Methods and apparatus to determine phase-change pressures
US8335650B2 · kind B2 · utility
10Cited by
28References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2009 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Nov 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N7/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Example methods and apparatus to determine phase-change pressures are disclosed. A disclosed example method includes capturing a fluid in a chamber, pressurizing the fluid at a plurality of pressures, measuring a plurality of transmittances of a signal through the fluid at respective ones of the plurality of pressures, computing a first magnitude of a first subset of the plurality of transmittances, computing a second magnitude of a second subset of the plurality of transmittances, comparing the first and second magnitudes to determine a phase-change pressure for the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.