Method and device for measuring by penetrometry an interface or surface tension of an interface between two fluids
US8756982B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Apr 17, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2013/0283
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for measuring an interfacial tension (σ) for liquid-liquid interfaces or surface tension for liquid-gas interfaces. The method is characterized in that the measurement is carried out by the penetrometry of an interface between two fluids of a sample in a pipe comprising at least one window made of a transparent material, using a rod moving at constant speed orthogonally to the interface, a profile of the interface being deformed by the penetration of the rod and a series of images of the profile being captured in real time by an image-capturing system during the deformation and the crossing of the interface. A device for implementing the method is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.