Pressure based fluid gauging system
US6434494B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1999 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Mar 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/80
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for gauging liquid in a container, the method comprising: a) assigning a local three axis coordinate system for the container; b) dividing the container into a plurality of regular volumes; c) disposing a first pressure sensor at a predetermined coordinate proximate the bottom surface of the container, with the pressure sensor producing an output related to detected fluid pressure at the predetermined coordinate; d) assigning to each of the volumes a corresponding volume location coordinate; e) numerically determining, for each of the regular volumes, a corresponding liquid mass value therein based on a relationship between the detected pressure at the predetermined coordinate and a calculated pressure at each of the volume location coordinates; and f) summing all of the numerically determined liquid mass values corresponding to the regular volumes to produce a total fluid mass for the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.