INVESTIGATION OF METHODS FOR DETERMINING ACTUAL FLAW SIZE IN MATERIALS BY NONDESTRUCTIVE ULTRASONIC MEANS.
Rept. for 15 Nov 61-18 Aug 62,
AUTOMATION INDUSTRIES INC BOULDER COLO
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The program was directed toward the development and evaluation of techniques for determining actual flaw size, orientation and geometry in materials by nondestructive ulrasonic means. The program led to the development of a breadboard instrument capable of presenting an isometric, 3-dimensional, volumetric projection of inconsistencies in metal parts. Three-dimensional display of the material was achieved by the design of a special mechanical manipulator and presentation system employing a single oscillating transducer. Attention to refinements to increase the inspection rate and improve information display for in-process viewing and permanent recording culminated in a fully operational self-contained nondestructive testing instrument. This new instrument represents a new technology using sound beam properties in materials as operating parameters to produce an isometric presentation on a cathode ray tube. End results are an instrument capable of rapid scan rates and a multipurpose display system for setup, analysis by inprocess viewing, and flaw area localization. Author