公开(公告)号：US12038378B2

公开(公告)日：2024-07-16

申请号：US17566076

申请日：2021-12-30

Applicant: ABB Schweiz AG

Inventor： Benjamin Carr ,  Andrew James Bowen

IPC: G01N21/51 ,  G01N21/47

CPC classification number: G01N21/51 ,  G01N21/4785

Abstract: A system and method for self-calibrating optical turbidity measurements includes a housing comprising a cavity with an inner wall having an essentially straight section and an opening for the medium. An optical standard is moveable between first and second sections within the essentially straight section, and a light source and a light sensor, arranged at the first section and configured to measure the turbidity of the medium, when the optical standard is at the second section, and configured to measure the turbidity of the optical standard and to determine, as a function of the measured turbidity, a calibration coefficient for performing a self-calibration, when the optical standard is at the first section.

公开(公告)号：US20220120679A1

公开(公告)日：2022-04-21

申请号：US17566076

申请日：2021-12-30

Applicant: ABB Schweiz AG

Inventor： Benjamin Carr ,  Andrew James Bowen

IPC: G01N21/51 ,  G01N21/47

Abstract: A system and method for self-calibrating optical turbidity measurements includes a housing comprising a cavity with an inner wall having an essentially straight section and an opening for the medium. An optical standard is moveable between first and second sections within the essentially straight section, and a light source and a light sensor, arranged at the first section and configured to measure the turbidity of the medium, when the optical standard is at the second section, and configured to measure the turbidity of the optical standard and to determine, as a function of the measured turbidity, a calibration coefficient for performing a self-calibration, when the optical standard is at the first section.