公开(公告)号：US20250110049A1

公开(公告)日：2025-04-03

申请号：US18895175

申请日：2024-09-24

Applicant: ABB Schweiz AG

Inventor： James Andrew Glover

IPC: G01N21/3577 ,  G01N21/31 ,  G01N21/33 ,  G01N21/359

Abstract: An apparatus and method for measuring absorption of a liquid at several highly resolved wavelengths in the ultraviolet light spectrum with additional wavelengths or wavelength groups in the visible and/or near infrared light spectrum is provided. The apparatus includes a submersible housing that incorporates a broad band light source that emits ultraviolet, visible, and near infrared light, optical windows defining a measurement region of the liquid, an optical chopper unit to alternate between reference and measured light beams, an optical sensor to detect a specific wavelength or group of wavelengths in the visible or near infrared light spectrum from the broadband light source, a slit to define the broadband light geometry onto a diffraction grating, the diffraction grating to modify the broad band light beam into highly wavelength resolved ultraviolet wavelengths, and a line sensor to detect the highly wavelength resolved ultraviolet light.