APPARATUS AND METHOD FOR MEASURING NITRIC OXIDE IN EXHALED BREATH
    81.
    发明申请
    APPARATUS AND METHOD FOR MEASURING NITRIC OXIDE IN EXHALED BREATH 审中-公开
    用于测量呼吸道中氮氧化物的装置和方法

    公开(公告)号:WO2007120780A3

    公开(公告)日:2008-08-21

    申请号:PCT/US2007009053

    申请日:2007-04-13

    CPC classification number: G01N33/497 G01N33/0037 Y02A50/245

    Abstract: A sensing apparatus (100) to measure nitric oxide (NO) in exhaled breath is disclosed. An embodiment of the sensing apparatus includes an inlet (102), a pretreatment element (104), and a sensing electrode(106). The inlet (102) is configured to receive the exhaled breath. The pretreatment element (104) is configured to receive the exhaled breath from the inlet (102) and to condition a chemical characteristic of the exhaled breath. The sensing electrode (106) is coupled to a chamber within the sensing apparatus (100). The chamber is configured to receive the pretreated exhaled breath from the pretreatment element (104). The sensing electrode (106) is configured to detect a component of nitrogen oxide (NOX) in the exhaled breath.

    Abstract translation: 公开了一种用于测量呼出气中的一氧化氮(NO)的感测装置(100)。 感测装置的实施例包括入口(102),预处理元件(104)和感测电极(106)。 入口(102)被配置为接收呼出的呼吸。 预处理元件(104)构造成从入口(102)接收呼出的呼吸并调节呼出气体的化学特性。 感测电极(106)耦合到感测装置(100)内的腔室。 腔室构造成从预处理元件(104)接收经预处理的呼出气体。 检测电极(106)被配置为检测呼出的呼吸中的氮氧化物(NOX)的成分。

    OPTICAL METHODS AND SYSTEMS FOR DETECTING A CONSTITUENT IN A GAS CONTAINING OXYGEN IN HARSH ENVIRONMENTS
    82.
    发明申请
    OPTICAL METHODS AND SYSTEMS FOR DETECTING A CONSTITUENT IN A GAS CONTAINING OXYGEN IN HARSH ENVIRONMENTS 审中-公开
    用于检测恶劣环境中含氧气体成分的光学方法和系统

    公开(公告)号:WO2007121032B1

    公开(公告)日:2008-04-17

    申请号:PCT/US2007064665

    申请日:2007-03-22

    Abstract: A method for detecting a gas phase constituent such as carbon monoxide, nitrogen dioxide, hydrogen, or hydrocarbons in a gas comprising oxygen such as air, includes providing a sensing material or film (20, 120) having a metal embedded in a catalytically active matrix such as gold embedded in a yttria stabilized zirconia (YSZ) matrix. The method may include annealing the sensing material at about 900°C, exposing the sensing material (20, 120) and gas to a temperature above 400°C, projecting light onto the sensing material (20, 120), and detecting a change in the absorption spectrum of the sensing material due to the exposure of the sensing material to the gas in air at the temperature which causes a chemical reaction in the sensing material compared to the absorption spectrum of the sensing material in the absence of the gas. Systems (700) employing such a method are also disclosed.

    Abstract translation: 用于检测诸如一氧化碳,二氧化氮,氢气或含氧气体例如空气的气体中的烃的气相成分的方法包括提供具有嵌入催化活性基质中的金属的感测材料或膜(20,120) 如镶嵌在氧化钇稳定氧化锆(YSZ)基体中的金。 该方法可以包括在约900℃下对传感材料进行退火,将传感材料(20,120)和气体暴露于400℃以上的温度,将光投射到传感材料(20,120)上,并且检测传感材料 由于传感材料暴露于空气中的气体所引起的传感材料的吸收光谱与在不存在气体的情况下传感材料的吸收光谱相比导致传感材料中发生化学反应的温度。 还公开了采用这种方法的系统(700)。

    METHOD AND DEVICE FOR MEASURING THE POLLUTANTS IN EXHAUST GASES OF INTERNAL COMBUSTION ENGINES
    83.
    发明申请
    METHOD AND DEVICE FOR MEASURING THE POLLUTANTS IN EXHAUST GASES OF INTERNAL COMBUSTION ENGINES 审中-公开
    方法和设备,用于内燃机废气污染物测量

    公开(公告)号:WO2007134850A2

    公开(公告)日:2007-11-29

    申请号:PCT/EP2007004571

    申请日:2007-05-23

    Inventor: WITTLER MICHAEL

    Abstract: The invention relates to a method for measuring oxygen-containing nitrogen components, including nitrogen dioxide, in exhaust gases of internal combustion engines, in which method an exhaust gas sample is branched off from an extraction point 10 on the exhaust pipe 1 and is supplied by means of an extraction line 11 to at least one measuring device 5, wherein a separate extraction point 10 and extraction line 11 are provided for measuring the oxygen-containing nitrogen components, and in that, in order to measure the oxygen-containing nitrogen components, the exhaust gas sample is set to a temperature at which the possibility of a reaction between nitrogen dioxide and soot is low.

    Abstract translation: 一种用于测量含氧 - 氮化合物,包括在内燃机的废气中的氮氧化物的方法,其中分支从一个供体部位10的废气样品在排气管1和至少一个测量装置5通过排出管道11,来供给,其中用于含氧 - 氮成分的测定中,单独的采样点10和采样线 11可被提供,并且用于含氧 - 氮成分的测量的废气样品被设定为在该二氧化氮和炭黑之间的反应的可能性是低的温度。

    MEASURING NITROGEN OXIDES AND OTHER GASES BY OZONE FORMATION
    84.
    发明申请
    MEASURING NITROGEN OXIDES AND OTHER GASES BY OZONE FORMATION 审中-公开
    通过臭氧形成测量氮氧化物和其他气体

    公开(公告)号:WO2007041164A2

    公开(公告)日:2007-04-12

    申请号:PCT/US2006/037693

    申请日:2006-09-26

    Inventor: BOGNAR, John, A.

    CPC classification number: G01N33/0037 Y02A50/245 Y10T436/179228

    Abstract: A photochemical sensing system enables the measurement of nitrogen oxides (nitrogen dioxide and nitric oxide) by photolyzing nitrogen dioxide to form oxygen atoms which combine with oxygen molecules to form ozone. Ozone reacts with nitric oxide to for nitrogen dioxide - decreasing ozone. Changes in ozone concentration are measured as a surrogate for the nitrogen dioxide and nitric oxide. Any species which photolyzes to yield oxygen atoms may be measured by this technique. Additional specificity for nitrogen oxides is conferred by allowing the nitric oxide to react with the ozone to recreate the nitrogen dioxide. By periodically photolyzing the nitrogen dioxide (to form ozone), and then allowing the resulting nitric oxide to react with the ozone (thereby reducing ozone), a pulsed signal is obtained whose amplitude is proportional to the total amount of nitrogen dioxide and nitric oxide present. Medical applications include measuring nitric oxide concentrations in expired air samples.

    Abstract translation: 光化学传感系统能够通过光解二氧化氮形成氮氧化物(二氧化氮和一氧化氮),形成与氧分子结合形成臭氧的氧原子。 臭氧与一氧化氮反应以进行二氧化氮 - 减少臭氧。 臭氧浓度的变化被测量为二氧化氮和一氧化氮的替代物。 可以通过这种技术测量任何光解产生氧原子的物质。 通过允许一氧化氮与臭氧反应以再生二氧化氮来赋予氮氧化物的额外特异性。 通过周期性地光照二氧化氮(形成臭氧),然后使所得到的一氧化氮与臭氧反应(从而减少臭氧),获得脉冲信号,其振幅与存在的二氧化氮和一氧化氮的总量成比例 。 医疗应用包括测量呼气试样中的一氧化氮浓度。

    COMPUTER-IMPLEMENTED SYSTEM AND METHOD FOR ANALYZING MIXTURES OF GASES
    85.
    发明申请
    COMPUTER-IMPLEMENTED SYSTEM AND METHOD FOR ANALYZING MIXTURES OF GASES 审中-公开
    用于分析气体混合物的计算机实现系统和方法

    公开(公告)号:WO2006137906A3

    公开(公告)日:2007-04-05

    申请号:PCT/US2005036265

    申请日:2005-10-06

    Abstract: A computer- implemented system and method for converting the resistances of an array of metal oxide sensors into constituents and concentrations of a multi-component gas provided around the sensor array. The method includes providing a self-diagnostic module to calculate the quality factors associated with corresponding prediction models and determine if the response of the sensor array are within a preferrred range; and providing a concentration calculation module to calculate the gas concentration outputs from each prediction model, corresponding tolerance limits, and gas concentration outputs determined by weighting the outputs from the prediction models by corresponding quality factors and determining the weighted tolerance limits, so that the gas concentration outputs with the lowest tolerance limits can be reported as the actual constituents and concentrations of the multi-component gas .

    Abstract translation: 一种计算机实现的系统和方法,用于将金属氧化物传感器阵列的电阻转换成传感器阵列周围提供的多组分气体的成分和浓度。 该方法包括提供自诊断模块来计算与相应预测模型相关联的质量因子,并确定传感器阵列的响应是否在优选的范围内; 并提供浓度计算模块,以计算来自每个预测模型的气体浓度输出,相应的公差极限和通过对应的质量因子对来自预测模型的输出进行加权确定的气体浓度输出,并确定加权公差极限,使得气体浓度 具有最低公差极限的输出可以报告为多组分气体的实际成分和浓度。

    LOW COST APPARATUS FOR DETECTION OF NITROGEN-CONTAINING GAS COMPOUNDS
    86.
    发明申请
    LOW COST APPARATUS FOR DETECTION OF NITROGEN-CONTAINING GAS COMPOUNDS 审中-公开
    用于检测含氮气体化合物的低成本装置

    公开(公告)号:WO2006114766A2

    公开(公告)日:2006-11-02

    申请号:PCT/IB2006051288

    申请日:2006-04-25

    Abstract: Nitrogen-containing compounds are detected by chemically converting (210) them to nitrogen dioxide, and detecting (10) the amount of nitrogen dioxide. A semiconductor laser or light emitting diode (132) provides a modulated light (131) in the blue- violet-green wavelength range and a narrow bandwidth photo-acoustic sensor (10) detects the standing waves produced by the absorption of the light by the nitrogen dioxide. The photo-acoustic sensor (10) uses a resonant cavity (161, 182a-b) with a resonant frequency that corresponds to the modulation frequency of the light (131). For detecting nitric oxide, a surface chemical oxidation unit (210) is preferably used to convert the nitric oxide to nitrogen dioxide, using, for example potassium permanganate (KMnO4) filter, or a platinum (Pt) catalyst unit (260).

    Abstract translation: 通过化学转化(210)二氧化氮并检测(10)二氧化氮的量来检测含氮化合物。 半导体激光器或发光二极管(132)提供蓝紫色 - 绿色波长范围内的调制光(131),而窄带宽的光声传感器(10)检测通过吸收光产生的驻波 二氧化氮。 光声传感器(10)使用具有与光(131)的调制频率对应的谐振频率的谐振腔(161,182a-b)。 为了检测一氧化氮,使用例如高锰酸钾(KMnO4)过滤器或铂(Pt)催化剂单元(260),优选使用表面化学氧化单元(210)将一氧化氮转化为二氧化氮。

    SENSORELEMENT UND VERFAHREN ZUR BESTIMMUNG VON GASKOMPONENTEN
    89.
    发明申请
    SENSORELEMENT UND VERFAHREN ZUR BESTIMMUNG VON GASKOMPONENTEN 审中-公开
    传感器元件和用于确定气体成分

    公开(公告)号:WO2003036282A2

    公开(公告)日:2003-05-01

    申请号:PCT/DE2002/003974

    申请日:2002-10-22

    CPC classification number: G01N33/0037 Y02A50/245

    Abstract: Es wird Sensorelement zur Bestimmung von Gaskomponenten in Gasgemischen, insbesondere von NO X in Abgasen von Verbrennungsmotoren, beschrieben mit einer ersten und einer zweiten elektrochemischen Konzentrationszelle. Die Konzentrationszellen weisen jeweils eine erste und eine zweite Elektrode (31, 33, 35) auf, wobei mit der ersten Konzentrationszelle freier Sauerstoff und mit der zweiten Konzentrationszelle die Summe aus freiem Sauerstoff und aus der Zersetzung der Gaskomponente resultierendem oder dabei verbrauchtem Sauerstoff bestimmt wird. Der ersten Elektrode (31) der ersten Konzentrationszelle ist ein Diffusionswiderstand (23) in Strömungsrichtung des Gasgemischs vorangestellt, der im wesentlichen einem der ersten Elektrode (33) der zweiten Konzentrationszelle vorangestellten Diffusionswiderstand (23) entspricht.

    Abstract translation: 有> X <内燃机的废气与第一和第二电化学浓差电池描述的传感器元件,用于确定在气体混合物的气体组分,特别是NO的。 细胞的浓度分别具有一个第一和一个第二电极(31,33,35),其中的游离氧,而从气体成分所得的分解或而消耗的氧与第一浓度的无细胞的氧和与所述第二浓度小区中确定的总和。 所述第二浓度细胞前缀扩散电阻(23)的第一电极(33)的第一浓度电池的第一电极(31)通过在气体混合物的流动方向基本上之一的扩散电阻器(23)之前。

Patent Agency Ranking