公开(公告)号：EP4414691A2

公开(公告)日：2024-08-14

申请号：EP24176919.9

申请日：2020-01-11

Applicant: Indrio Technologies, Inc.

Inventor： SUR, Ritobrata

IPC: G01N21/85

CPC classification number: G01N2021/15820130101 ,  G01N2021/858520130101 ,  G01N2021/852120130101 ,  G01N21/8507 ,  G01N2201/08420130101 ,  G01N21/031 ,  G01N2021/39920130101 ,  G01N21/39 ,  G01N21/0332

Abstract: A laser absorption spectroscopy exhaust gas sensor including an optical cell, mirrors within the optical cell positioned to support a multi-pass optical path within the optical cell, wherein the multi-pass optical path reflects from the mirrors at beam spots on the mirrors, where some of the beam spots away from the inlet and outlet overlap significantly with each other, a laser adapted to generate a laser beam, an optical detector adapted to detect a returning laser beam, and a processor for controlling the laser and for analyzing signals from the optical detector to identify a gas in the optical cell.

公开(公告)号：EP4382893A1

公开(公告)日：2024-06-12

申请号：EP23213545.9

申请日：2023-11-30

Applicant: Baker Hughes Holdings LLC

Inventor： PRCHLIK, Jakub ,  MCKINNEY, Kevin ,  SPALDING, Michael ,  LAMBACH, Kenneth ,  SUNG, Chih-Jen ,  STEVENS, James ,  FANG, Rouzhou ,  TWAROG, Kyle

IPC: G01N21/72 ,  F23N5/08 ,  G01J3/443

CPC classification number: G01N21/72 ,  G01J3/443 ,  G01N2201/129320130101 ,  G01N2201/08420130101 ,  G01N2201/12720130101

Abstract: A system (100) and method (400) for characterizing spectral emission include receiving data characterizing spectral emission from a flame (410), wherein the data includes a range of wavelengths and a corresponding range of intensities, determining one or more functions (420) to analyze the data, determining (430), based on the one or more functions, a peak subset of the data and determining (440), based on the peak subset, one or more parameters of interest.

公开(公告)号：EP2769205B1

公开(公告)日：2024-08-14

申请号：EP12783739.1

申请日：2012-10-10

IPC: G01N21/85 ,  G01N21/33

CPC classification number: G01N21/33 ,  G01N2201/06220130101 ,  G01N2201/08420130101

公开(公告)号：EP3911938B1

公开(公告)日：2024-05-29

申请号：EP20741161.2

申请日：2020-01-11

IPC: G01N21/31 ,  G01J3/44 ,  G01N21/39 ,  G01N21/85 ,  G01N21/03 ,  G01N21/15

CPC classification number: G01N2021/15820130101 ,  G01N2021/858520130101 ,  G01N2021/852120130101 ,  G01N21/8507 ,  G01N2201/08420130101 ,  G01N21/031 ,  G01N2021/39920130101 ,  G01N21/39 ,  G01N21/0332