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:
Jul. 03, 2012
Filed:
Jul. 12, 2010
Andreas Muller, Ostfildern, DE;
Rudiger Frank, Haigerloch, DE;
Andreas Muller, Ostfildern, DE;
Rudiger Frank, Haigerloch, DE;
Abstract
A turbidity measuring device having a four-beam, alternating light arrangement for registering turbidity of a measured medium includes first and second light sources L, L; and first and second receivers R, R. The direct measuring paths extend from light sources L, through a measured medium, to receivers R, and indirect measuring paths extend from light sources L, through the measured medium, to second receivers R; wherein i≠j; wherein turbidity can be ascertained as a function of a quotient A/B by means of an evaluating circuit; wherein A and B are functions at least of signals registered via the direct or indirect measuring paths; wherein at least a first monitor signal, which depends on the first light source, enters into one of the two terms A or B; wherein the light reaches the monitor from the first light source without interaction with the measured medium; and wherein the monitor signal is added to at least one of the signals registered via the measuring paths and entering into the term A or B.