A Laser Doppler Vibrometer, commonly referred to as a laser vibrometer, is a non-contact optical measuring device used to detect vibrations on the surface of an object. Unlike traditional accelerometers that require physical contact with the vibrating surface, a laser vibrometer uses laser beams to measure the velocity and displacement of the surface without interfering with the objec... https://ommatidia-lidar.com/laser-radar-beyond-doppler-vibrometry-fmcw-lidar-1690