Ultrasonic control contour follower

摘要

The material tester has three mutually perpendicular directions of motion and a rotary motion about an upright axis. Ultrasonic search units are mounted for motion on or about these axes and are connected to control the speeds along several of the axes and about the vertical axis as well as to produce a signal showing the properties of the material to be tested. The search units are controlled by the motion along the several axes and about an upright axis to follow a contour.