Design of an Industrial CT System for Very Large Composite Structures

摘要

A priority of the design offices of motor cases, (made of advanced composites),is their reliability. For this reason the cylindrical tanks are thoroughly examined along the production line with NDT (Nondestructive Tests) methods to guarantee that every motor case is defect free. Present NDT methods include Infrared Thermography (IT), Holographic Interferometry (HI) and Tangential Film Radiography (TFR). It is hoped that a Computed Tomography (CT) system would allow full automatic control to be achieved. Before making the final decision to order a CT scanner a series of tests were performed on some specific specimens. These tests are described and a description of the scanner is given.