A key goal in several structural dynamics studies is to define the locations on a structure where failures are most likely to occur. Fatigue damage is a result of fluctuating strain. Therefore, it is ...

Polytec's PSV-400-3-dimensional scanning vibrometer measures vibration characteristics of aerospace structures, such as aging aircraft, components or preproduction products. Three independent sensor ...

The Polytec Inc. PSV-400-3D scanning laser vibrometer, utilized in experimental modal analysis, uses Doppler shift of back-scattered laser light to determine instantaneous velocity and displacement of ...

Today, a vast number of micro-manufactured sensors, actuators and components vibrate at frequencies in the high MHz range. Some examples of these high-frequency vibrating systems include surface ...

The Air Force Institute of Technology (AFIT; Wright Patterson AFB, OH) will employ Polytec's PSV-400-3D scanning vibrometer for experimental modal analysis. AFIT will use the tool, which permits ...

Rolling tires stimulate a considerable amount of passenger car noise (NVH) inside and outside the passenger cabin for a large range of driving conditions. These are three important reasons this ...

Laser vibrometers consist of a low-power laser beam, picking up the signature of a vibrating object and transferring it into an output proportional to velocity and displacement that the researcher can ...

Trevor Michelson and Chris Seck sit at a setup in Seck's lab, where the cryogenic ion trap apparatus, center, is surrounded by three heads of the laser scanning vibrometer, each fixed on a different ...

From left, J.D. Rice, Trevor Michelson and Chris Seck look at a monitor in Seck’s lab. The three are wearing safety glasses to protect against the laser beams used by the scanning vibrometer, which is ...