Fluid flow measurement and control
US9616172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2014 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Apr 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0379
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In accordance with one embodiment, a controller in a fluid delivery system controls magnitudes of pressure in a first volume and a second volume. The first volume is of a known magnitude. The second volume is of an unknown magnitude and varies. The controller estimates a temperature of gas in the first volume and a temperature of gas in the second volume based on measurements of pressure in the first volume and measurements of pressure in the second volume. The controller then calculates a magnitude of the second volume based on measured pressures of the gases and estimated temperatures of gases in the first volume and the second volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.