Solutions

Scan & Paint

SP_Printer SP_Engine Scanandpaint SP_Carseat Click to enlarge

Sound source localization is an important topic in the field of sound & vibration, from the product development stage to the end off line control of products. Scan&Paint is a fast, easy and accurate tool to visualize stationary sound fields with an unmatched spatial resolution and full acoustic bandwith coverage (20Hz to 10kHz). The system is a superb engineering tool for troubleshooting or benchmarking all kinds of objects on the spot. No requirement for anechoic condition or chamber. In practice, there are many cases where anechoic conditions are not applicable, for instance in an industrial manfacturing environment or a car interior. PU probes allow direct measurementents of particle velocity, which are not highly affected by background noise or reflections. Sound intensity measurements can be taken in situations with a high sound pressure to sound intensity ratio. A reference sensor can be added to preserve the relative phase for the measured particle velocity distribution. This feature enables to plot and study the dynamic behavior of samples. From system setup through data processing until results analysis, it only takes a few minutes to complete and entire measurement campaign.

The Scan & Paint method is very simple; the surface is scanned with one PU probe while a camera is positioned toward the surface to film the scanning. The recorded video and audio data are automatically synchronized by the software. The measurement are directly ready for further processing. In the post-processing, for each frame of the video the position of the probe is extracted. The auto-tracking function in the software enables to automatically recognize the probe and its position by a colour marking.

An additional submodule for In-situ Transmission Loss is available. Read more about this option here.

Optionally the Advanced Tracking can be used where reflective markers and led lights are used for tracking. At each measurement point the particle velocity, sound intensity and sound pressure are calculated from the relative time block of the audio data. A high resolution sound color map is produced as a result.

 

  • Frequency range 20Hz - 10kHz
  • Fast method; short measurement and processing time
  • Low suscepebility to background noise and reflections
  • No need for anechoic room or anechoic conditions
  • Automatic synchronization of the measurements with the captured video data
  • High resolution mapping of:
    • Sound pressure
    • Particle velocity
    • Sound intensity
    • Absorption ( applicable in combination with the in-situ absorption setup )
  • Sound Power calculation
  • Frequency filtered playback of audio
  • Single sensor solution
  • Large machinery
  • Acoustic enclosures
  • Automotive
    • Powertrain
    • Vehicle Interior
  • Electronic consumer goods
    • Washing mashine
    • Dishwasher
  • Medical equipment

 

 

 

     

PhD Thesis by Daniel Fernandez Comesana | SCAN-BASED SOUND VISUALISATION METHODS USING SOUND PRESSURE AND PARTICLE VELOCITY


Publications

 

 

   

Noise Reduction on a Superbike

>>Click to read full article



   

Large Gas Compressor Noise Assesment

>>Click to read full article




   

Gearbox Noise Assesment

>>Click to read full article





 



     


   
       

 

   

Scan & Paint Software

>>Click to read more


   

Advanced Tracking

>>Click to read more



   

Remote Handle

>>Click to read more



   

PU regular

>>Click to read more



   

PU mini 

>>Click to read more



   

PU match

>>Click to read more



    Scout 422

>>Click to read more