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9 February 2026
The equipment used in this test was the Ommatidia LiDAR Q2 Laser Doppler Vibrometer, part of the QSeries of instruments based on FMCW Laser RADAR (Frequency Modulated Continuous Wave) technology. The Q2 is a highresolution instrument designed to measure the velocity or displacement of a surface without physical contact. The system incorporates a multichannel coherent detection architecture composed of 65 simultaneous laser beams. Thanks to its photonic integrated circuits (PICs), the Q2 can process multiple optical channels in parallel, enabling simultaneous measurement of vibrations.
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Analysis of Chirp Acoustic Signals

This work explores the measurement and analysis of chirp acoustic signals using the Ommatidia Q2 Laser Doppler Vibrometer. With its non-contact, high-resolution vibration sensing, the Q2 enables accurate capture of acoustic responses over a wide frequency range, making it a powerful tool for advanced acoustic testing and diagnostics.
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