Patent · US Expired

Sensor element

US7628900B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Carsten Springhorn · Stuttgart, DE
Johannes Kanters · Stuttgart, DE
Lothar Diehl · Stuttgart, DE

Key dates

Filing date	Oct 22, 2002
Grant date	Dec 8, 2009
Priority date	—
Expiry date	Feb 28, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/4071
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor element having a layer configuration, for detecting a physical property of a gas, in particular for detecting the concentration of a gas component in an exhaust gas of an internal combustion engine. The sensor element has a measuring device, used to detect a physical property of the gas, and a heating device. The heating device includes a heater, which is electrically connected to a first heater supply lead and a second heater supply lead. The first heater supply lead is arranged in a plane of stratification between the second heater supply lead and the measuring device. The first heater supply lead is at an at least largely constant electrical potential.

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