Accession Number : ADP000952
Title : Draper Laboratory Profiling Current and CTD Meter (PCM),
Corporate Author : CHARLES STARK DRAPER LAB INC CAMBRIDGE MA
Personal Author(s) : Dahlen,John M.
Report Date : FEB 1980
Pagination or Media Count : 12
Abstract : The design of the Draper Laboratory Profiling Current and CTD Meter (PCM) is described. This self-propelled instrument processes and records signals from its sensors in a programmed depth-time sequence. Its most noteworthy features are: an energy-efficient buoyancy control system for sustaining cyclic vertical motion throughout long-term immersion; accurate measurement of current, temperature, and conductivity in the surface wave field; and a microprocessor-centered programmable electronic system for sophisticated control of operational functions. The prototype system is configured to operate unattended on a mooring line while drawing its power solely from internal batteries. It is presently being evaluated in near-surface ocean pilot experiments.
Descriptors : *Oceanographic equipment, *Measuring instruments, *Profiles, *Ocean currents, *Data acquisition, Experimental design, Prototypes, Self propelled, Buoyancy, Control systems, Vertical orientation, Microprocessors, Computer programming, Long range(Time), Immersion, Temperature, Conductivity, Surface waves, Measurement
Distribution Statement : APPROVED FOR PUBLIC RELEASE