A miniature deep sea temperature data recorder : design, construction, and use
Citable URI
https://hdl.handle.net/1912/7828DOI
10.1575/1912/7828Abstract
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.
Suggested Citation
Technical Report: Koehler, Richard L., von Herzen, Richard P., "A miniature deep sea temperature data recorder : design, construction, and use", 1986-01, DOI:10.1575/1912/7828, https://hdl.handle.net/1912/7828Related items
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