System und Verfahren zur Open-Path-Messung einer Flüssigkeit

Details

Veröffentlichungs-Nr.

EP4492016

Aktenzeichen

EP23184890

Anmeldetag

11. Juli 2023

Veröffentlichung

15. Januar 2025

Rechtsraum

EP

IPC

G01F1/7086G01N21/17G01B9/02055// G01N21/27G01N21/45

Abstract

A system (100; 200; 300) for open-path sensing of a property of a fluid (20) in an environment (10) comprises: a sensing light source (110); a pumping light source (120; 220; 320) for outputting a pumping beam (122; 222; 322) into the environment (10) for inducing a change of light propagation characteristics of the fluid (20); wherein the system (100; 200; 300) outputs a probing beam (116; 216; 316a, 316b) and a reference beam (117; 217) into the environment (10), such that the probing beam (116; 216; 316a, 316b) has a larger intersection with the pumping beam (122; 222; 322) than the reference beam (117; 217); wherein a first interferometer (130) detects a phase shift and/or an intensity change of a received probing beam (116; 216; 316a, 316b); and wherein a second interferometer (140) detects a phase shift and/or an intensity change of a received reference beam (117; 217).

Anmelder

Firmen

Imec VZW
Universiteit Gent

Land

🇧🇪 Belgien

Fachgebiete