Patent · US Active

Fluid properties measurement device having a symmetric resonator

US9267872B2 · kind B2 · utility

4Cited by

2References

14Claims

0Family size

Assignee

Rheonics GmbH · CH

Inventors

Klaus Haeusler · Zürich, CH
Joseph H. Goodbread · Zürich, CH

Key dates

Filing date	Sep 6, 2011
Grant date	Feb 23, 2016
Priority date	—
Expiry date	Aug 25, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01N2011/0006
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A fluid properties measurement device includes a symmetric resonant element having a first mass and a second mass, balanced to the first mass and coupled to the first mass by a torsional spring, having a nodal support between the first mass and the second mass. Also, a chamber having at least one opening accommodates the first mass, free of mechanical constraint and a driving and sensing assembly, is adapted to drive the first mass in torsion and sense resulting torsional movement of the first mass. The torsional spring passes through the opening which is sealed about the torsional spring at the nodal support and the second mass is free to be placed into a fluid, for fluid property measurements.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.