Deformation evaluator for mechanically tested materials - includes visual scanner and evaluating unit for deformation in test piece based on pre-defined models

摘要

The appts. measures and evaluates deformation characteristics of mechanically deformed test pieces. It includes a loading device for supporting and placing mechanical load on the test piece and a TV camera mounted for visually scanning the test piece as it si being deformed. A control unit is connected to the output of the TV camera and produces control pulses. A first output of the control unit is connected to the loading device for controlling a program of mechanical load applied to the test piece. The evaluating unit measures the deformation on the work piece and compares it to a deformation model producing output signals which are fed back to a second input of the control unit.