RESEARCH ON AN UNDERWATER LOCATION SYSTEM FOR ULTRASONIC, ELECTROMAGNETIC AND VIDEO INSPECTION OF NAVAL VESSEL HULLS

Authors
  1. Murphy, R.V.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);New Brunswick Research and Productivity Council, Fredericton NB (CAN)
Abstract
Results are reported of a study performed to investigate the accuracy and repeatabiity of various nondestructive testing techniques applied underwater to naval vessel hulls. Techniques examined included: visual inspection, colour video inspection, ultrasonics thickness gauging of hull plate, cathodic protection measurement and electromagnetic gauging of hull paint thickness. The development of a prototype underwater acoustic location system designed to track the position of an inspection tool as it moves about the vessel hull is described. Results are reported on the accuracy and repeatability of the prototype system and recommendations are made for future underwater location systems.
Report Number
DREA-EM-87-11 — Contractor Report
Date of publication
15 Oct 1987
Number of Pages
156
DSTKIM No
88-01752
CANDIS No
54983
Format(s):
Microfiche filmed at DSIS;Originator's fiche received by DSIS;Hardcopy

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