Patent · US Expired

Pressure measuring device

US6615665B1 · kind B1 · utility

19Cited by

6References

8Claims

0Family size

Assignee

Endress+Hauser Inc. · DE

Inventors

Karl Flögel · Schopfheim, DE
Thomas Uehlin · Schopfheim, DE
Frank Hegner · Bad Kötzting, DE
Karlheinz Banholzer · Eschborn, DE

Key dates

Filing date	May 31, 2000
Grant date	Sep 9, 2003
Priority date	—
Expiry date	Jun 19, 2020

Classification

Technology area (CPC G)Physics
CPC primaryG01L19/0627
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A pressure measuring device with a housing (21, 53) and a pressure measuring cell is provided, the pressure measuring cell being protected from interference, in particular independently of its installation position in the housing (21, 53), and comprising: a housing (21, 53), a pressure measuring cell, which has at least one pressure-sensitive measuring diaphragm (3, 35, 37), on the outer side of which a pressure (P, P1, P2) acts during operation, which has a transducer for converting a pressure-dependent deflection of the measuring diaphragm (3, 35, 37) into an electrical measured variable and which has free outer circumferential surfaces, which are provided with an electrically conductive coating (31, 61), and an electronic circuit (13, 49) for converting the electrical measured variable into a measuring signal.

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