Scanning Laser Vibrometry

The 6NAPSE Group carries out measurements without contact and vibration characterizations by scanning 3D laser vibrometry.

The 6NAPSE Group has been using scanning 3D laser vibrometry for several years. This experience makes our company a reference in the field. We have strong expertise in the aeronautics and space sectors, but also in the automotive, railway, etc.

Measurements and vibration characterization by laser vibrometry

Vibratory and acoustic characterization of materials
Experimental modal analysis (EMA) / Operational measurements of structure or subset (ODS)
High frequency registration of finite element models
Reliability of electronic boards / components
Vibration analysis of electronic micro-components, MEMS – NEMS
Study of the influence of damping materials on the vibro-acoustic behavior of structural elements
Strain mapping

On which parts ? Which dimensions ?

From electronic micro-components to macro-structures (e.g. motor, turbine, etc.).

Type of excitation :

Measurement achievable under real excitation (operational measurements, ODS)
Measurements achievable under artificial excitation (impact hammer, vibrating pot) MIMO

Measurements for the Industry

Vibrometry: operational deformations of a plate

Advantages of Scanning Laser Vibrometry

Measurement without contact, therefore non-intrusive
High spatial resolution (number of pts / area units)
Application on parts with high thermal stresses
Use of mirror for simultaneous measurement of a front and rear face
3D measurement with optimized measurement time and possible automation (scanning system)
Extended analysis domain (very wide frequency up to 80KHz)
Automation of the measurement from a mesh taken from the video image of the object
Possibility of using the finite element model of the simulation

We also travel on site to carry out the measurements (mobile tool: packaging for transport to the customer site)

Applications

Vibratory characterization test of electronic card on shakers and measurements by scanning 3D laser vibrometry
Measurement on part in additive manufacturing for the Aeronautics sector
Dynamic characterization of the Poisson’s ratio of acoustic materials