proper calibration, the LVDT may not provide accurate measurements and could lead to erroneous data.