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Transient analysis is the analysis of nonstationary signals. This book discusses how to perform transient analysis with the Transient Analysis VIs. The Transient Analysis VIs provide two different techniques for extracting information about transient signals. Use the Short-Time Fourier Transform (STFT) for signals in which the frequency content changes relatively slowly with time. Use the shock response spectrum (SRS) for shock signals.

You can use the SVT STFT vs Time VI to extract frequency information as a function of time directly from the signal of interest. You also can use the Spectral Map Express VI to extract frequency information as a function of time or rotational speed. You typically display the STFT results on a Waterfall Graph, on an SV Intensity Graph, or on a Colormap.

You can use the SVT Shock Response Spectrum VI to evaluate the severity of a shock signal. You typically display the SRS results on an XY graph.