Knowledge-based approach to the formulation of ultrasonic nondestructive testing procedures

In nondestructive testing there is considerable potential for the application of knowledge-based systems. This ranges from the selection of suitable testing techniques, through the formulation of test procedures, to the analysis and interpretation of test results. In this particular case, an expert system shell was used to develop a system which assists in the derivation of procedures for the ultrasonic inspection of welds in ferritic steel. The components of the system are described and examples given of its use and subsequent outputs. The advantages of such an approach are improvements in the speed and accuracy of procedure writing, especially for less experienced personnel, the potential as a training aid and the ability to document the system consultation.<>