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CMS-2003-007

Dimensional Measurement of a Composite Ship Hull Using Coherent Laser Radar Yielding Sub-Millimeter Results

Steven D. Hand, David B. Ober, Bryan A. Bond, Edward A. Devine

Title graphic for CMS-2003-007: Dimensional Measurement of a Composite Ship Hull Using Coherent Laser Radar Yielding Sub-Millimeter Results

Abstract

The use and result of coherent laser radar as a non-contact method for the dimensional measurement of a ship hull is described. The hull, keel and deck of a half-scale notional GRP composite hull test specimen are measured to sub-millimeter accuracy then compared to the CAD design model for conformance validation. Positives and negatives of this technology is the subject of this paper and include the high accuracy potential of the coherent-wave laser, the minimal manpower requirements needed to achieve accurate results and the limitation of the equipment’s digital focal length and its effects on set-up and data acquisition. ● Tech One Office and Research Center ● Monroeville, PA 15146 Telephone Fax

Cite this paper

Steven D. Hand, David B. Ober, Bryan A. Bond, Edward A. Devine. Maglev, Inc., Monroeville, PA; MetricVision, Inc., Newington, VA; Naval Surface Warfare Center, Carderock Division, West Bethesda, MD. Presented at the Coordinate Metrology Systems Conference 2003, Greenville, South Carolina, July 21-25, 2003. Coordinate Metrology Society, reference CMS-2003-007.