Improving accuracy by adding additional sensors to a density measuring system
AssigneeHoneywell International Inc.
InventorsDirk van Duijn, Ronald Schrier, Frank Edo Bakker
Life of this patent
Estimating the term…
Abstract
Methods, systems, and devices for measuring density involve performing a buoyancy measurement with respect to a product in a tank and determining a first density based on the buoyancy measurement. A pressure measurement of pressure in the tank is performed, and a second density is determined based on the pressure measurement. An offset of the buoyancy measurement is calculated using the first and second densities, and the offset is applied to correct the first density measured at the predetermined position in the tank.
Claims17
A method for measuring density, comprising:
- performing a buoyancy measurement with respect to a product in a tank at a first position and determining a first density based on the buoyancy measurement at the first position, wherein the first position is a predetermined position in the tank;
- performing a pressure measurement of pressure in the tank at the predetermined position and determining a second density based on the pressure measurement at the predetermined position in the tank;
- calculating an offset of the buoyancy measurement using the first density and the second density;
- and
- applying the offset to correct the first density measured at the predetermined position in the tank.
A system for measuring density, comprising:
- at least one processor;
- and
- a non-transitory computer-usable medium embodying computer program code, the computer-usable medium operable to communicate with the at least one processor, the computer program code comprising instructions executable by the at least one processor and operable for:
- performing a buoyancy measurement with respect to a product in a tank at a first position and determining a first density based on the buoyancy measurement at the first position, wherein the first position is a predetermined position in the tank;
- performing a pressure measurement of pressure in the tank at the predetermined position and determining a second density based on the pressure measurement at the predetermined position in the tank;
- calculating an offset of the buoyancy measurement using the first density and the second density;
- and
- applying the offset to correct the first density measured at the predetermined position in the tank.
An apparatus for measuring density, comprising:
- an electromechanical servo gauge for performing a buoyancy measurement with respect to a product in a tank, wherein a first density is determined based on the buoyancy measurement at a predetermined position in the tank;
- a pressure sensor for performing a pressure measurement of pressure at the predetermined position in the tank, wherein a second density is determined based on the pressure measurement;
- and
- a processor for calculating an offset of the buoyancy measurement using the first density and the second density, wherein the offset is applied to correct the first density measured at the predetermined position in the tank.
Dependencies are inferred from the claim text.