Measuring and testing – Specific gravity or density of liquid or solid
Patent
1995-01-11
1996-06-18
Williams, Hezron E.
Measuring and testing
Specific gravity or density of liquid or solid
G01N 932
Patent
active
055266770
ABSTRACT:
A method and apparatus for measuring the density or specific gravity of a fluid sample uses a single sensor. A reservoir contains another fluid of known density which is not miscible with the fluid sample. Sensors are disposed proximate to the reservoir to detect the passage of the fluid sample through the non-miscible fluid medium. A microprocessor monitors the sensor and calculates the specific gravity of the fluid sample. The microprocessor measures the amount of time one sensor is eclipsed as the fluid sample droplet falls through the fluid medium and calculates the density or specific gravity based on that amount of time. The microprocessor also may measure a second amount of time, the time required for the fluid sample to traverse through the fluid medium between two sensors. The microprocessor can use this second amount of time to measure the fluid droplet diameter or size. The microprocessor corrects the calculated density or specific gravity for any deviation caused by the size of the fluid sample.
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Oda Christine K.
Serim Research Corporation
Williams Hezron E.
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