Capillary bridge viscometer and method for measuring specific viscosity
US7331218B2 · kind B2 · utility
8Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2005 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Nov 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N11/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A bridge viscometer for measuring specific viscosity, ηsp(t), includes four capillaries, a delay volume, and a pressure transducer. The pressure transducer generates a signal indicative of a pressure differential, Δp(t), as a sample is introduced into the bridge viscometer. The specific viscosity, ηsp(t), of the sample is calculated based on the pressure differential, Δp(t), and a predetermined internal pressure, IP0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.