Non-Destructive Methods for Inspection of Gas Pipes in Gas Piping Systems. AnnualReport No. 2, November 1994-October 1995

摘要

The overall objective of the program is to demonstrate new sensor technology forthe nondestructive inspection of pipes in gas piping systems. Specifically, the authors intend to first establish the feasibility of using laser-based ultrasound (LBU) technology to generate and detect ultrasonic Lamb waves in a gas pipeline. Next they will establish the capability of this approach to detect cracks, wall thinning and pitting in model specimens. Finally they will demonstrate the operation of a breadboard system to inspect and map a pipeline segment containing real or simulated defects.