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:
Jun. 09, 2015
Filed:
Aug. 05, 2010
Michael Kussmann, Duesseldorf, DE;
Lothar Heidemanns, Korschenbroich, DE;
Andreas Jonak, Meerbusch, DE;
Markus Hahn, Kempen, DE;
Heinz Rudde, Hueckelhoven, DE;
Claudia Rieger, Duesseldorf, DE;
Axel Leyer, Moenchengladbach, DE;
Michael Kussmann, Duesseldorf, DE;
Lothar Heidemanns, Korschenbroich, DE;
Andreas Jonak, Meerbusch, DE;
Markus Hahn, Kempen, DE;
Heinz Rudde, Hueckelhoven, DE;
Claudia Rieger, Duesseldorf, DE;
Axel Leyer, Moenchengladbach, DE;
HACH LANGE GMBH, Berlin, DE;
Abstract
A water analysis measurement arrangement for determining a concentration of ions and/or ionic compounds in an aqueous medium includes a closed buffer solution housing comprising a pH buffer solution. The closed buffer solution housing is configured to communicate with the aqueous medium via an electrolyte bridge. A reference electrode is arranged in the closed buffer solution housing. An amplifier ground is disposed on a ground electrode and is configured to directly contact the aqueous medium. A high-impedance amplifier comprises a first capacitive element arranged between the reference electrode and the amplifier ground. An AC voltage generator is arranged between the amplifier ground and the ground electrode. A measurement electrode is configured to directly contact the aqueous medium. A redundant unit comprises a separate low-impedance redundant electrode arranged in the closed buffer solution housing and a high-impedance redundant electrode amplifier comprising a second capacitive element to the amplifier ground.