公开(公告)号：EP3479098A1

公开(公告)日：2019-05-08

申请号：EP17737958.3

申请日：2017-06-27

Applicant: General Electric Company

Inventor： MAITY, Sandip ,  KAVOORI SETHUMADHAVAN, Nagapriya ,  GHOSH, Sampa ,  MUKHERJEE, Moitrayee

IPC: G01N21/31 ,  E21B49/08 ,  G01N33/28 ,  G01N21/3577 ,  G01N21/552 ,  G01N21/359 ,  G01N21/85 ,  G01J3/427

公开(公告)号：EP2761273B1

公开(公告)日：2018-01-31

申请号：EP12836873.5

申请日：2012-09-28

Applicant: General Electric Company

Inventor： YAMADA, Masako ,  MAITY, Sandip ,  VARTAK, Sameer, Dinkar ,  LANGOJU, Rajesh ,  PATIL, Abhijit

IPC: G01N21/25 ,  G01N21/45 ,  G01N21/55 ,  G01N33/53 ,  G01J3/28 ,  G01N21/552

CPC classification number: G01J3/2823 ,  G01N21/253 ,  G01N21/45 ,  G01N21/55 ,  G01N21/553 ,  G01N21/554

Abstract: A system for detecting an array of samples having detectable samples and at least one reference sample is provided. The system comprises an electromagnetic radiation source, a sensing surface comprising a plurality of sample fields, wherein the plurality of sample fields comprise at least one reference field, a phase difference generator configured to introduce differences in pathlengths of one or more samples in the array of samples, and an imaging spectrometer configured to image one or more samples in the array of samples.

公开(公告)号：EP3040707A1

公开(公告)日：2016-07-06

申请号：EP15200356.2

申请日：2015-12-16

Applicant: General Electric Company

Inventor： KAVOORI SETHUMADHAVAN, Nagapriya ,  MAITY, Sandip ,  PALANGANDA POONACHA, Samhittha ,  MUKHERHJEE, Moitrayee ,  HALDER, Purbasha ,  SASIKUMAR, Harish ,  PANDEY, Prasenjit

IPC: G01N21/39 ,  G01J3/433

CPC classification number: G01N21/31 ,  G01J3/433 ,  G01N21/03 ,  G01N21/3504 ,  G01N21/39 ,  G01N2201/061

Abstract: A method for determining a concentration of at least one individual gas present in a gas-mixture (102) includes irradiating a first component (116) by incident modulated-light-beams (108,109) characterized by a determined absorption wavelength range, modulation frequencies and a modulation amplitudes to generate first transmitted-light-beams (118,119), irradiating a second component (117), comprising a determined concentration of the at least one individual gas, by the first incident modulated-light-beams (108,109) to generate second transmitted-light-beams (121,123), generating noise signals (122,124) representative of a characteristic of the first transmitted-light-beams (118,119), generating noise-free signals (125,127) representative of a characteristic of the second transmitted-light-beams (121,123), selecting an optimal modulation frequency and an optimal modulation amplitude from the modulation frequencies and the modulation amplitudes based on the noise signals (122,124) and the noise-free signals (125,127), and determining a concentration of the at least one individual gas in the gas-mixture (102) based on the optimal modulation frequency and the optimal modulation amplitude of the determined absorption wavelength range.

Abstract translation: 确定气体混合物（102）中存在的至少一种单独气体的浓度的方法包括通过入射的调制光束（108,109）照射第一分量（116），特征在于确定的吸收波长范围，调制频率和 调制幅度以产生第一透射光束（118,119），通过第一入射调制光束（108,109）照射包括所确定的至少一种单独气体的浓度的第二分量（117），以产生第二透射光束 产生表示第一透射光束（118,119）的特性的噪声信号（122,124），产生表示第二透射光束（118,119）的特性的无噪声信号（125,127） （121,123），根据噪声信号（122,124）和第th个调制频率和调制幅度选择最佳调制频率和最佳调制幅度 基于所确定的吸收波长范围的最佳调制频率和最佳调制幅度，确定气体混合物（102）中的至少一种单独气体的浓度。

公开(公告)号：EP2990780A1

公开(公告)日：2016-03-02

申请号：EP15182202.0

申请日：2015-08-24

Applicant: General Electric Company

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

IPC: G01N21/39 ,  G01J3/433 ,  G01N21/3504 ,  G01N21/03 ,  G01N21/31

Abstract: A method implemented on a processor (126) includes emitting a light beam from a light source (106) to a component (104) in an absorption cell (102), wherein the light beam comprises a plurality of wavelength beams (118,120). The method further includes generating a plurality of response signals (122,124) due to the presence of the component (104), corresponding to the plurality of wavelength beams (118,120) of the light beam. The method also includes detecting the plurality of response signals (122,124) by a photo detector (108) coupled to the absorption cell (102). The method includes determining a concentration of the component (104) based on the plurality of response signals (122,124).

Abstract translation: 在处理器（126）上实现的方法包括将光束从光源（106）发射到吸收单元（102）中的部件（104），其中光束包括多个波长光束（118,120）。 该方法还包括由于存在与光束的多个波长光束（118,120）相对应的分量（104）而产生多个响应信号（122,124）。 该方法还包括通过耦合到吸收单元（102）的光电检测器（108）来检测多个响应信号（122,124）。 该方法包括基于多个响应信号（122,124）来确定分量（104）的浓度。