Frequency Analysis VIs
- 업데이트 날짜:2024-06-18
- 1분 (읽기 시간)
Frequency Analysis VIs
Owning Palette: Sound and Vibration VIs
Use the Frequency Analysis VIs to perform averaged and non-averaged, or single block, frequency analysis. The analysis is based on the FFT.
The VIs on this palette can return general LabVIEW error codes or specific sound and vibration error codes.
Refer to the labview\examples\Sound and Vibration directory for examples of using the Frequency Analysis VIs.
| Palette Object | Description |
|---|---|
| Frequency Response | Compares a stimulus signal and a response signal and computes the frequency response function using a fast Fourier transform (FFT). Frequency Response can return magnitude, phase, real and imaginary result signals, and coherence. |
| Limit Test | Tests an input signal or value against user-specified limits and returns information on whether the test passed or failed and, in the case of a failure, where it failed. Limit Test accepts time-domain signals, frequency-domain signals, and scalar values as inputs. You can specify either signals or scalar values for the limits, and you can define the limits or use other signals in the project as the limits. |
| Power Spectrum | Computes the averaged magnitude spectrum, power spectrum, or power spectral density for a single or multiple channels. Power Spectrum can return the spectra in root-mean-square, peak, and peak-to-peak units. |
| Subpalette | Description |
|---|---|
| Baseband FFT VIs | Use the Baseband FFT VIs to perform baseband FFT measurements. |
| Spectrum Extended Measurements VIs | Use the Spectrum Extended Measurements VIs to perform advanced frequency analysis measurements. |
| Zoom FFT VIs | Use the Zoom FFT VIs to perform real-time zoom FFT measurements. |