Frequency-Domain Measurements Express VIs
Owning Palette: Analysis Express VIs
Use the Frequency-Domain Measurements Express VIs to perform signal analysis that require the data to be converted into frequency domain. The Frequency-Domain Measurements VIs perform frequency domain transformations and frequency domain analysis.
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 |
|---|---|
| Distortion | Performs harmonic distortion analysis and/or SINAD measurement on the input signal. |
| Frequency Response | Computes the frequency response and the coherence based on the stimulus and response input signals and returns the results as magnitude, phase, and coherence. |
| Power Spectrum | Computes the averaged magnitude spectrum, power spectrum, or power spectral density for a single or multiple channels. This step can return the spectra in root-mean-square, peak, and peak-to-peak units. |
| Tone Extraction | Finds the single tone with the highest amplitude or searches a frequency range you specify to find the single tone with the highest amplitude and returns the frequency, amplitude, and absolute phase for the detected tone. The step also can export Export signals to the Project View. |