Hi ! I need your help ! I have been kind of stuck with the following problem for a few days : I made measurements on a plate radiating sound with an accelerometer and I found very low values of displacement(1-10 pm !). It seems very very very low (less than 1 atom !) Depending on the frequency, the sound intensity is more or less 30 dB near the plate (measured at 1cm of distance). Does someone have any idea of the typical vibration amplitude of a plate radiating sound ? And of the relationship between the vibration amplitude of a plate and the acoustic power radiated ? Thanks a lot !