Abstract
In heavy industries such as shipbuilding, managements of the size of large-scale parts with dimensions of dozen of meter with everal millimeters accuracy are required. urrent laser ranging system, which uses an intensity-modulated light, cannot be used in such fields because of the low measurement accuracy fo r long-range measurements and the need of reAective target. The optical ranging system using a laser diode with optical frequency modulation (FM) is another candidate for ranging system in heavy industries.
© 2002 Optical Society of America
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