About the frf frequency plot type, How to set up an x/y plot – MTS Series 793 User Manual
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About the FRF Frequency Plot Type
Unlike the ASD, Amplitude, and Coherence frequency plot types, selecting the FRF (Frequency Response
Function) type causes two plots to appear on the scope window.
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The top plot displays the ratio of amplitude between output (|->) and input (->|) as a function of frequency.
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The bottom plot displays the phase difference between output (|->) and input (->|) as a function of frequency.
How to Set Up an X/Y Plot
An X/Y plot displays the first signal on the vertical axis and the second signal on the horizontal axis. A typical
use for an X/Y plot is to display hysteresis by plotting a force signal against a displacement signal.
1. In the Station Manager window’s toolbar, click the Scope icon.
2. In the Scope window:
406 MTS Series 793 Control Software
Scopes and Meters