公开(公告)号：KR20180030989A

公开(公告)日：2018-03-27

申请号：KR20187002698

申请日：2016-07-27

Applicant: GAS MEASUREMENT INSTRUMENTS LTD

Inventor： MASSIE CRAWFORD ,  MATHIESON FRASER ,  GLENDINNING ANDREW

IPC: G01N21/3504 ,  G01N21/31

CPC classification number: G01N21/3504 ,  G01J1/1626 ,  G01J2001/161 ,  G01N21/314 ,  G01N2021/3166 ,  G01N2201/1215

Abstract: 본발명은, 예를들어천연가스를함유하는샘플내의메탄과같은제1 가스의존재를확인하는방법에관한것이다. 제1 파장에반응하는센서, 제2 파장에반응하는센서및 참조판독치를수집하기위한센서를갖는검출기가제공된다. 가스샘플을분석하여, 상기제1 파장에상응하는제1 흡수판독치, 상기제2 파장에상응하는제2 흡수판독치및 참조판독치를얻는다. 상기제1 흡수판독치및 상기참조판독치를사용하여제1 흡수수치를계산하고, 상기제2 흡수판독치및 상기참조판독치를사용하여제2 흡수수치를계산한다. 상기제1 및제2 흡수수치각각에선형화기함수를적용하여제1 및제2 농도수치를계산한다. 각각의파장에대한센서를상기제1 가스의검출에대해교정하여, 오직상기제1 가스가샘플중에존재하는경우각각의파장에서수집된데이터가동일한판독치를제공하도록한다. 이어서, 상기제2 농도수치에대한상기제1 농도수치의비를계산하고, 상기비를사용하여오직상기제1 가스가상기샘플중에존재하는지확인한다.

Abstract translation: 本发明涉及一种用于识别含有天然气的样品中第一气体（例如甲烷）的存在的方法。 提供了一种检测器，其具有响应于第一波长的传感器，响应于第二波长的传感器以及用于收集参考读数的传感器。 分析气体样本以获得对应于第一波长的第一吸收读数，对应于第二波长的第二吸收读数和参考读数。 使用第一和第二参考读数计算第一吸收值，并且使用第二和第三参考读数计算第二吸收值。 线性化函数被应用于第一和第二吸收值中的每一个以计算第一和第二浓度值。 对每个波长的传感器进行校准以检测第一气体，使得仅在样品中存在第一气体时，在每个波长处收集的数据才提供相同的读数。 接下来，计算第一浓度值与第二浓度值的比率，并且该比率用于确认样品中仅存在第一气体。

公开(公告)号：AU2016300166A1

公开(公告)日：2018-03-22

申请号：AU2016300166

申请日：2016-07-27

Applicant: GAS MEASUREMENT INSTRUMENTS LTD

Inventor： MASSIE CRAWFORD ,  MATHIESON FRASER ,  GLENDINNING ANDREW

IPC: G01N21/3504 ,  G01J1/16 ,  G01N21/31

Abstract: A method of identifying the presence of a first gas such as methane within a sample, for example containing natural gas. A detector is provided having a sensor responsive to a first wavelength, a sensor responsive to a second wavelength, and a sensor for collecting reference readings. A gas sample is analysed to obtain a first absorption reading corresponding to the first wavelength, a second absorption reading corresponding to the second wavelength and a reference reading. A first absorption figure is calculated using the first absorption reading and the reference reading, and a second absorption figure using the second absorption reading and the reference reading. A lineariser function is applied to each of the first and second absorption figures to calculate first and second concentration figures. The sensor for each wavelength is calibrated for detecting the first gas such that the data collected at each wavelength gives the same reading when only said first gas is present in a sample. The ratio of the first concentration figure to the second concentration figure is then calculated, and the ratio used to identify whether only the first gas is present in the sample.

公开(公告)号：AU2016300166B2

公开(公告)日：2019-05-09

申请号：AU2016300166

申请日：2016-07-27

Applicant: TELEDYNE GAS MEASUREMENT INSTRUMENTS LTD

Inventor： MASSIE CRAWFORD ,  MATHIESON FRASER ,  GLENDINNING ANDREW

IPC: G01N21/3504 ,  G01J1/16 ,  G01N21/31

Abstract: A method of identifying the presence of a first gas such as methane within a sample, for example containing natural gas. A detector is provided having a sensor responsive to a first wavelength, a sensor responsive to a second wavelength, and a sensor for collecting reference readings. A gas sample is analysed to obtain a first absorption reading corresponding to the first wavelength, a second absorption reading corresponding to the second wavelength and a reference reading. A first absorption figure is calculated using the first absorption reading and the reference reading, and a second absorption figure using the second absorption reading and the reference reading. A lineariser function is applied to each of the first and second absorption figures to calculate first and second concentration figures. The sensor for each wavelength is calibrated for detecting the first gas such that the data collected at each wavelength gives the same reading when only said first gas is present in a sample. The ratio of the first concentration figure to the second concentration figure is then calculated, and the ratio used to identify whether only the first gas is present in the sample.

公开(公告)号：CA2991299A1

公开(公告)日：2017-02-02

申请号：CA2991299

申请日：2016-07-27

Applicant: GAS MEASUREMENT INSTRUMENTS LTD

Inventor： MASSIE CRAWFORD ,  MATHIESON FRASER ,  GLENDINNING ANDREW

IPC: G01N21/3504 ,  G01J1/16 ,  G01N21/31

Abstract: A method of identifying the presence of a first gas such as methane within a sample, for example containing natural gas. A detector is provided having a sensor responsive to a first wavelength, a sensor responsive to a second wavelength, and a sensor for collecting reference readings. A gas sample is analysed to obtain a first absorption reading corresponding to the first wavelength, a second absorption reading corresponding to the second wavelength and a reference reading. A first absorption figure is calculated using the first absorption reading and the reference reading, and a second absorption figure using the second absorption reading and the reference reading. A lineariser function is applied to each of the first and second absorption figures to calculate first and second concentration figures. The sensor for each wavelength is calibrated for detecting the first gas such that the data collected at each wavelength gives the same reading when only said first gas is present in a sample. The ratio of the first concentration figure to the second concentration figure is then calculated, and the ratio used to identify whether only the first gas is present in the sample.