<title>Overview of the knowledge-based inspection system (KBIS)</title>

Abstract

The Knowledge Based Inspection System (KBIS), comprised ofneural network classification ofultrasonic data and advanced ultrasonic sizing methodologies, is being developed under a Navy Manufacturing Technology Program. The intent of the KBIS program is to provide a tool with which an ultrasonic inspector can obtain enhanced information to improve the probability of correctly accepting or rejecting weld discontinuities. Ultimately, the use of KBIS should reduce the long-term cost of ownership ofvessels due to elimination of detrimental discontinuities only.