Time-Domain Measurements Express VIs

Owning Palette: Analysis Express VIs

Use the Time-Domain Measurements Express VIs to perform time domain analysis. The Time-Domain Measurements VIs implement some operations commonly used in signal processing.

If a LabVIEW SignalExpress palette is empty or appears to be missing VIs, you are missing components that are not installed by LabVIEW SignalExpress. Reinstall the National Instruments Device Drivers DVD and include NI-DAQmx™ and Modular Instruments support.

The VIs on this palette can return general LabVIEW error codes.

Palette Object	Description
Amplitude and Levels	Measures DC, RMS, positive and negative peak, and peak-to-peak values of a signal.
Histogram	Calculates the discrete histogram of the input signal. The Histogram result runs continuously and accumulates the data from all incoming signals until you click the Reset Histogram button on the title bar of the Histogram configuration view or you change a configuration parameter. You can compute the resulting bin values as an absolute number of occurrence or as a percentage of the total number of occurrences. You also can display the accumulated bin values in a logarithmic scale. Click the Auto-config button below the Histogram graph to display standard start-up configuration options.
Statistics	Performs statistical calculations on time-domain, scalar, or array of scalar data. You can select up to six statistical measurements to perform on your data, and Statistics creates a scalar output for each specified measurement. If the input signal is a waveform, by default Statistics returns a statistical measurement on the current input signal. For scalar data, the Statistics step returns a statistical measurement that represents the entire signal history since you started the project or you reset the step.
Timing and Transition	Measures timing and transition parameters on single pulses and on rising and falling edges.