Using DIC to Measure the Shape of Sound and Vibration

This technical presentation was given by Correlated Solutions sales engineer Bluejay Robinson at the 2022 IMAC-XL on Feb 8, 2022 in Orlando, FL and highlights the powerful VIC-3D Vibration Analysis (FFT) digital image correlation system. This three axis, non-contact, full-field optical measurement system can accurately determine the amplitudes and phase changes of operational deflections shapes (ODS) in the frequency domain.

Over the last 10 years, the VIC-3D Vibration Analysis (FFT) system has carved out a unique position among other ODS measurement techniques, especially those involving accelerometers and lasers. This is due largely to the fact that it is faster and cheaper to generate more data for customers using a DIC system. This industry-leading optical technique can measure full-field vibrations from a single transient event such as a door slam or single wing flap, and simultaneously computes valuable 3D strain and displacement data that can be displayed alongside the vibration data.

In line with this year’s IMAC-XL theme of ‘Human Experience of Sound & Vibration’, this presentation will demonstrate how the VIC-3D system obtains ODS data from the face of a guitar after it has been strummed.