N95-165 An Automated Real-Time Ultrasonic Weld inspection and Evaluation System

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 28466
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Karta Technology, Inc.
1892 Grandstand, San Antonio, TX, 78238
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Satish M. Nair, Ph.d.
 (210) 681-9102
Business Contact
Phone: () -
Research Institution
Weld inspection reliability is a major thrust area for the Navy's R&D program. Needs exist for nondestructive evaluation (NDE) technologies that can reliably detect, classify and size discontinuities in weldments, and that use this information to determine if the defects are acceptable or rejectable. Recent work performed by the Naval Surface Warfare Center with ultrasonic NDE methods have identified procedures and algorithms that address these needs. Independent research efforts, funded by the electric utility industry, have similarly indicated the potential of automating ultrasonic methods for the inspection and evaluation of pipe welds. Results from these programs are proposed to be used in this project to develop a real-time ultrasonic weld inspection and evaluation system. In Phase I, we will focus at advancing the state-of-the-art in two areas, namely: (1) the development of a sensor that can automatically track the position of an ultrasonic transducer, during manual scanning and (2) the development of a neural network based software package that can classify, size, and evaluate defects from ultrasonic NDE images. Feasibility studies performed in these areas should pave the way for the development of a system that can be used with manual and automated scanning techniques for weld inspection and evaluation.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government