A miniature deep sea temperature data recorder : design, construction, and use
MetadataShow full item record
A miniature temperature recorder has been developed to be used with the hydraulic piston sediment corer <HPC) on the Deep Sea Drilling Project <DSDP). The instrumentation fits into pressure-sealed slots in the wall of the HPC, allowing temperature measurements to be made simultaneously with coring operations. Temperatures from -2 to 70°C are measured to a resolution of about 0.01°C. Up to 1300 13-bit measurements are recorded in random access memory (RAM), at a sampling rate ranging between 0.1 s to over 100 min., as specified by the operator in a program loaded into a microprocessor of the instrument. During recording the instrumentation uses about 3.5 mamp at 7.5 volts, which can be supplied for about 20 hours of operation by a custom-made pack of silver-oxide batteries. The corer is normally left motionless in the sediment for about 10 min. to allow extrapolation of the measured temperatures to equilibrium in-situ temperature. Examples of data from DSDP Leg 86 are given.
Showing items related by title, author, creator and subject.
Payne, Richard E. (Woods Hole Oceanographic Institution, 1987-10)Measurements were made with ,a group of sensors for 37 days at the end of a dock in Vineyard sound. The sensors included: a thermistor in an R. M. Young aspirated air temperature radiation shield, a thermistor in an R. ...
Improved meteorological measurements from buoys and ships (IMET) : preliminary comparison of solar radiation air temperature shields Crescenti, Gennaro H.; Payne, Richard E.; Weller, Robert A. (Woods Hole Oceanographic Institution, 1989-10)Several different types of solar radiation air temperature shields are evaluated for use at sea on ships and buoys. They include three types of static or Thaller shields, two vane oriented shields, and two fan ventilated ...
Payne, Richard E.; Bradshaw, Alvin L.; Dean, Jerome P.; Schleicher, Karl E. (Woods Hole Oceanographic Institution, 1976-10)For the past five years the Buoy Group at Woods Hole Oceanographic Institution has included temperature as one of the variables recorded in its current meters. These measurements began with the first successful deployments ...