Development of a point-electrode conductivity salinometer with high-spatial-resolution for use in very-saline solutions
Abstract
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. The high spatial resolution was necessary to study the behavior of thermohaline columns in the vicinity of convective/conductive zone boundaries. 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 Drift in the instrument, however, required periodic in situ calibration against the measured specific gravity of withdrawn fluid samples.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1983
- Bibcode:
- 1983STIN...8410550J
- Keywords:
-
- Construction;
- Electric Conductors;
- Electrodes;
- Salinity;
- Solar Ponds (Heat Storage);
- Electrical Properties;
- Measuring Instruments;
- Solar Collectors;
- Spatial Resolution;
- Instrumentation and Photography