Method and device for the investigation of the mechanically - dynamic properties of a workpiece

摘要

described is a method to study the mechanical and dynamic properties of a workpiece.with the workpiece along a first direction of a cyclic train and / or druckbeanspruchung is suspended.by means of a krafterfassungseinrichtung is the train and / or druckbeanspruchung of workpiece repru00e4sentierendes kraftsignal produced and by means of a travel - erfassungseinrichtung is ein a predetermined section of the workpiece, at least one elongation repru00e4sentierendes wegstreckensignal generated.the kraftsignal and wegstreckensignal a auswerteeinrichtung intothe beanspruchungszyklus received during a kraftsignal and wegstreckensignal a for the mechanical dynamic properties of the specified section characteristic size it is growingmm.the method is characterized bythat the way a second direction with a grid of contrasting codierstreifen / workpiece under the wegstreckenerfassung continuously along the second direction under athe sampling frequency of a laser beam to be covered and the intensity of the modulated laser light codierstreifen is included.the time course of the wegstreckensignals corresponds to the recorded intensity of the modulated laser light, and the auswerteeinrichtung determined from the time course of the wegstreckensignals thelu00e4ngenu00e4nderungen differing by two or more...