Viscosity measurements based on tracer diffusion
US10620102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Dec 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2013/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for measuring the viscosity of a fluid sample. The method comprising the steps of: (ii) providing a flow of the fluid sample; (iii) providing a component flow, wherein the component flow is a flow of the fluid sample further comprising a tracer component; (iv) generating a laminar flow of the flow (ii) with the flow (iii) in a diffusion channel, such as a microfluidic diffusion channel (2); (iv) measuring the lateral diffusion of the tracer component across the flows; and (v) determining the viscosity of the fluid from the measured diffusion profile, wherein the size of the tracer component is known or is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.