Device and method for continuous measurement of concentrations of tars in a gas flow
    92.
    发明授权
    Device and method for continuous measurement of concentrations of tars in a gas flow 失效
    用于连续测量气流中焦油浓度的装置和方法

    公开(公告)号:US07968055B2

    公开(公告)日:2011-06-28

    申请号:US12518316

    申请日:2007-12-27

    IPC分类号: G01N5/02

    CPC分类号: G01N33/0047 G01N5/02

    摘要: The measurement is conducted by means of thermogravimetric scales (10) bearing at one end of the beam (20) a catalyst body (30) for catalysing a coking reaction of the tars present in the gas state. Precautions are taken in order to ensure homogeneity and regularity of the sampled gas flow and to guarantee predominant catalysis on the catalytic body (30), the weight increase of which gives the weight of the deposited coke and indirectly the content of tars present in the gas state in the gas to be measured. A calorimetric device (34) for analyzing gases from the coking of the tars provides a complementary and/or additional measurement. The solid tars are filtered beforehand, but their content may be measured by an auxiliary device.Possible application to analyzing gases from biomass.

    摘要翻译: 通过在梁的一端(20)处承载催化剂体(30)的热重量秤(10)进行测量,催化剂体(30)用于催化气体状态下存在的焦油的焦化反应。 采取注意事项以确保取样气流的均匀性和规律性,并保证对催化剂体(30)的主要催化作用,其重量增加赋予沉积焦炭的重量,间接地产生气体中含有的焦油 状态在被测气体中。 用于分析来自焦油焦化的气体的量热装置(34)提供补充和/或附加的测量。 固体焦油预先过滤,但其含量可以通过辅助装置测量。 分析生物质气体的可能应用。

    CHEMICAL SENSOR USING METAL NANO-PARTICLES AND METHOD FOR MANUFACTURING CHEMICAL SENSOR USING METAL NANO-PARTICLES
    93.
    发明申请
    CHEMICAL SENSOR USING METAL NANO-PARTICLES AND METHOD FOR MANUFACTURING CHEMICAL SENSOR USING METAL NANO-PARTICLES 有权
    使用金属纳米颗粒的化学传感器和使用金属纳米颗粒制造化学传感器的方法

    公开(公告)号:US20110150701A1

    公开(公告)日:2011-06-23

    申请号:US12946852

    申请日:2010-11-15

    IPC分类号: G01N33/00 H05K3/00

    摘要: A chemical sensor using metal nano-particles and a method for manufacturing a chemical sensor using metal nano-particles are provided. The chemical sensor includes: metal nano-particles; single-ligand organic molecules (or a single molecule) that binds to the metal nano-particles by using a metal bonding functional group; a substrate bonding functional group formed at the metal nano-particles and the single-ligand organic molecules as bound to each other; a substrate; electrodes formed on the substrate and having an interdigitate (IDT) structure; and a substrate functional group formed on the substrate and positioned between the electrodes, wherein the substrate bonding functional group and the substrate functional group are covalently bonded.

    摘要翻译: 提供了使用金属纳米粒子的化学传感器和使用金属纳米粒子的化学传感器的制造方法。 化学传感器包括:金属纳米颗粒; 通过使用金属键合官能团与金属纳米颗粒结合的单配体有机分子(或单分子); 在金属纳米颗粒和单配位体有机分子之间形成的与底物结合的官能团彼此结合; 底物; 电极,形成在基板上并具有交叉(IDT)结构; 以及形成在基板上并位于电极之间的基板官能团,其中基板结合官能团和基板官能团共价键合。

    Thin-Film Passive Samplers for Detection of Hydrophobic Organic Contaminants and Estrogenicity in Various Environments
    94.
    发明申请
    Thin-Film Passive Samplers for Detection of Hydrophobic Organic Contaminants and Estrogenicity in Various Environments 审中-公开
    用于检测疏水性有机污染物的薄膜被动取样器和各种环境中的雌激素性

    公开(公告)号:US20110070597A1

    公开(公告)日:2011-03-24

    申请号:US12783840

    申请日:2010-05-20

    IPC分类号: G01N33/00

    摘要: A thin-film passive sampler for use in detecting hydrophobic organic contaminants in air or aqueous environments. The sampler features a relatively thin layer of a suitable absorbent matrix coated directly on a solid support unit made of an inert material such as titanium or glass fibers. The passive samplers are simple and cost-effective to manufacture, easy to use, and exhibit rapid equilibration times and high accuracy.

    摘要翻译: 用于在空气或水环境中检测疏水性有机污染物的薄膜被动取样器。 采样器具有相对薄的合适的吸收性基质层,其直接涂覆在由诸如钛或玻璃纤维的惰性材料制成的固体支撑单元上。 被动采样器制造简单,成本效益高,易于使用,并具有快速平衡时间和高精度。

    Gas-sensing semiconductor devices
    95.
    发明授权
    Gas-sensing semiconductor devices 有权
    气敏半导体器件

    公开(公告)号:US07849727B2

    公开(公告)日:2010-12-14

    申请号:US12065296

    申请日:2006-07-12

    IPC分类号: G01N7/00

    摘要: A gas-sensing semiconductor device 1′ is fabricated on a silicon substrate 2′ having a thin silicon dioxide insulating layer 3′ in which a resistive heater 6 made of doped single crystal silicon formed simultaneously with source and drain regions of CMOS circuitry is embedded. The device 1′ includes a sensing area provided with a gas-sensitive layer 9′ separated from the heater 6′ by an insulating layer 4′. As one of the final fabrication steps, the substrate 2′ is back-etched so as to form a thin membrane in the sensing area. The heater 6′ has a generally circular-shaped structure surrounding a heat spreading plate 16′, and consists of two sets 20′, 21′ of meandering resistors having arcuate portions nested within one another and interconnected in labyrinthine form. The fabrication of the heater at the same time as the source and drain regions of CMOS circuitry is particularly advantageous in that the gas-sensing semiconductor device is produced without requiring any fabrication steps in addition to those already employed in the IC processing apart from a post-CMOS back etch and deposition of the gas-sensitive layer. The circular design is advantageous in that it is the best solution to minimise the size of the membrane at fixed power loss and heated area.

    摘要翻译: 在具有薄的二氧化硅绝缘层3'的硅衬底2'上制造气体感测半导体器件1',其中嵌入与CMOS电路的源极和漏极区域同时形成的由掺杂单晶硅制成的电阻加热器6。 装置1'包括具有通过绝缘层4'与加热器6'分离的气敏层9'的感测区域。 作为最终制造步骤之一,衬底2'被反蚀刻以在感测区域中形成薄膜。 加热器6'具有围绕散热板16'的大致圆形结构,并且由具有彼此嵌套并且以迷宫形式互连的弓形部分的曲折电阻器的两组20',21'组成。 与CMOS电路的源极和漏极区域同时地制造加热器是特别有利的,因为除了在后处理中已经用于IC处理中的那些之外,制造气体感测半导体器件不需要任何制造步骤 -CMOS背蚀刻和气敏层的沉积。 圆形设计是有利的,因为它是在固定功率损耗和加热面积下最小化膜尺寸的最佳解决方案。

    Tracer to compensate for environmental variations that influence a chemical vapor sensor measurement
    96.
    发明授权
    Tracer to compensate for environmental variations that influence a chemical vapor sensor measurement 有权
    示踪剂补偿影响化学气相传感器测量的环境变化

    公开(公告)号:US07736903B2

    公开(公告)日:2010-06-15

    申请号:US11243556

    申请日:2005-10-05

    IPC分类号: G01N33/00

    摘要: A chemical vapor sensor is provided that passively measures a suspect chemical species of interest with high sensitivity and chemical specificity, for use with safety systems. A vapor concentrator amplifies a suspect chemical vapor concentration to a detectible level, for use with an infrared detector. Compensation is provided for environmental variations that may influence the passive measurement of the chemical vapor sensor. Environmental variations may include extrinsic vapors in the surrounding air, or air currents that divert the sample vapor as it drifts from the suspect vapor source to a sampling intake. In an example, ethanol vapor is measured and carbon dioxide tracer measurements are used to calculate an ethanol vapor measurement that is adjusted for environmental variations. In an aspect, a time artifact filter sets the output of the carbon dioxide sensor to match the time dependence of the ethanol sensor, to calculate blood alcohol concentration.

    摘要翻译: 提供了一种化学气相传感器,被动地测量了高灵敏度和化学特异性的可疑化学物质,用于安全系统。 蒸汽浓缩器将可疑的化学气体浓度放大到可检测的水平,以便与红外检测器一起使用。 为可能影响化学气相传感器被动测量的环境变化提供补偿。 环境变化可能包括周围空气中的外在蒸汽,或者当样品蒸汽从可疑蒸汽源漂移到采样进气口时,使样品蒸气转移的气流。 在一个实例中,测量乙醇蒸气并使用二氧化碳示踪剂测量来计算根据环境变化调节的乙醇蒸气测量值。 在一方面,时间伪影过滤器设定二氧化碳传感器的输出以匹配乙醇传感器的时间依赖性,以计算血液酒精浓度。

    OPTICAL METHODS AND SYSTEMS FOR DETECTING A CONSTITUENT IN A GAS CONTAINING OXYGEN IN HARSH ENVIRONMENTS
    97.
    发明申请
    OPTICAL METHODS AND SYSTEMS FOR DETECTING A CONSTITUENT IN A GAS CONTAINING OXYGEN IN HARSH ENVIRONMENTS 有权
    用于检测包含在海洋环境中的氧气的气体中的物质的光学方法和系统

    公开(公告)号:US20090207413A1

    公开(公告)日:2009-08-20

    申请号:US12293501

    申请日:2007-03-22

    IPC分类号: G01N21/00

    摘要: 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 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 and gas to a temperature above 400° C., projecting light onto the sensing material, 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 employing such a method are also disclosed.

    摘要翻译: 一种用于检测包括氧气如气体的气体中的一氧化碳,二氧化氮,氢气或烃类的气相成分的方法包括提供一种感测材料或膜,该感测材料或膜具有埋入催化活性基质中的金属, 氧化钇稳定氧化锆(YSZ)基体。 该方法可以包括在约900℃退火感测材料,将感测材料和气体暴露于高于400℃的温度,将光投射到感测材料上,并检测感应材料的吸收光谱的变化 在感测材料中与在不存在气体的情况下与感测材料的吸收光谱相比,在感测材料中引起化学反应的温度下感测材料暴露于空气中的气体。 还公开了采用这种方法的系统。

    Gas-Sensing Semiconductor Devices
    98.
    发明申请
    Gas-Sensing Semiconductor Devices 有权
    气体传感半导体器件

    公开(公告)号:US20090126460A1

    公开(公告)日:2009-05-21

    申请号:US12065296

    申请日:2006-07-12

    IPC分类号: G01N7/00 H01L29/78

    摘要: A gas-sensing semiconductor device 1′ is fabricated on a silicon substrate 2′ having a thin silicon dioxide insulating layer 3′ in which a resistive heater 6 made of doped single crystal silicon formed simultaneously with source and drain regions of CMOS circuitry is embedded. The device 1′ includes a sensing area provided with a gas-sensitive layer 9′ separated from the heater 6′ by an insulating layer 4′. As one of the final fabrication steps, the substrate 2′ is back-etched so as to form a thin membrane in the sensing area. The heater 6′ has a generally circular-shaped structure surrounding a heat spreading plate 16′, and consists of two sets 20′, 21′ of meandering resistors having arcuate portions nested within one another and interconnected in labyrinthine form. The fabrication of the heater at the same time as the source and drain regions of CMOS circuitry is particularly advantageous in that the gas-sensing semiconductor device is produced without requiring any fabrication steps in addition to those already employed in the IC processing apart from a post-CMOS back etch and deposition of the gas-sensitive layer. The circular design is advantageous in that it is the best solution to minimise the size of the membrane at fixed power loss and heated area.

    摘要翻译: 在具有薄的二氧化硅绝缘层3'的硅衬底2'上制造气体感测半导体器件1',其中嵌入与CMOS电路的源极和漏极区域同时形成的由掺杂单晶硅制成的电阻加热器6。 装置1'包括具有通过绝缘层4'与加热器6'分离的气敏层9'的感测区域。 作为最终制造步骤之一,衬底2'被反蚀刻以在感测区域中形成薄膜。 加热器6'具有围绕散热板16'的大致圆形结构,并且由具有彼此嵌套并且以迷宫形式互连的弓形部分的曲折电阻器的两组20',21'组成。 与CMOS电路的源极和漏极区域同时地制造加热器是特别有利的,因为除了在后处理中已经用于IC处理中的那些之外,制造气体感测半导体器件不需要任何制造步骤 -CMOS背蚀刻和气敏层的沉积。 圆形设计是有利的,因为它是在固定功率损耗和加热面积下最小化膜尺寸的最佳解决方案。

    GAS SENSOR UNIT AND METHOD OF FORMING THE SAME
    100.
    发明申请
    GAS SENSOR UNIT AND METHOD OF FORMING THE SAME 失效
    气体传感器单元及其形成方法

    公开(公告)号:US20070266770A1

    公开(公告)日:2007-11-22

    申请号:US11682321

    申请日:2007-03-06

    IPC分类号: G01N9/00

    CPC分类号: G01N27/126 G01N33/0047

    摘要: A gas sensor unit includes a conductive polymer and an absorbent for absorbing gas molecules. The conductive polymer is polyaniline (PAN) and the absorbent is polyurethane (PU). The content of the conductive polymer is 25-55 wt % and the content of the absorbent is 45-75 wt %

    摘要翻译: 气体传感器单元包括导电聚合物和用于吸收气体分子的吸收剂。 导电聚合物是聚苯胺(PAN),吸收剂是聚氨酯(PU)。 导电聚合物的含量为25-55重量%,吸收剂的含量为45-75重量%