Patent ID: 6234019
Filing Date: 2001-05-22
Classification: G01N

Abstract:
A system for determining a density of a sample fluid in a tank, comprising:a sensor fluid housing situated within the tank and containing a first substantially static sensor fluid and a second substantially static sensor fluid, the sensor fluid housing maintaining the first and second sensor fluids separate from the sample fluid;a first sensor situated within the tank, the first sensor being coupled to the sensor fluid housing, the first sensor disposed in the tank at a first fluid level of the sample fluid, the first sensor detecting a first fluid pressure at the first fluid level by acting on the first substantially static sensor fluid;a second sensor situated within the tank, the second sensor being coupled to the sensor fluid housing, the second sensor disposed in the tank at a second fluid level of the sample fluid, the second sensor detecting a second fluid pressure at the second fluid level by acting on the second substantially static sensor fluid, the second sensor being positioned at a predetermined distance from the first sensor; anda transmitter communicating with the first sensor via the first substantially static sensor fluid and communicating with the second sensor via the second substantially static sensor fluid, the transmitter generating at least one signal corresponding to the density of the sample fluid, the at least one signal being generated as a function of the first fluid pressure and the second fluid pressure.