Patent · US Expired

Solid electrolyte sensor for measuring gaseous anhydrides

US6203678A · kind A · utility

7Cited by

3References

3Claims

0Family size

Assignee

Heraeus Electro-Nite International N.V. · BE

Inventors

Volker Leonhard · Kriftel, DE
Ulrich Guth · Greifswald, DE
Hartmut Erdmann · Rheinböllen, DE
Marianne Ilgenstein · Bad Soden am Taunus, DE
Heidrun Koppen · Kelkheim, DE
Dieter Fischer · Steinfeld (Oldenburg), DE

Key dates

Filing date	Oct 13, 1998
Grant date	Mar 20, 2001
Priority date	—
Expiry date	Oct 13, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/4114
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A galvanic solid electrolyte sensor for measuring gaseous anhydrides includes a ceramic solid electrolyte that has a material that conducts electrons, a measuring electrode that includes a pure or doped alkaline or alkaline earth salt and a reference electrode spatially separated from the measuring electrode and sealed off from the anhydride measuring gas by a gas-tight enclosure. The reference electrode is made of a metal material that conducts electrons. The gas-tight enclosure is made of a layer of a glass containing zirconium and lead that covers only the material of the reference electrode, with only a marginal area of this layer abutting the solid electrolyte.

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