Patent · US Active

Method for adjusting a gas sensor

US9410922B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Hartwig Lehle · Stuttgart, DE
Lothar Diehl · Stuttgart, DE
Jochen Betten · Stuttgart, DE
Moritz Waldorf · Stuttgart, DE
Thomas Seiler · Stuttgart, DE

Key dates

Filing date	Sep 25, 2012
Grant date	Aug 9, 2016
Priority date	—
Expiry date	Jul 24, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/007
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method for adjusting a gas sensor having a hollow chamber connected to a measuring gas chamber and having an electrochemical pump cell electrochemically pumping the gas component into or out of the hollow chamber, at least two pumping-in phases are provided in which the gas component is pumped into the hollow chamber by the electrochemical pump cell, and at least two pumping-out phases are provided in which the gas component is pumped out of the hollow chamber by the electrochemical pump cell. On the basis of at least one feature of the pump current during the pumping-out phases (Mout), at least one piece of information for adjusting the gas sensor is generated. A parameter regarding the pumping-in is predefined differently in the at least two pumping-in phases.

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