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    METHOD AND APPARATUS FOR MONITORING A LEVEL OF A GASEOUS SPECIES OF INTEREST
    1.
    发明授权
    METHOD AND APPARATUS FOR MONITORING A LEVEL OF A GASEOUS SPECIES OF INTEREST 有权

    公开(公告)号：EP2946195B1

    公开(公告)日：2018-11-21

    申请号：EP14704662.7

    申请日：2014-01-14

    申请人： Koninklijke Philips N.V.

    发明人： JIANG, Zhi-Xing ,  PIERRY, Anthony

    IPC分类号： G01N21/27 ,  G01N21/31 ,  G01N21/3504 ,  G01N21/359 ,  A61B5/08 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01N33/497 ,  G01N21/85 ,  A61B5/05 ,  A61M16/10

    CPC分类号： G01N21/3151 ,  A61B5/0507 ,  A61B5/082 ,  A61M2016/102 ,  A61M2016/103 ,  A61M2205/3313 ,  G01J3/108 ,  G01J3/28 ,  G01J3/42 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/359 ,  G01N33/497 ,  G01N2021/3181 ,  G01N2021/8578 ,  G01N2201/0612 ,  G01N2201/062

    摘要： Gas measurement detectector configured to monitor a level of a gaseous molecular species within a flow path (18) of a flow of breathable gas that communicates with an airway of a subject is performed by infrared spectroscopy. Rather than using an individual source (20) to generate electromagnetic radiation at reference and measurement wavelengths, a near-infrared electromagnetic radiation source (22) is used to generate reference electromagnetic radiation. The detector comprising: a first source (20) configured to emit mid-infrared electromagnetic radiation; a second source (22) configured to emit near-infrared electromagnetic radiation; source optics (24) configured to combine mid-infrared and near-infrared electromagnetic radiation emitted by the first and second source into a coaxial beam, and to direct the coaxial beam across the flow path (18); sensor optics (38) configured to receive electromagnetic radiation in the coaxial beam that has traversed the flow path (18), and to divide the received electromagnetic radiation into first radiation that includes mid-infrared electromagnetic radiation and second radiation that includes near-infrared electromagnetic radiation; a first radiation sensor (40) configured to receive the first radiation, and to generate output signals conveying information related to a parameter of the mid-infrared electromagnetic radiation in the first radiation; a second radiation sensor (42) configured to receive the second radiation, and to generate output signals conveying information related to a parameter of the near-infrared electromagnetic radiation in the second radiation; and a processor (36) configured to determine a level of a gaseous molecular species within the flow of breathable gas in the flow path based on the output signals generated by the first radiation sensor (40) and the second radiation sensor (42) such that the output signals generated by the second radiation sensor (42) are implemented to compensate optical loss through the flow path. Preferably fluctuations in irradiance of the source (20) generating the electromagnetic radiation at the measurement wavelength is compensated for based on a measurement of resistance through the source (20).

    APPARATUS AND METHOD FOR CONTROLLING RADIATION SOURCE VARIABILITY FOR OPTICAL GAS MEASUREMENT SYSTEMS
    4.
    发明公开
    APPARATUS AND METHOD FOR CONTROLLING RADIATION SOURCE VARIABILITY FOR OPTICAL GAS MEASUREMENT SYSTEMS 审中-公开
    设备及其控制方法辐射源变异性光学气体测量系统

    公开(公告)号：EP2702391A1

    公开(公告)日：2014-03-05

    申请号：EP12718377.0

    申请日：2012-04-04

    申请人： Koninklijke Philips N.V.

    发明人： JIANG, Zhi-Xing ,  PIERRY, Anthony

    IPC分类号： G01N21/27 ,  G01N21/35 ,  G01N3/10

    摘要： An infrared detector includes a radiation source configured to emit electromagnetic radiation. The detector includes a source monitoring apparatus configured to generate output signals (62) related to electrical resistance through the radiation source. The output signals are used to account for radiation source temperature in measurements by the detector. The output signals may be used (72) in the provision of power to the radiation source to maintain the temperature of the detector at a beneficial level. The detector is configured to monitor a level of a gaseous molecular species within a flow of breathable gas.

    METHOD AND APPARATUS FOR MONITORING A LEVEL OF A GASEOUS SPECIES OF INTEREST
    7.
    发明公开
    METHOD AND APPARATUS FOR MONITORING A LEVEL OF A GASEOUS SPECIES OF INTEREST 审中-公开
    方法和仪器监测关心的气态物质的水平

    公开(公告)号：EP2946195A1

    公开(公告)日：2015-11-25

    申请号：EP14704662.7

    申请日：2014-01-14

    申请人： Koninklijke Philips N.V.

    发明人： JIANG, Zhi-Xing ,  PIERRY, Anthony

    IPC分类号： G01N21/35 ,  G01N21/31 ,  G01N21/27 ,  A61B5/08 ,  G01N33/497 ,  G01J3/10 ,  G01N33/00

    CPC分类号： G01N21/3151 ,  A61B5/0507 ,  A61B5/082 ,  A61M2016/102 ,  A61M2016/103 ,  A61M2205/3313 ,  G01J3/108 ,  G01J3/28 ,  G01J3/42 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/359 ,  G01N33/497 ,  G01N2021/3181 ,  G01N2021/8578 ,  G01N2201/0612 ,  G01N2201/062

    摘要： Gas measurement detectector configured to monitor a level of a gaseous molecular species within a flow path (18) of a flow of breathable gas that communicates with an airway of a subject is performed by infrared spectroscopy. Rather than using an individual source (20) to generate electromagnetic radiation at reference and measurement wavelengths, a near-infrared electromagnetic radiation source (22) is used to generate reference electromagnetic radiation. The detector comprising: a first source (20) configured to emit mid-infrared electromagnetic radiation; a second source (22) configured to emit near-infrared electromagnetic radiation; source optics (24) configured to combine mid-infrared and near-infrared electromagnetic radiation emitted by the first and second source into a coaxial beam, and to direct the coaxial beam across the flow path (18); sensor optics (38) configured to receive electromagnetic radiation in the coaxial beam that has traversed the flow path (18), and to divide the received electromagnetic radiation into first radiation that includes mid-infrared electromagnetic radiation and second radiation that includes near-infrared electromagnetic radiation; a first radiation sensor (40) configured to receive the first radiation, and to generate output signals conveying information related to a parameter of the mid-infrared electromagnetic radiation in the first radiation; a second radiation sensor (42) configured to receive the second radiation, and to generate output signals conveying information related to a parameter of the near-infrared electromagnetic radiation in the second radiation; and a processor (36) configured to determine a level of a gaseous molecular species within the flow of breathable gas in the flow path based on the output signals generated by the first radiation sensor (40) and the second radiation sensor (42) such that the output signals generated by the second radiation sensor (42) are implemented to compensate optical loss through the flow path. Preferably fluctuations in irradiance of the source (20) generating the electromagnetic radiation at the measurement wavelength is compensated for based on a measurement of resistance through the source (20).

    摘要翻译： 配置成监测呼吸气体流动的流路（18）内的气体分子种类的水平气体测量detectector做了与对对象的气道连通的通过红外光谱法进行。 而不是使用单独的源（20），以产生在参考和测量波长的电磁辐射，近红外电磁辐射源（22）被用于产生参考的电磁辐射。 该检测器包括：被配置为发射中红外电磁辐射的第一源极（20）; 被配置为发射近红外电磁辐射的第二源（22）; 源光学器件（24），配置为组合中红外和由第一和第二源发射到同轴光束的近红外电磁辐射，并且引导穿过所述流路（18）同轴光束; 配置成接收电磁辐射在同轴光束传感器光学器件（38）没有经过的流动路径（18），并且将所接收的电磁辐射分为第一辐射确实包括中红外电磁辐射和第二辐射没有包括的近红外电磁 辐射; 配置成接收所述第一辐射，并产生输出信号传达与在第一辐射中红外电磁辐射的参数信息的第一辐射传感器（40）; 配置成接收所述第二辐射，并产生输出信号传达与在第二辐射的近红外电磁辐射的参数信息的第二辐射传感器（42）; 和基于由所述第一辐射传感器（40）和第二辐射传感器（42）产生的输出信号可呼吸气体的流路的流内的气体分子种类的水平检查被配置为确定矿的处理器（36）做 由第二辐射传感器（42）产生的输出信号被实现通过所述流动路径，以补偿光损耗。优选地波动产生在测量波长处的电磁辐射的源（20）的辐照度被补偿基于电阻的测量 通过源极（20）。