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Owning Palette: Frequency Analysis VIs

Use the Zoom FFT VIs to perform zoom FFT measurements.

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

Palette Object	Description
SVFA Zoom Coherent Output Power	Computes the zoom coherent output power based on scaled signal X [EUx], scaled signal Y [EUy], and zoom settings.
SVFA Zoom Cross Spectrum (Mag-Phase)	Computes the zoom cross power spectrum based on scaled signal X [EUx], scaled signal Y [EUy], and zoom settings. Results are returned in magnitude [dB EUx EUy] and phase [degrees].
SVFA Zoom Cross Spectrum (Real-Im)	Computes the zoom cross power spectrum based on scaled signal X [EUx], scaled signal Y [EUy], and zoom settings. Results are returned as real part [EUx EUy rms] and imaginary part [EUx EUy rms].
SVFA Zoom FFT Spectrum (Mag-Phase)	Computes the zoom FFT spectrum based on scaled signal [EU] and zoom settings. Zoom FFT results are returned in magnitude [dB EU] and phase [degrees]. Data is accumulated each time this VI is called. However, it returns a new spectrum only when sufficient data has been accumulated. Indicators and subsequent processing should only be called when new spectrum available is TRUE. You can use this polymorphic VI to analyze signals from a single channel or from N channels. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVFA Zoom FFT Spectrum (Real-Im)	Computes the zoom FFT spectrum based on scaled signal [EU] and zoom settings. Zoom FFT results are returned as real part [EU rms] and imaginary part [EU rms]. Data is accumulated each time this VI is called. However, it returns a new spectrum only when sufficient data has been accumulated. Indicators and subsequent processing should only be called when new spectrum available is TRUE. You can use this polymorphic VI to analyze signals from a single channel or from N channels. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use
SVFA Zoom Frequency Response (Mag-Phase)	Computes the zoom frequency response and the coherence based on stimulus signal X [EUx], response signal Y [EUy], and zoom settings. Results are returned in coherence, magnitude [dB EUy/EUx], and phase [degrees].
SVFA Zoom Frequency Response (Real-Im)	Computes the zoom frequency response and the coherence based on stimulus signal X [EUx], response signal Y [EUy], and zoom settings. Results are returned in coherence, real part [EUy/EUx rms], and imaginary part [EUy/EUx rms].
SVFA Zoom Power Spectral Density	Computes the zoom power spectral density based on scaled signal [EU] and zoom settings. Data is accumulated each time this VI is called. However, it returns a new spectrum only when sufficient data has been accumulated. Indicators and subsequent processing should only be called when new spectrum available is TRUE. You can use this polymorphic VI to analyze signals from a single channel or from N channels. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.
SVFA Zoom Power Spectrum	Computes the zoom power spectrum based on scaled signal [EU] and zoom settings. Data is accumulated each time this VI is called. However, it returns a new spectrum only when sufficient data has been accumulated. Indicators and subsequent processing should only be called when new spectrum available is TRUE. You can use this polymorphic VI to analyze signals from a single channel or from N channels. The data type you wire to the scaled signal [EU] input determines the polymorphic instance to use.