Patent · US Active

Ceramic pressure measuring cell

US9625335B2 · kind B2 · utility

3Cited by

5References

13Claims

0Family size

Assignee

ENDRESS+HAUSER GMBH+CO.KG · DE

Inventors

Andrea Berlinger · Baden-Baden, DE
Ulfert Drewes · Bad Hersfeld, DE
Michael Philipps · Lörrach, DE
Andreas Rossberg · Bad Säckingen, DE
Elke Schmidt · Bad Säckingen, DE

Key dates

Filing date	Feb 10, 2012
Grant date	Apr 18, 2017
Priority date	—
Expiry date	Sep 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01L9/0075
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A pressure measuring cell includes at least one ceramic measuring membrane body; and at least one ceramic platform, wherein the measuring membrane body is connected with the platform along an annular, peripheral joint. The joint is formed as a welded connection between the measuring membrane body and the platform, wherein the measuring membrane body has a pressure-dependently deformable measuring membrane. A pressure sensor includes a pressure measuring cell and a housing, wherein the pressure measuring cell is held by the housing, and wherein the pressure measuring cell closes a housing opening, through which the pressure measuring cell communicates with an environment of the housing. A seal is clamped between a sealing surface surrounding the opening of the housing and a sealing surface of the pressure measuring cell.

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