公开(公告)号：US20100140478A1

公开(公告)日：2010-06-10

申请号：US12520687

申请日：2007-12-21

Applicant: Andrew Colin Wilson ,  Sri Kumar Sandeep ,  Reece Wim Geursen

Inventor： Andrew Colin Wilson ,  Sri Kumar Sandeep ,  Reece Wim Geursen

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01J3/4338 ,  G01N21/031 ,  G01N21/39 ,  G01N2021/3148 ,  G01N2021/399 ,  G01N2201/0221 ,  G01N2201/0612 ,  G01N2201/06146 ,  G01N2201/0694 ,  G01N2201/1211 ,  G01N2201/1247

Abstract: A gas detector (10) that is arranged to sense the concentration levels of target gases oxygen, methane, carbon monox-ide, and hydrogen sulphide, within a gas sample from an environment surrounding the detector. The gas detector (10) comprises laser sources (12a-12d) that are arranged to transmit radiation through the gas sample at four target wavelengths that correspond approximately to the optimum absorption wavelengths of each of the target gases and an optical detector (16) that is arranged to sense the intensity of the radiation transmitted through the gas sample at each of the target wavelengths. A control system (22) generates representative concentration level information for the target gases based on the level of absorption of the radiation transmitted.

Abstract translation: 气体检测器（10），其布置成感测来自环境中的环境中的气体样品中的目标气体氧气，甲烷，一氧化碳和硫化氢的浓度水平。 气体检测器（10）包括激光源（12a-12d），其被布置成以四个目标波长透射通过气体样品的辐射，其大致对应于每个目标气体的最佳吸收波长;以及光学检测器（16）， 布置成感测在每个目标波长处透射通过气体样品的辐射的强度。 控制系统（22）基于所发射的辐射的吸收水平产生目标气体的代表性浓度水平信息。

公开(公告)号：US07999232B2

公开(公告)日：2011-08-16

申请号：US12520687

申请日：2007-12-21

Applicant: Andrew Colin Wilson ,  Sri Kumar Sandeep ,  Reece Wim Geursen

Inventor： Andrew Colin Wilson ,  Sri Kumar Sandeep ,  Reece Wim Geursen

IPC: G01N21/35

CPC classification number: G01N21/3504 ,  G01J3/4338 ,  G01N21/031 ,  G01N21/39 ,  G01N2021/3148 ,  G01N2021/399 ,  G01N2201/0221 ,  G01N2201/0612 ,  G01N2201/06146 ,  G01N2201/0694 ,  G01N2201/1211 ,  G01N2201/1247

Abstract: A gas detector (10) that is arranged to sense the concentration levels of target gases oxygen, methane, carbon monoxide, and hydrogen sulphide, within a gas sample from an environment surrounding the detector. The gas detector (10) comprises laser sources (12a-12d) that are arranged to transmit radiation through the gas sample at four target wavelengths that correspond approximately to the optimum absorption wavelengths of each of the target gases and an optical detector (16) that is arranged to sense the intensity of the radiation transmitted through the gas sample at each of the target wavelengths. A control system (22) generates representative concentration level information for the target gases based on the level of absorption of the radiation transmitted.

Abstract translation: 一种气体检测器（10），其被布置成感测来自环境周围环境的气体样品中的目标气体氧气，甲烷，一氧化碳和硫化氢的浓度水平。 气体检测器（10）包括激光源（12a-12d），其被布置成以四个目标波长透射通过气体样品的辐射，其大致对应于每个目标气体的最佳吸收波长;以及光学检测器（16）， 布置成感测在每个目标波长处透射通过气体样品的辐射的强度。 控制系统（22）基于所发射的辐射的吸收水平产生目标气体的代表性浓度水平信息。