Underwater visualization of multi-input interleaved multisine wave fronts for ultrasonic testing of bones specimens using Laser Doppler Vibrometry
Faculty of Applied Engineering Sciences
Engineering sciences. Technology
8th International Conference on Vibration Measurements by Laser, Techniques, June 18-20, 2008, Ancona, Italy
The interaction of Ultrasound Waves with bone material has always been of great interest for the scientific community. This is due to the fact that ultrasonic Waves are non-ionizing, cheap, and easy to generate and to detect. The use of multi-input interleaved multisine offers new applications for ultrasonic testing in bone specimens, where identification of material properties by means of ultrasound pulses often suffers from poor S/N ratio. The research reported here, describes a novel application a of scanning Laser Doppler Vibrometer (LDV) to the analysis of bone specimens by means of underwater visualization of multisines acoustic fields. The results demonstrate that this new non-invasive acoustic measurement technique can successfully visualize and measure reflected acoustic fields, as Well as diffraction effects.