Uncertainty Management in Knowledge Based Systems for Nondestructive Testing An Example From Ultrasonic Testing

摘要

The use of fuzzy logic, as a framework for uncertainty management, in a knowledge-based system (KBS) for ultrasonic testing of austenitic stainless steels in described. parameters that may contain uncertain values are identified. Methodologies to handle uncertainty in these parameters using fuzzy logic are detailed. The overall improvement in the performance of the knowledge-based system after incorporating fuzzy logic is discussed. The methodology developed being universal, its extension to other KBS for Nondestructive Testing and Evaluation is highlighted.