Advanced volume gauging device
US6993966B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 10, 2002 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Jul 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A new high precision volume gauging system for measuring the volume of a propellant VL enclosed at a first pressure PU within a propellant tank (40) of a volume VT. The improved precision compared with prior art is achieved in that it comprises a high precision pressure sensor (90) which is comprised of a reference chamber (115) that is connected to the propellant tank (40) by a communication line (140), a valve (150) for controlling the gas flow through the line (140), and a high precision differential pressure sensor (95) that is arranged to record the pressure difference between the reference chamber (115) and the propellant tank (40) to which it is connected through a communication line (130).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.