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    • 9. 发明申请
    • PHOTOACOUSTIC DETECTOR
    • 光电探测器
    • WO2016179693A1
    • 2016-11-17
    • PCT/CA2016/050511
    • 2016-05-04
    • 9334-3275 QUEBEC INC.
    • VOINEA, Stefan
    • G01N7/00G01N29/14
    • G01N29/036G01N7/00G01N21/1702G01N29/222G01N29/2425G01N30/62G01N2021/1704
    • 21 ABSTRACT A photoacoustic detector for detecting a gas which includes a resonant cavity having an inner wall capable of absorbing electromagnetic radiation and a passageway for circulating the gas through the resonant cavity. The detector also includes an electromagnetic source for generating an electromagnetic energy and an optical window associated with the electromagnetic source for 5 introducing the electromagnetic energy into the resonant cavity towards the absorbing inner wall surface, thereby preventing the electromagnetic energy from radiating throughout the whole length of the resonant cavity. A pressure sensor is provided for detecting a pressure signal inside the resonant cavity which is representative of the gas being detected. A method is also provided for detecting a gas using the photoacoustic detector. 10
    • 21摘要一种用于检测气体的光声检测器,其包括具有能够吸收电磁辐射的内壁的谐振腔和用于使气体循环通过谐振腔的通道。 检测器还包括用于产生电磁能量的电磁源和与电磁源相关联的光学窗口,用于将电磁能量引入到吸收内壁表面的谐振腔中,从而防止电磁能量在整个长度内辐射 谐振腔。 提供压力传感器,用于检测谐振腔内的压力信号,其代表被检测的气体。 还提供了一种用于使用光声检测器检测气体的方法。 10
    • 10. 发明申请
    • DETERMINING THE PARTIAL PRESSURE OF A GAS, CALIBRATING A PRESSURE SENSOR
    • 确定气体的部分压力,校准压力传感器
    • WO2016113560A1
    • 2016-07-21
    • PCT/GB2016/050075
    • 2016-01-13
    • FATHOM SYSTEMS LIMITED
    • KERR, Gareth
    • G01N33/00G01N7/00A62B7/02
    • G01N33/0006A61G10/023A61G2203/34
    • There is disclosed a method and system for determining the partial pressure of at least one gas in a mixture of gasses contained in a pressure vessel, the mixture being pressurised to a level which is above local atmospheric pressure. The method comprises the steps of positioning a gas analysis sensor (14) within a pressure vessel (10); exposing the sensor to the mixture of gasses at the pressure level found in the pressure vessel; operating the sensor to measure the actual partial pressure of the at least one gas in the mixture contained in the vessel: and periodically calibrating the sensor by directing a calibrating gas mixture (20, 22) to the sensor in the chamber, the calibrating gas mixture being breathable by a human being.
    • 公开了一种用于确定包含在压力容器中的气体混合物中的至少一种气体的分压的方法和系统,该混合物被加压至高于局部大气压的水平。 该方法包括以下步骤:将气体分析传感器(14)定位在压力容器(10)内; 将传感器暴露在压力容器内存在的压力水平下的气体混合物中; 操作所述传感器以测量所述容器中包含的混合物中的所述至少一种气体的实际分压;以及通过将校准气体混合物(20,22)引导到所述室中的所述传感器来定期校准所述传感器,所述校准气体混合物 被人类透气。