Скачать или смотреть Advanced Impulse Excitation Technique – Sonelastic

Sonelastic® Systems are test instruments based on the Impulse Excitation Technique for the accurate and non-destructive characterization of elastic moduli (E, G and Poisson ratio) and damping of materials.
The moduli measured are the Young's module, shear module and the Poisson rate. It is suitable for specimen with regular geometries as square bars, cylinders, tube, plates, discs and rings.

The technique consists essentially to excite the specimen under test with a mechanical impulse (a small strike or tap) which can be provided by a manual or electronic impulser. The sample acoustic response contains the resonance frequencies and attenuation information which are processed by the software o electronics in order to calculate the elastic modulus and damping.

The Sonelastic® Solutions is also applied to quality control of parts, components and materials via acoustic signature, which changes with the presence of cracks, pores and deviations of mechanical properties.

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