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Reduce the pressure, go for particle velocity

Education & Research

With the invention of the Microflown sensor, acoustic particle velocity has become a directly measurable quantity. Since then, many new applications have been developed exploiting its broadband directionality and acoustic near-field response. Together with a regular sound pressure sensor, the entire acoustic vector can now be thoroughly characterized. As a result, sound probes comprising both sound pressure and particle velocity sensors can be used for a variety of applications. Over the last 20 years, hundreds of scientific publications have demonstrated many possible uses of the technology. However, there is still a large amount of ongoing research where the use of particle velocity measurements can yield novel key solutions.


  • Audiology measurements
  • Array signal processing
  • Bio-medical and biological research
  • Duct acoustics
  • High order directional sensors
  • Material testing
  • Nonlinear acoustics
  • Transducer calibration
  • Validation of numerical simulations
  • Vehicle acoustics
  • Wind turbine noise
Reduce the pressure, go for particle velocity


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