Apparatus for measuring the acoustic power of the total or directional emise by a source of any

摘要

P the invention relates to an apparatus for measuring the acoustic power of the total or directional emise by a source whatsoever mounted in the medium air making it possible, on the basis of measurements of pressure and acceleration particular carried in the acoustic field close to the source considered to reconstitute the acoustic field distant. / p & & p & the device according to the invention is characterizes by the fact that it consists of: / p & & p & - of two sensors forms each by a three-dimensional network of microphones, forming between them of the patterns in three dimensions, 1 / p & & p & - of an electronic equipment associated auxidits sensors constructing the filtering, the summation, the calculation of the acceleration, in particular, in order to allow the production of the average values in the spatial sense of the acceleration and speed of the particular of the pressure and temporal derivative, as well as calculation of the pressure of the far field). / p & & p & application: analysis of the characteristics of the acoustic radiation sources is fixed or moving. / p