The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2014
Filed:
Jan. 03, 2011
Karl Stengel, Deizisau, DE;
Gerhard Haaga, Ohmden, DE;
Michael Neuendorf, Plochingen, DE;
Raymond Sieg, Esslingen, DE;
Karl Stengel, Deizisau, DE;
Gerhard Haaga, Ohmden, DE;
Michael Neuendorf, Plochingen, DE;
Raymond Sieg, Esslingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for determining the quality of the measuring results of a scattered light meter for measuring the particle concentration in motor vehicle exhaust gases, which has at least one scattered light measuring chamber, at least one light source and at least one light sensor, includes the steps: determining the difference between two scattered light sensor signals, that were picked up in a reference state of the scattered light meter; determining the difference between two scattered light sensor signals, which were picked up in a used state of the scattered light meter; and comparing the difference of the signals picked up in the used state to the reference signal difference of the signals picked up in the reference state.