Manufacturing industries

Scan & Listen

ScanListen ScanListen2 Click to enlarge

Human ears only hear sound pressure, with Scan & Listen particle velocity is now also made audible!

Human ears are like traditional microphones sensitive to scalar value (omnidirectional  sound pressure), the Microflown however is sensitive for vector value (directional acoustic particle velocity). A combination of a Microflown with the Scan & Listen device are making our ears capable of hearing particle velocity! Listen to what nobody heard before. Listen to noise source in situations with background noise and reflections. Locating sound sources in  practical environments can be difficult. Especially in situations with non-stationary sources like squeak  & rattle. Just listening to particle velocity can give you better results than extensive, detailed FFT analysis! Scan & Listen  method performs quick scans instead of time consuming series of measurements. It is an  intuitive method of sound source localization. Also acoustic leakages can be detected fast and accurately with the system. Quick, fast and mobile are keywords for Scan & Listen, as well as it is practical, simple and handheld. The system also has the option to record simultaneously while listening. Scan & Listen set- up contains a background noise reducing headphone (passive -40dB ), so the signal of particle velocity is even clearer in your ears.

Features

  • Direct listening to particle velocity
  • Low susceptebility to background noise and reflections
  • Easy finding of sources; also non stationary transients such as "squeak & rattle"
  • Easy finding of modes / vibration pattern determination
  • Easy and quick in use
  • Portable

Datasheet

Leaflet

Publications