Back to results
US 7,543,477 B2Granted
Sensor for detecting particles
AssigneeRobert Bosch GmbH
InventorsJoachim Berger, Rainer Strohmaier, Detlef Heimann, Norbert Breuer, Ralf Wirth, Karl-Franz Reinhart, Ralf Schmidt, Walter Bauer, Kai-Achim Baldenhofer, Bernard Kamp, Thomas Grau
Life of this patent
Estimating the term…
Abstract
A sensor for detecting particles in a gas flow, in particular soot particles in an exhaust gas flow, includes at least two measuring electrodes, which are positioned on a substrate made of an insulating material. To protect the measuring electrodes, they are covered by a protective layer.
Claims13
A sensor for detecting particles in a gas flow, comprising:
- a substrate including an electrically insulating material;
- at least two measuring electrodes positioned on the substrate;
- and
- a protective layer covering the at least two measuring electrodes;
- wherein the at least two measuring electrodes are adapted to measure resistance through the protective layer.
2 more elements
A sensor for detecting particles in a gas flow, comprising:
- a substrate including an electrically insulating material;
- at least two measuring electrodes positioned on the substrate;
- and
- a protective layer covering the at least two measuring electrodes;
- wherein the protective layer includes an electrically insulating material, whereby the electrically insulating material is doped with a conductive material.
2 more elements
Dependencies are inferred from the claim text.