Acoustics, Ultrasound, Vibration
Acoustics, Ultrasound and Vibration have in common measurement methods: they are all based on dynamic quantities, that are a function of time, and are often analysed in the frequency domain.
Acoustics deals with sound pressure waves that propagate in air in a frequency range that starts at about one Hz and reaches 50 kHz. Ultrasound may also propagate in air but are more common in liquids and in general are measured in frequency range from a tens of Hz to 40 MHz. Vibration is about elastic waves in solids and motion of solid bodies at frequencies from fractions of Hz to tenths of kHz.
INRIM declares CMC in all AUV metrology fields and participates in international CIPM and EURAMET key comparison for demonstration of calibration certificates equivalence in the MRA framework.
AUV metrology is important in health, environment protection, evaluation of noise emission and preventative maintenance of machines.