Gas chromatograph with improved operation
    42.
    发明授权
    Gas chromatograph with improved operation 有权
    气相色谱仪操作改进

    公开(公告)号:US09400266B2

    公开(公告)日:2016-07-26

    申请号:US13826610

    申请日:2013-03-14

    CPC classification number: G01N30/28 G01N30/8665 G01N30/88 G01N2030/8804

    Abstract: A gas chromatograph includes a sample inlet configured to receive a sample of interest and a carrier gas inlet configured to receive a carrier gas. A plurality of fluid flow valves are operably coupled to the sample inlet and the carrier gas inlet. A detector is operably coupled to the plurality of fluid flow valves and is configured to provide an analytic indication relative to the sample of interest. A controller is operably coupled to the plurality of fluid flow valves and is coupled to memory storing user-configurable information that is accessed by the controller to affect operation of the gas chromatograph.

    Abstract translation: 气相色谱仪包括被配置为接收感兴趣样品的样品入口和构造成接收载气的载气入口。 多个流体流动阀可操作地耦合到样品入口和载气入口。 检测器可操作地联接到多个流体流动阀,并且被配置为提供相对于感兴趣的样品的分析指示。 控制器可操作地耦合到多个流体流量阀并被耦合到存储用户可配置信息的存储器,该信息由控制器访问以影响气相色谱仪的操作。

    Tunable diode laser absorption spectroscopy with water vapor determination
    43.
    发明授权
    Tunable diode laser absorption spectroscopy with water vapor determination 有权
    可调谐二极管激光吸收光谱与水汽测定

    公开(公告)号:US09335257B2

    公开(公告)日:2016-05-10

    申请号:US14307995

    申请日:2014-06-18

    Inventor: Pawel Kluczynski

    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。

    SOLID STATE GAS DETECTION SENSOR DIAGNOSTIC
    45.
    发明申请
    SOLID STATE GAS DETECTION SENSOR DIAGNOSTIC 有权
    固态气体检测传感器诊断

    公开(公告)号:US20150233880A1

    公开(公告)日:2015-08-20

    申请号:US14621706

    申请日:2015-02-13

    CPC classification number: G01N33/007 G01N27/12 G01N33/0006

    Abstract: A metal oxide semiconductor-based toxic gas detector is provided. The metal oxide semiconductor-based detector includes a metal oxide semiconductor-based gas sensor that has an electrical characteristic that varies with concentration of a toxic gas. Measurement circuitry is coupled to the metal oxide semiconductor-based gas sensor and is configured to measure the electrical characteristic and provide a digital indication of the measured electrical characteristic. A controller is coupled to the measurement circuitry and is configured to provide a toxic gas output based on the digital indication. The controller is also configured to provide a diagnostic output relative to the metal oxide semiconductor-based sensor based on fluctuations of the measured electrical characteristic over time.

    Abstract translation: 提供了一种基于金属氧化物半导体的有毒气体检测器。 基于金属氧化物半导体的检测器包括具有随着有毒气体浓度而变化的电特性的基于金属氧化物半导体的气体传感器。 测量电路耦合到基于金属氧化物半导体的气体传感器,并且被配置为测量电特性并提供所测量的电特性的数字指示。 控制器耦合到测量电路并且被配置为基于数字指示提供有毒气体输出。 控制器还被配置为基于随时间推移的测量的电特性的波动来提供相对于基于金属氧化物半导体的传感器的诊断输出。

    GAS DETECTION SYSTEM WITH MOISTURE REMOVAL
    46.
    发明申请
    GAS DETECTION SYSTEM WITH MOISTURE REMOVAL 审中-公开
    气体去除检测系统

    公开(公告)号:US20140182358A1

    公开(公告)日:2014-07-03

    申请号:US14140792

    申请日:2013-12-26

    CPC classification number: G01N1/4022 G01N1/22 G01N33/0011 G01N2001/2261

    Abstract: A gas detection system is provided. The system includes a sample gas inlet configured to receive a sample of gas and a sample chamber operably coupled to the sample gas inlet. The sample chamber has at least one gas sensor disposed therein. The gas sensor provides a gas sensor output indicative of a species of interest in the sample of gas. A controller is coupled to the at least one gas sensor and is configured to provide information related to the species of interest based on the gas sensor output. A moisture removal device is disposed to receive the sample of gas and remove moisture from the sample before the sample reaches the at least one gas sensor.

    Abstract translation: 提供气体检测系统。 该系统包括被配置为接收气体样本的样品气体入口和可操作地耦合到样品气体入口的样品室。 样品室具有设置在其中的至少一个气体传感器。 气体传感器提供指示气体样品中感兴趣的物种的气体传感器输出。 控制器耦合到至少一个气体传感器,并且被配置为基于气体传感器输出提供与感兴趣物种相关的信息。 设置除湿装置以在样品到达至少一个气体传感器之前接收气体样品并从样品中除去水分。

    LOW-CONDUCTIVITY CONTACTING-TYPE CONDUCTIVITY MEASUREMENT
    47.
    发明申请
    LOW-CONDUCTIVITY CONTACTING-TYPE CONDUCTIVITY MEASUREMENT 有权
    低电导率接触型电导率测量

    公开(公告)号:US20130187673A1

    公开(公告)日:2013-07-25

    申请号:US13743811

    申请日:2013-01-17

    CPC classification number: G01N27/06

    Abstract: A method of measuring low conductivity of a liquid sample using a contacting-type conductivity sensor is provided. The method includes applying a first excitation current to a contacting-type conductivity sensor at a first drive frequency. A first voltage response to the first excitation current is determined. A second excitation current is applied to the contacting-type conductivity sensor at a second drive frequency higher than the first drive frequency. A second voltage response to the second excitation current is determined. A conductivity output is provided based, at least in part, on the first and second voltage responses. A system for measuring conductivity of a liquid at or below 100 μS/cm is also provided.

    Abstract translation: 提供了使用接触型电导率传感器测量液体样品的低电导率的方法。 该方法包括以第一驱动频率向接触型电导率传感器施加第一激励电流。 确定对第一激励电流的第一电压响应。 第二激励电流以比第一驱动频率高的第二驱动频率施加到接触型电导率传感器。 确定对第二激励电流的第二电压响应。 至少部分地基于第一和第二电压响应来提供电导率输出。 还提供了用于测量或低于100μS/ cm的液体的电导率的系统。

    Solid state gas detection sensor diagnostic

    公开(公告)号:US09709544B2

    公开(公告)日:2017-07-18

    申请号:US14621706

    申请日:2015-02-13

    CPC classification number: G01N33/007 G01N27/12 G01N33/0006

    Abstract: A metal oxide semiconductor-based toxic gas detector is provided. The metal oxide semiconductor-based detector includes a metal oxide semiconductor-based gas sensor that has an electrical characteristic that varies with concentration of a toxic gas. Measurement circuitry is coupled to the metal oxide semiconductor-based gas sensor and is configured to measure the electrical characteristic and provide a digital indication of the measured electrical characteristic. A controller is coupled to the measurement circuitry and is configured to provide a toxic gas output based on the digital indication. The controller is also configured to provide a diagnostic output relative to the metal oxide semiconductor-based sensor based on fluctuations of the measured electrical characteristic over time.

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