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vibration fe model validation nvh laser vibrometer noise vibration and harshness health monitoring of bridges doppler effect microscopes accelerometers nondestructive testing interferometers spectrum analyzers ultrasonic measurmeents laser-based systems micro mirrors resonators dynamic response resonance displacement cantilevers deflection shape inertial sensors surface topography mems testing rf switches vibration sensor non-contact fem validation structural vibration pipeline testing structural health monitoring bridges structural health monitoring shm condition monitoring bridge monitoring bridge span assessment bridge deformation monitoring bridge dynamics pipe structural health monitoring condition monitoring bridges open cast mining conveyor structural analysis of bridges structural health monitoring of bridges pipeline shm power transformer condition monitoring bridge span testing pipeline structural health monitoring bridge maintenance optimizing damping material spatial aliasing modal analysis mid frequency correlation wind tunnel testing nvh troubleshooting brake development simulation and modal test acoustics acoustic camera hummingbirds sound source localization beamforming holography localize sound localize sound emissions multipoint vibrometer transient measurements capture dynamic response golf club dynamics golf club performance 1d motion production test actuators characterization settling time rotational vibrometer operational deflection shapes critical resonance vibration measurements rotating object rotating structures dynamic torsional motion displacement sensors torsional vibraiton crankshaft measurement experimental modal analysis engine testing fe test correlation torsional vibration in shaft non-contact vibration measurement scanning laser vibrometer body-in-white optimizing bonded joints 3d motion