The performance (or quality) of a product is often checked by measuring the radiated sound (noise) from the vibrating structure. Often this test has to be done in an environment with background noise, which makes the measurement difficult. When using a (pressure) microphone the background noise can be such that it dominates the radiated sound from the vibrating structure. However, when using a particle velocity sensor, the Microflown [1,2], near the vibrating structure, the background noise has almost no influence (it is almost cancelled) and the sound from the structure is measured with a good S/N ratio. The experimental results are explained in terms of the different boundary conditions at the surface of the vibrating structure for the pressure and the particle velocity.
|Number of pages||5|
|Publication status||Published - 2005|
|Event||Forum Acusticum Budapest 2005 - Budapest, Hungary|
Duration: 29 Aug 2005 → 2 Sep 2005
|Other||Forum Acusticum Budapest 2005|
|Period||29/08/05 → 2/09/05|