Modifications and improvements to the Sea Beam system on board R/V Thomas Washington

A number of modifications to the narrowbeam echo-sounder and echo processor of the Sea Beam multibeam bathymetric survey system have been implemented. These include the design and construction of a digital pitch compensator, the ability to use a variety of sensors for vertical reference, the design and construction of hardware test equipment, and an interface to the shipboard DEC VAX-11/730 computer for data logging, automation of start-up procedures, and performance monitoring.<
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