Ultrasonic Imaging and Automated Flaw Detection System
Abstract
An automated inspection system is described for detecting, imaging, and classifying flaws in cannon billets. The first phase of the project has produced a flaw detection system capable of triggering rapidly and reliably on flaws down to one-fourth inch in cross-section in billets up to 18 feet in length and 22 inches in diameter. This portion of the system has been optimized for low cost, high speed, simplicity, and maintainability utilizing many commercially available components with a minimum use of one-of-a-kind electronic interface boards. It is a versatile, programmable stand-alone unit capable of scanning one billet every half hour. The second phase system is designed to considerably enhance the images of flaws which have been detected and located using the first phase system by providing a much larger ultrasonic array aperture and digitizing capacity. The resulting hardware is capable of both quasi-optic lens processing and digital holography. Keywords include: Flaw detection; Array imaging; Computer controlled; and Acoustic system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1986
- Accession Number
- ADA168195
Entities
People
- G. P. Capsimalis
- J. F. Mcdonald
- L. Jones
Organizations
- Rensselaer Polytechnic Institute