Patent · US Expired

Resistive particle sensors having measuring electrodes

US7872466B2 · kind B2 · utility

6Cited by

7References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Lutz Dorfmueller · Gerlingen, DE
Ralf Schmidt · Nuremberg, DE
Markus Siebert · Leonberg, DE
Sabine Roesch · Ditzingen, DE
Helmut Marx · Würzburg, DE
Henrik Schittenhelm · Stuttgart, DE
Gerd Teike · Ditzingen, DE

Key dates

Filing date	Oct 17, 2005
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Oct 17, 2025

Classification

Technology area (CPC G)Physics
CPC primaryG01N15/0656
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor for determining the concentration of particles in gases, in particular of soot particles, has at least one substrate element, and a measuring area between at least one first and one second measuring electrode, the two measuring electrodes being configured so that by applying a voltage between the measuring electrodes, an asymmetric electric field is formed on the measuring area. The sides of the first and second measuring electrodes, facing one another, may not be parallel to one another, for example. Furthermore, at least one measuring electrode may have a structure along the side facing the other measuring electrode or along the finger electrodes.

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