Absolute inventory control by radial force measurement
US6481279B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jan 11, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00191
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and device for monitoring and optionally controlling the absolute inventory of a dynamic fluid in a vessel having at least one agitator with a rotatable shaft extending in an essentially horizontal direction, wherein there is a resultant force acting on the agitator in an essentially vertical direction in relation to the shaft and a relationship exists between the absolute inventory and the force acting on the agitator in the essentially vertical direction. The method comprises determining a correlation between the vessel absolute inventory and resultant force, measuring the resultant force, and thereby determining a relative absolute inventory within the vessel. The determined absolute inventory value may then be used as a control variable for use in controlling the absolute inventory within the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.