Coupled torsional resonators viscometer
US9518906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2011 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Oct 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2009/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring the properties of a fluid that uses a torsionally resonant structure having a base structure; at least two parallel tines affixed to the base structure and projecting in the same direction from the base structure; and wherein the base structure is sufficiently compliant as to mutually couple the tines so that they behave as a single resonator when the tines are driven in synchronized manner. The torsionally resonant structure is immersed in the fluid to be measured and a tine driving mechanism is used to drive the tines torsionally. A tine movement sensing mechanism form measurements of tine movement response to the driving mechanism and the measurements of tine movement to form measurements of fluid properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.