ESPI is a high sensitive measurement system for measuring very small deformations.

The interferometrical method ESPI is well suited to measure smallest 3D displacements and plane strain with a resolution of approx. 10 nanometers or 1 micrometer per meter.

The high measuring resolution in the determination of deformation and strain is well suited for:

• Material testing
• Strength assessment
• Optimization of constructions
• Investigations of linear and non-linear behavior
• Characterization of creep and aging properties
• Verification of numerical simulations
• Characterization of heterogeneous materials

Important factors in the product development process are the component optimization, usage of new materials and the improvement of numerical calculation models. In all these areas a better understanding of the material and component behavior is necessary. ESPI supports these processes with easily understandable results from complex deformation procedures.