公开(公告)号：US09851297B2

公开(公告)日：2017-12-26

申请号：US15025553

申请日：2013-09-30

Applicant: HACH LANGE GMBH

Inventor： Manfred Battefeld ,  Michael Kussmann ,  Bas De Heij ,  Bernd Gassner ,  Frank Steinhauer ,  Hans-Joachim Kumpch ,  Axel Leyer ,  Michael Kueppers ,  Andreas Golitz ,  Andreas Mitreiter ,  Clemens Hanschke ,  Lothar Heidemanns

IPC: G01N21/15 ,  G01N21/00 ,  G01N21/51 ,  G01N21/47 ,  G01N21/94

CPC classification number: G01N21/47 ,  G01N21/15 ,  G01N21/4785 ,  G01N21/51 ,  G01N21/94 ,  G01N2021/152 ,  G01N2021/157 ,  G01N2021/4726 ,  G01N2021/473 ,  G01N2201/0634

Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a sample cuvette. The nephelometric turbidimeter includes a measurement light source configured to emit an axial parallel light beam directed to the sample cuvette, a scattering light detector arranged to receive a scattered light from the sample cuvette, and a diffuser comprising a diffuser body and a diffuser actuator. The diffuser actuator is configured to move the diffuser body between a parking position in which the diffuser body does not interfere with the axial parallel light beam and a test position where the diffuser body is arranged between the measurement light source and the sample cuvette so that the diffuser body interferes with the axial parallel light beam and generates a diffuse test light entering the sample cuvette.

公开(公告)号：US20250012613A1

公开(公告)日：2025-01-09

申请号：US18711259

申请日：2022-11-14

Applicant: HACH LANGE GMBH

Inventor： Carsten Schulz ,  Clemens Hanschke ,  Wayne Boris Perdue

IPC: G01F22/00 ,  G01B13/10 ,  G01N21/03

Abstract: The invention refers to a method for determining a cuvette form correction value (F) for a laboratory analysis cuvette (10) filled with a liquid reagent (60) and having a transparent cuvette body (12) comprising a vertical wall (14) and a bottom wall (13), comprising the method steps: Determining the liquid reagent volume (V) of the liquid reagent (60) filled into the laboratory analysis cuvette (10), optically determining the liquid reagent level (H) of the liquid reagent (60) in the laboratory analysis cuvette (10) by a level determination camera (24), calculating a horizontal inner width (D) of the laboratory analysis cuvette (10) from the determined liquid reagent volume (V) and the determined liquid reagent level (H) by an electronic control (26), and calculation of the form correction value (F) from the calculated horizontal inner width (D) and a reference inner width (D′) of the laboratory analysis cuvette (10) by the electronic control (26).

公开(公告)号：US10408729B2

公开(公告)日：2019-09-10

申请号：US15527710

申请日：2015-11-19

Applicant: HACH LANGE GMBH

Inventor： Manfred Battefeld ,  Hans-Joachim Kumpch ,  Axel Leyer ,  Bas De Heij ,  Clemens Hanschke ,  Michael Kueppers ,  Andreas Jonak ,  Elk Fricke ,  Heinz Rudde ,  Markus Hahn ,  Markus Lenhard ,  Rolf Uthemann ,  Sebastian Minke ,  Andreas Golitz ,  Bernd Gassner ,  Frank Steinhauer ,  Lothar Heidemanns ,  Andreas Mitreiter

IPC: G01N15/06 ,  G01N21/15 ,  G01N21/51 ,  G01N21/53

Abstract: A nephelometric turbidimeter for measuring a turbidity of a liquid sample in a transparent sample cuvette. The nephelometric turbidimeter includes a cuvette chamber housing with a cuvette chamber having the transparent sample cuvette arranged therein, and a drying apparatus. The drying apparatus includes a cuvette chamber inlet opening which vents the cuvette chamber, a cuvette chamber outlet opening which de-vents the cuvette chamber, an air circulator which circulates air from the cuvette chamber outlet opening to the cuvette chamber inlet opening, and a drying body. The drying body is provided as a container of a hygroscopic agent defined by a drying substance which is arranged in a drying path between the cuvette chamber outlet opening and the cuvette chamber inlet opening so that air flows through the drying body.

公开(公告)号：US10126236B2

公开(公告)日：2018-11-13

申请号：US15806343

申请日：2017-11-08

Applicant: HACH LANGE GMBH

Inventor： Manfred Battefeld ,  Michael Kussmann ,  Bas De Heij ,  Bernd Gassner ,  Frank Steinhauer ,  Hans-Joachim Kumpch ,  Axel Leyer ,  Michael Kueppers ,  Andreas Golitz ,  Andreas Mitreiter ,  Clemens Hanschke ,  Lothar Heidemanns

IPC: G01N21/00 ,  G01N21/15 ,  G01N21/47 ,  G01N21/51 ,  G01N21/94

Abstract: A method for detecting a contamination of a cuvette of a turbidimeter. The turbidimeter includes a light source which emits a light beam directed to a cuvette, a scattering light detector, and a diffuser with a body and an actuator. The actuator moves the body between a parking position and a test position where the body is between the measurement light source and the cuvette, thereby interferes with the light beam, and generates a diffuse test light entering the cuvette. The method includes activating the actuator to move the body from the parking position into the test position, activating the light source, measuring a test light intensity received by the scattering light detector, comparing the test light intensity measured with a reference light intensity, and generating a contamination signal if a difference between a reference light intensity and the test light intensity measured exceeds a first threshold value.

公开(公告)号：US09410882B2

公开(公告)日：2016-08-09

申请号：US14890428

申请日：2013-05-13

Applicant: HACH LANGE GMBH

Inventor： Barbara Haase ,  Manfred Battefeld ,  Andreas Mitreiter ,  Michael Kussmann ,  Bas De Heij ,  Clemens Hanschke ,  Wayne Perdue

IPC: G01N21/00 ,  G01N21/51

CPC classification number: G01N21/51 ,  G01N21/53 ,  G01N2021/513 ,  G01N2201/0633 ,  G01N2201/0636

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.

Abstract translation: 用于测量样品比色皿中的液体样品的浊度的浊度计包括配置成将样品比色皿定位在规定的比色杯位置的比色皿接收装置，被配置为在样品比色皿中产生平行光束的光源，环形45° 收集镜，被配置为围绕样品比色皿，与环形45°收集镜同心设置的散射体，布置成接收由散射体散射的光的散射光检测器和与环状45°同轴设置的环形45°浓度反射镜 收集反射镜并与环形45°收集镜光学相对。 环形45°收集镜与光束同心设置。 环形45°浓度反射镜被配置为围绕散射体。