公开(公告)号：US09335257B2

公开(公告)日：2016-05-10

申请号：US14307995

申请日：2014-06-18

Applicant: Rosemount Analytical Inc.

Inventor： Pawel Kluczynski

IPC: G01N21/00 ,  G01N21/27 ,  G01J3/42 ,  G01N21/39 ,  G01J3/433

CPC classification number: G01N21/27 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/42 ,  G01J3/433 ,  G01J3/4338 ,  G01J2003/423 ,  G01N21/39

Abstract: A gas absorption spectroscopy system and method are provided. A sealed chamber is provided with a reference gas having a known moisture concentration. An illumination source is disposed in the sealed chamber and is configured to generate an illumination beam. A measurement cell is coupled to the sealed chamber and is configured for exposure to a gas sample such that illumination travelling through the measurement cell passes through the gas sample. A process window is disposed between the sealed chamber and the measurement cell. The process window is configured to receive the illumination beam from the illumination source and reflect a first portion of illumination while allowing a second portion of illumination to pass into the measurement cell. A reference detector is disposed to receive the first portion of illumination and provide a reference detector signal. A measurement detector is disposed to receive the second portion of illumination after the second portion of illumination has passed through the measurement cell and provide a measurement detector signal. A controller is coupled to the reference detector and the measurement detector and is configured to provide a compensated moisture output based on the reference detector signal and the measurement detector signal.

Abstract translation: 提供了一种气体吸收光谱系统和方法。 密封室设置有具有已知水分浓度的参考气体。 照明源设置在密封室中并且被配置为产生照明光束。 测量单元耦合到密封室，并且被配置为暴露于气体样品，使得穿过测量单元的照明通过气体样品。 处理窗口设置在密封室和测量单元之间。 处理窗口被配置为从照明源接收照明光束并且反射照明的第一部分，同时允许第二部分照射进入测量单元。 设置参考检测器以接收照明的第一部分并提供参考检测器信号。 设置测量检测器以在第二部分照射已经通过测量单元之后接收第二部分照明并提供测量检测器信号。 控制器耦合到参考检测器和测量检测器，并且被配置为基于参考检测器信号和测量检测器信号来提供经补偿的湿度输出。

公开(公告)号：US20140375995A1

公开(公告)日：2014-12-25

申请号：US14307995

申请日：2014-06-18

Applicant: Rosemount Analytical Inc.

Inventor： Pawel Kluczynski

IPC: G01N21/27

CPC classification number: G01N21/27 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/42 ,  G01J3/433 ,  G01J3/4338 ,  G01J2003/423 ,  G01N21/39

Abstract: A gas absorption spectroscopy system and method are provided. A sealed chamber is provided with a reference gas having a known moisture concentration. An illumination source is disposed in the sealed chamber and is configured to generate an illumination beam. A measurement cell is coupled to the sealed chamber and is configured for exposure to a gas sample such that illumination travelling through the measurement cell passes through the gas sample. A process window is disposed between the sealed chamber and the measurement cell. The process window is configured to receive the illumination beam from the illumination source and reflect a first portion of illumination while allowing a second portion of illumination to pass into the measurement cell. A reference detector is disposed to receive the first portion of illumination and provide a reference detector signal. A measurement detector is disposed to receive the second portion of illumination after the second portion of illumination has passed through the measurement cell and provide a measurement detector signal. A controller is coupled to the reference detector and the measurement detector and is configured to provide a compensated moisture output based on the reference detector signal and the measurement detector signal.

Abstract translation: 提供了一种气体吸收光谱系统和方法。 密封室设置有具有已知水分浓度的参考气体。 照明源设置在密封室中并且被配置为产生照明光束。 测量单元耦合到密封室并且被配置为暴露于气体样本，使得穿过测量单元的照明通过气体样本。 处理窗口设置在密封室和测量单元之间。 处理窗口被配置为从照明源接收照明光束并且反射照明的第一部分，同时允许第二部分照射进入测量单元。 设置参考检测器以接收照明的第一部分并提供参考检测器信号。 设置测量检测器以在第二部分照射已经通过测量单元之后接收第二部分照明并提供测量检测器信号。 控制器耦合到参考检测器和测量检测器，并且被配置为基于参考检测器信号和测量检测器信号来提供经补偿的湿度输出。