Turbidimeter

US9410882B2 · kind B2 · utility

Assignee

• HACH LANGE GMBH · DE

Inventors

• Barbara Haase · Berlin, DE
• Manfred Battefeld · Goldkronach, DE
• Andreas Mitreiter · Berlin, DE
• Michael Kussmann · Goldkronach, DE
• Bas De Heij · Dormagen, DE
• Clemens Hanschke · Berlin, DE
• Wayne Boris Perdue · Berlin, DE

Key dates

• Filing date: May 13, 2013
• Grant date: Aug 9, 2016
• Expiry date: May 13, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/0636
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A turbidimeter for measuring a turbidity of a liquid sample in a sample cuvette includes a cuvette receiving device configured to position the sample cuvette in a defined cuvette position, a light source configured to generate a parallel light beam in the sample cuvette, an annular 45° collecting mirror configured to surround the sample cuvette, a scattering body arranged concentric to the annular 45° collecting mirror, a scattering light detector arranged to receive light scattered by the scattering body, and an annular 45° concentration mirror arranged coaxially to the annular 45° collecting mirror and optically opposite to the annular 45° collecting mirror. The annular 45° collecting mirror is arranged concentric to the light beam. The annular 45° concentration mirror is configured to surround the scattering body.