Scanning Vibrometer System (SCN)

The SCN Vibrometer measures the vibration and geometry of radiators, enclosures and mechanical structures used in loudspeakers, micro-speakers, headphones and other electro-acoustical or electro-mechanical transducers.

The SCN Analysis Software performs visualization, animation and a modal analysis of the mechanical vibration using the scanned data which is provided by the vibrometer. The sound pressure output at any point in the half-space sound field, the sound power response, the directivity index and the polar characteristic is predicted by using mechanical data. Novel decomposition techniques show radial and circular modes and vibration components related to the SPL output. It is the target of the analysis to provide a better understanding of the interaction between vibration and radiation.  

The SCN Geometry Measurement (optional module) provides the measured cone geometry in dxf format at a high precision. This might be useful for checking the geometrical variations in the quality control and for investigating design choices by performing an FEA using any third-party software. 

Example:

The figure above illustrates the vibration and radiation analysis based on distributed mechanical loudspeaker parameters measured by laser scanning to select the optimal transducer and to perform loudspeaker diagnostics.