Interferometer
PulsESPI
Steinbichler Optotechnik
The ESPI system from Steinbichler Optotechnik is an extremely flexible instrument for deformation and vibration analysis and 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 or spatially 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.
PulsESPI
For the investigation of transient and dynamic events on excited objects under operational conditions, Steinbichler Optotechnik has developed the PulsESPI system. It combines the advantages of both the conventional pulsed holography, and the Electronic Speckle Pattern Interferometry.
The PulsESPI camera is suited for double-pulse as well as for triple-pulse recordings. A specially designed triggersystem controls the PulsESPI camera and the ruby laser for object illumination. Due to the short recording time (few nanoseconds), the PulsESPI is insensitive to disruptive factors like low-frequent vibrations of buildings or thermal schlieren.
Even parts with distinct characteristics as well as high fringe densities can be evaluated reliably. In the automotive industry, the PulsESPI system has proven its functionality for the investigation of brakes and car bodies at many times.
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