Development of a point-electrode conductivity salinometer with high spatial resolution for use in very saline solutions
A conductivity probe and circuit were developed to measure salinities in sodium chloride salt-gradient solar ponds. A point-electrode salinometer design was chosen to give a spatial resolution of approximately 1 mm (0.039 in.). (Such high spatial resolution was necessary to study the behavior of thermohaline columns in the vicinity of convective/conductive zone interfaces.) The point-electrode conductivity instrument was designed for use in up to 25 wt % salinities with immersion times of about 0.1 year or longer. Drift in the instrument, caused principally by changes in the surface condition of the platinum probe tip and reflected by changes in the probe cell constant, required periodic in situ calibration against the measured specific gravity of withdrawn fluid samples. Other methods of salinity/density measurement are discussed.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6466097
- Report Number(s):
- LA-9654-MS; ON: DE83010134
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Development of a point-electrode conductivity salinometer with high spatial resolution for use in very saline solutions
Development of a point-electrode conductivity salinometer with high-spatial-resolution for use in very-saline solutions
Related Subjects
47 OTHER INSTRUMENTATION
SALINITY
MEASURING INSTRUMENTS
CALIBRATION
COMPUTER CODES
DESIGN
ELECTRIC CONDUCTIVITY
ELECTRIC PROBES
ELECTRODES
ELECTRONIC CIRCUITS
PLATINUM
SODIUM CHLORIDES
SOLAR PONDS
SPATIAL RESOLUTION
TEMPERATURE DISTRIBUTION
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
HALIDES
HALOGEN COMPOUNDS
METALS
PHYSICAL PROPERTIES
PLATINUM METALS
PONDS
PROBES
RESOLUTION
SODIUM COMPOUNDS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SURFACE WATERS
TRANSITION ELEMENTS
141000* - Solar Collectors & Concentrators
440300 - Miscellaneous Instruments- (-1989)