Physics – Classical Physics
Scientific paper
2009-07-03
Physics
Classical Physics
Scientific paper
A new approach for for estimating the acoustic pressure in the near field of a microphone based on non-intrusive direct measurement of acoustic particle velocity is proposed. This method enables the estimation of the acoustic pressure inside a domain located in front of the microphone membrane. The acoustic pressure is calculated using the acoustic particle velocity on the frontiers of this domain and a physical model based on the Green function of the system. Results are obtained using the acoustic velocity measured with Particle Image Velocimetry (PIV) in front of a microphone excited with a plane wave inside a rectangular waveguide. They show that the diffraction of the plane wave by the microphone leads to an increase of the acoustic pressure on the microphone edge in the order of magnitude of 0.1 dB.
Campbell Michael
Degroot Anne
Gazengel Bruno
Macdonald Robert
Richoux Olivier
No associations
LandOfFree
Modelling the pressure field in the vicinity of a microphone membrane using PIV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Modelling the pressure field in the vicinity of a microphone membrane using PIV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling the pressure field in the vicinity of a microphone membrane using PIV will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-705953