Permanently attached single PZT guided wave encoded sensor for flood detection of oil rig crossbeams

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This paper presents preliminary results of a new guided wave system for detecting flooding in the hollow crossbeam members of offshore steel oil-rigs. A sensor, permanently attached to a sub-sea structure and powered by seawater, transmits chirp-encoded signals to a monitoring real-time digital signal processing system at surface level. Experiments performed using a jointed steel pipe structure, 10m×0.5m ×16mm, completely immersed in seawater showed that although attenuation was significant, the system successfully identified the signals.

Bibliographical metadata

Original languageEnglish
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation Volume 24
Number of pages7
Publication statusPublished - 9 Apr 2005
EventReview of Progress in Quantitative Nondestructive Evaluation - Golden, CO, United States
Event duration: 25 Jul 200430 Jul 2004


ConferenceReview of Progress in Quantitative Nondestructive Evaluation
CountryUnited States
CityGolden, CO