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METHOD AND DEVICE FOR THE NEAR-SURFACE, NON-DESTRUCTIVE INSPECTION BY MEANS OF ULTRASOUND OF A ROTATIONALLY SYMMETRIC WORKPIECE HAVING A DIAMETER THAT CHANGES FROM SECTION TO SECTION
METHOD AND DEVICE FOR THE NEAR-SURFACE, NON-DESTRUCTIVE INSPECTION BY MEANS OF ULTRASOUND OF A ROTATIONALLY SYMMETRIC WORKPIECE HAVING A DIAMETER THAT CHANGES FROM SECTION TO SECTION
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机译:具有对称变化的直径的旋转对称工件的超声波近表面非破坏性检查的方法和装置
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摘要
A method and a device for the near-surface, non-destructive inspection by means of ultrasound of a rotationally symmetric workpiece having a diameter that changes from section to section are provided. The method and device are based on the insonification of an ultrasonic test pulse into the workpiece at a defined insonification angle and the subsequent recording of an ultrasonic echo signal from the workpiece. Echo signals that trace back to a near-surface region ROI of the workpiece are identified and evaluated. Then, a graphic representation of the surface of the workpiece is generated.
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