Noise, Vibration, Harshness

Noise, Vibration and Harshness

Noise, vibration, and harshness (NVH): Customer satisfaction is the key word. Developing silent products with low vibration levels is a joint task for simulation and test. 

Full-field vibration measurement for modal analysis and acoustic optimization is lifted to a higher level with Scanning Vibrometry: 

  • reactionless measurements
  • high spatial resolution
  • CAE integration
  • up to 90% testing time reduction with large project


Scanning Vibrometry solves NVH tasks quickly and straight forward!

NVH often deals with lightweight structures. If contact transducers are involved e.g. in Experimental Modal Analysis the influence of the sensor mass has to be taken into account. 

Optical sensing is reactionless. Mass loading is thus no issue in optical vibration sensing. Especially when probing lightweight structures in aerospace and automotive full field scanning vibrometry delivers unambiguous results. The verification of Finite Element Models in a model updating process delivers better results, if transfer functions and mode shapes are measured uninfluenced.

Watch our video podcast for more details and examples.