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Vibrations, Acoustics and Metrology

Acoustic is the branch of physics which studies vibrations occuring and transmitted in gases, liquids and solids.

Acoustic vibrations modeling can be divided in 3 phases:

  • Emission: an object is the set to vibrate around its neutral position which create the acoustic vibration.
  • Propagation: the vibration of the object induces pressure variations in the surrounding medium. These variations of pressure propagate. It is the acoustic wave.
  • Reception: a sensors is used to detect the variations of pressure (ear, sonometer, sonar).

  • sonogram
    Audiospectrogram (T=time, A=Amplitude, F=Frequency)






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