MetroLaser developed, engineered and markets a novel Laser Vibrometer for structural modal analysis.

The VibroMet is a compact, low-cost and easy-to-use laser vibrometer that can measure the frequency and amplitude of vibration of any surface. The VibroMet performs the vibration measurement remotely to distances of up to 3 meters without adjustments. The laser beam is simply pointed at the target. This breakthrough in ease-of-use Laser Vibrometers is made possible by a patented design developed at MetroLaser.

The VibroMet was recently demonstrated at the civil engineering laboratory of the University of California, Irvine to test the damage level of a bridge supporting concrete column. The VibroMet was mounted on a camera tripod one meter from the concrete column. The laser probe beam was directed at the rough, unprepared surface and readily measured changes in characteristic frequency associated with the corresponding damage levels. The results agreed with those obtained using multiple accelerometers.