公开(公告)号：US20180172554A1

公开(公告)日：2018-06-21

申请号：US15831801

申请日：2017-12-05

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Samhitha PALANGANDA POONACHA ,  Anish BEKAL ,  Rachit SHARMA ,  Chayan MITRA ,  Eric YuHang FUNG

IPC: G01M15/10 ,  G01N21/31

CPC classification number: G01M15/108 ,  G01J3/00 ,  G01J3/021 ,  G01J3/42 ,  G01J5/0014 ,  G01J5/602 ,  G01J2005/0081 ,  G01N21/31 ,  G01N2201/066

Abstract: A method for determining a multi-dimensional profile of at least one emission parameter corresponding to an exhaust emission of a combustion process is presented. The method includes emitting a laser beam in a plurality of directions through the exhaust emission. The laser beam includes a plurality of wavelengths and the exhaust emission is characterized by the plurality of emission parameters. The method further includes detecting a plurality of absorption spectrum signals for each of the plurality of directions and determining a plurality of single-dimensional profiles corresponding to the at least one emission parameter. Each of the plurality of single-dimensional profiles is determined based on the plurality of absorption spectrum signals corresponding to each respective direction of the plurality of directions. The method also includes generating the multi-dimensional profile corresponding to the at least one emission parameter based on the plurality of single-dimensional profiles.

公开(公告)号：US20160061721A1

公开(公告)日：2016-03-03

申请号：US14837052

申请日：2015-08-27

Applicant: General Electric Company

Inventor： Samhitha PALANGANDA POONACHA ,  Sandip MAITY ,  Nagapriya KAVOORI SETHUMADHAVAN

IPC: G01N21/39

CPC classification number: G01N21/39 ,  G01J3/4338 ,  G01N21/031 ,  G01N21/314 ,  G01N21/3504 ,  G01N2021/399 ,  G01N2201/06113

Abstract: A method implemented on a processor includes emitting a light beam from a light source to a component in an absorption cell, wherein the light beam comprises a plurality of wavelength beams. The method further includes generating a plurality of response signals due to the presence of the component, corresponding to the plurality of wavelength beams of the light beam. The method also includes detecting the plurality of response signals by a photo detector coupled to the absorption cell. The method includes determining a concentration of the component based on the plurality of response signals.

Abstract translation: 在处理器上实现的方法包括将光束从光源发射到吸收单元中的部件，其中光束包括多个波长束。 该方法还包括由于存在与光束的多个波长束对应的分量的存在而产生多个响应信号。 该方法还包括通过耦合到吸收单元的光电检测器来检测多个响应信号。 该方法包括基于多个响应信号确定分量的浓度。