The ESPI system from Steinbichler Optotechnik is an extremely flexible instrument for deformation and vibration analysis. One of its most important features is that the system can be adapted to the customer´s specific demands and applications.

By using the wave character of laserlight, even small deformations can be detected with an accuracy of 0.05 µm. The deformation is measured either one-dimensionally (typ. out-of-plane) or spatially (in- and out-of-plane) with a 3D-unit which is optionally available.

In the vibration analysis, e.g., resonance frequencies and vibration modes of excited parts can be determined fast and precisely. Innovative developments such as the "Free Boundary" and the "Sine Stepping/Universal File" functions significantly improve the handling of the measurement system.