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Time-Domain Measurements Express VIs

Owning Palette: S&V Express Measurements Express VIs

Installed With: Sound and Vibration Measurement Suite. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.

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.

The VIs on this palette can return ranges of LabVIEW error codes or specific sound and vibration error codes.

Palette ObjectDescription
Amplitude and LevelsMeasures DC, RMS, positive and negative peak, and peak-to-peak values of a signal.
HistogramCalculates 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.
Sound LevelPerforms sound level measurements, including linear, exponential, and peak hold averaging for a single channel or N channels. You also can apply A-, B-, or C-weighting to the time-domain signals.
StatisticsPerforms 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.
Vibration LevelPerforms several vibration level measurements for a single channel or N channels. You also can perform single or double integration on the time-domain signal. You can compute the velocity or the displacement from an acceleration measurement.

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