Velo Software

Acoustic Shape

The Acoustic Shape has joined the Velo platform, moving your array applications from 2D to 3D. As with Scan&Paint 3D the fundament of your measurement campaign is a 3D model. Enabling an intuitive workflow to combine multiple measurements, even from different perspectives, into one project. With Acoustic Shape arriving, we can for non-stationary situations, when arrays have to be applied to localize transients or see changes over time and rpm, serve this need.  The Acoustic Shape base will create a strong fundament too many applications and processing methods to be added and offered in the future. 

The system requires a 3D model of the object to be analyzed and allows positioning and orientation of the sensors around its structure. This can be done by means of single sensor positioning or default array configuration l. This last feature allows loading a predefined array structure, very useful for repetitive test situations. The setup offers real time process control and noise visualization together with a broad range of analysis  possibilities:

Base Module (SW-AS)

  • Power spectrum:  Combines multiple captures into a 3D colormap based on power spectral calculations. This method provides a sound map adjustable along the whole usable frequency range.
  • Power spectrum movie: Provides a video output of a single capture of the evolution in time of the frequency components.

Enabled with sub-module Order Tracking (SW-AS-RPM)

  • Order spectrum: Combines multiple captures into a 3D colormap based on order analysis. This method provides a sound map adjustable along the order range of interest.
  • Order spectrogram over time: : Provides a video output of a single capture representing the evolution in time of the order components
  • Order spectrogram over RPM:  Provides a video output of a single capture representing the evolution in RPM of the order components.

Depending on the analysis method used one or more captures can be combined to 1) cover a large area with a sufficient spatial resolution 2) average several measurements for a better phenomenon analysis. Obtaining in both cases the visualization of the distribution of:

  • Particle Velocity
  • Sound Pressure
  • Sound Intensity
  • Sound Power

All these combined with the power of the 3D data representation and the synchronization (in time and RPM) of several captures at once creates a very powerful tool for noise location and mapping in very complex structures. From very large surfaces with a good spatial resolution, a complex interior- exterior noise radiation, sound power calculation of a total structure, etc.

 

 



   

 

Features

  • Multiple and single capture processing
  • FFT
  • RPM - Tacho input
  • Order tracking
  • Overall vs Orders
  • Linear, Irregular and scatterd arrays
  • 3D data representation
  • Sound pressure dB & dBA
  • Particle velocity
  • Sound intensity
    • Active
    • Reactive
    • Possitve
    • Negative
  • Narrow Band
  • Octave
  • 1/3 Octave
  • 1/12 Octave
  • Extraction of the colormap tools
  • Frequency filtered playback of audio
  • Frequency and Time domain
  • Auto range
  • Import of Universal files (.unv)
  • Export to Time Files, MS Excel  & TXT
  • Export video to avi
  • Report function