Patent · US Active

Apparatus for determining and/or monitoring a process variable

US8997556B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

ENDRESS+HAUSER GMBH+CO.KG · DE

Inventors

Martin Urban · Bad Kötzting, DE
Serguej Lopatin · Lörrach, DE
Helmut Pfeiffer · Steinen, DE

Key dates

Filing date	Dec 11, 2009
Grant date	Apr 7, 2015
Priority date	—
Expiry date	Jan 2, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01N2009/006
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for determining and/or monitoring at least one process variable of a medium. The apparatus includes: at least one mechanically oscillatable unit, which comes in contact at least partially with the medium; at least one transducer unit, which excites the mechanically oscillatable unit to execute mechanical oscillations and which receives mechanical oscillations from the mechanically oscillatable unit; and at least one housing. At least one limiting element is provided. The limiting element is embodied and arranged in such a manner that the limiting element at least partially surrounds the mechanically oscillatable unit and the therefrom resulting reduction of volume surrounding the mechanically oscillatable unit increases the measuring sensitivity of the apparatus. Furthermore, the invention relates to a limiting element.

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