Liquid quantity gauging
US5207099A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Jan 15, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/804
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An aircraft fuel gauging system has three or more optical pressure sensors 1 and 3 mounted in a tank 10. One sensor 1 is mounted on the floor 14 of the tank, the other sensors 2 and 3 being displaced from the first sensors and from each other in the x, y and z directions. The output of each sensor 1 to 3 is representative of the mass of fuel above the sensor and is supplied to a processor 20. The processor 20 is also connected to an three-axis accelerometer system 21, a pressure sensor 24 above the liquid and a density sensor 25. Utilizing these inputs the processor 20 computes the location of the fuel surface and, from information in the store 22 of tank shape, calculates the mass of fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.