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    • 7. 发明申请
    • Oxygen analyzer with enhanced calibration and blow-back
    • 氧气分析仪具有增强的校准和回吹
    • US20040182133A1
    • 2004-09-23
    • US10393378
    • 2003-03-20
    • Stephen J. StaphanosMarion A. Keyes
    • G01N037/00G01N033/00G01N001/34
    • G01N33/0006G01N27/4077G01N27/4175G01N2001/227
    • A combustion gas analyzer for measuring the concentration of a gas constituent in an exhaust gas stream is provided. The gas analyzer includes a sensor cell assembly coupled to a transmitter having electrical circuitry configured to provide an output of the concentration of the gas constituent as sensed by the sensor cell assembly. The combustion gas analyzer also includes a filter substantially enclosing the sensor cell assembly and a conduit coupled to the filter at a first end of the conduit and coupled to a valve assembly at a second end of the conduit. The conduit is used for supplying a calibration gas to the sensor cell assembly or for supplying a blow-back gas used to purge the filter.
    • 提供了一种用于测量废气流中的气体成分浓度的燃烧气体分析器。 气体分析器包括耦合到发射器的传感器单元组件,其具有电路,该电路被配置为提供由传感器单元组件感测的气体成分的浓度的输出。 燃烧气体分析器还包括基本上包围传感器单元组件的过滤器和在导管的第一端处耦合到过滤器的导管并且在导管的第二端处联接到阀组件。 导管用于向传感器组件提供校准气体或用于提供用于吹扫过滤器的回吹气体。