Patent · US Active

Pressure difference sensor for providing a pressure measurement signal

US10458874B2 · kind B2 · utility

0Cited by

2References

6Claims

0Family size

Assignee

Endress+Hauser SE+Co. KG · DE

Inventors

Timo Kober · Potsdam, DE
Benjamin Lemke · Berlin, DE
Rafael Teipen · Berlin, DE
Benjamin Mack · Lörrach, DE

Key dates

Filing date	Jul 18, 2017
Grant date	Oct 29, 2019
Priority date	—
Expiry date	Nov 6, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01L19/0618
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A pressure difference sensor for providing a pressure measurement signal, comprising: a pressure difference measuring cell, which is suppliable with first and second pressures and which outputs the pressure measurement signal; first and second ceramic stiffening elements, each of which is joined with the pressure difference measuring cell and has a duct, via which the first, respectively the second, pressure is suppliable to the pressure difference measuring cell; a platform with first and second pressure input openings, each of which extends from a first surface to a second surface of the platform, wherein the pressure input openings are sealed on the first surface, each with its own isolating diaphragm, and first and second pressures tubes, which are arranged between the stiffening elements and the platform, and wherein each of the first pressure tube and the second pressure tube has at least one bend in a region between the platform and a first, respectively second, connecting area of the corresponding pressure tube.

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