公开(公告)号：US07236095B2

公开(公告)日：2007-06-26

申请号：US10524184

申请日：2003-10-08

申请人： Peter John Smith ,  Keith Francis Edwin Pratt

发明人： Peter John Smith ,  Keith Francis Edwin Pratt

IPC分类号： G08B17/00 ,  G01N33/97 ,  G01N7/00 ,  G01N25/18 ,  G01N21/71

CPC分类号： G01N33/0047 ,  G01N27/12 ,  G01N33/004

摘要： A method of detecting a predetermined alarm condition in a combustion emission gas. The method comprises exposing to the gas a semiconductor gas sensor having a p-type mixed metal oxide semiconducting material of the first, second and/or third order transition metal series, the semiconducting material being responsive both to a change in concentration of a reducing gas in the surrounding atmosphere and to a change in concentration of oxygen in the surrounding atmosphere to exhibit a change in its electrical resistance. The resistance is monitored and an alarm signal is output if the resistance exceeds a predetermined value corresponding to the alarm condition.

摘要翻译： 一种检测燃烧排放气体中的预定报警状况的方法。 该方法包括将气体暴露于具有第一，第二和/或三阶过渡金属系列的p型混合金属氧化物半导体材料的半导体气体传感器，该半导体材料既响应于还原气体的浓度变化 在周围的气氛中和周围环境中的氧的浓度变化，从而表现出其电阻的变化。 如果电阻超过与报警条件对应的预定值，则监视电阻并输出报警信号。

公开(公告)号：US07010957B2

公开(公告)日：2006-03-14

申请号：US10275887

申请日：2001-05-09

申请人： David Edward Williams ,  Keith Francis Edwin Pratt ,  Peter John Smith ,  Dirk Niemeyer

发明人： David Edward Williams ,  Keith Francis Edwin Pratt ,  Peter John Smith ,  Dirk Niemeyer

IPC分类号： G01N7/00

CPC分类号： G01N33/004 ,  G01N27/12 ,  G01N33/006 ,  Y10T436/184

摘要： Semiconductor gas-sensitive materials of the formula Cr2-xTixO3 where 0.05>x≧0.0001, and gas sensors formed therefrom.

摘要翻译： 其中0.05> x> = 0.0001的式Cr 2 x x Ti 3 O 3的半导体气体敏感材料和由其形成的气体传感器 。

公开(公告)号：US08215150B2

公开(公告)日：2012-07-10

申请号：US12389526

申请日：2009-02-20

申请人： Martin Willett ,  Keith Francis Edwin Pratt

发明人： Martin Willett ,  Keith Francis Edwin Pratt

IPC分类号： G01N27/02

CPC分类号： G01N33/0073

摘要： A docking station for use with gas sensors includes limited test and diagnostic circuitry directed to specific characteristics of selected detectors. Where a family of detectors is to be evaluated, a universal interface for that family can be included. A single port can be used for multiple different detectors irrespective of specific detector characteristics.

摘要翻译： 与气体传感器一起使用的对接站包括针对所选探测器的特定特性的有限测试和诊断电路。 要对一系列检测器进行评估，可以包括该系列的通用接口。 单个端口可用于多个不同的检测器，而不管特定的检测器特性。

公开(公告)号：US20100288652A1

公开(公告)日：2010-11-18

申请号：US12776689

申请日：2010-05-10

申请人： Keith Francis Edwin Pratt ,  Terence Nicholas Moran ,  Martin Jonathan Kelly ,  John Chapples

发明人： Keith Francis Edwin Pratt ,  Terence Nicholas Moran ,  Martin Jonathan Kelly ,  John Chapples

IPC分类号： G01N27/26

CPC分类号： G01N27/4163 ,  G01N27/404

摘要： A method of improving performance of electrochemical gas sensors includes cycling potentials applied to one or more of the electrodes of the respective sensor(s) to improve performance of a different electrode. In a process for treating a reference electrode, potentials can be applied to working and, or counter electrodes so as to modify the environment in the vicinity of the reference electrode. An apparatus can carry out the method automatically.

摘要翻译： 提高电化学气体传感器性能的方法包括施加到相应传感器的一个或多个电极的循环电位，以改善不同电极的性能。 在处理参考电极的过程中，电位可以施加到工作电极或对电极，以便改变参考电极附近的环境。 一种装置可以自动执行该方法。

公开(公告)号：US20100236924A1

公开(公告)日：2010-09-23

申请号：US12717273

申请日：2010-03-04

申请人： John Chapples ,  Paul James Meighan ,  Martin Jones ,  Keith Francis Edwin Pratt

发明人： John Chapples ,  Paul James Meighan ,  Martin Jones ,  Keith Francis Edwin Pratt

IPC分类号： G01N27/26 ,  G01N27/28

CPC分类号： G01N27/404

摘要： A liquid electrolyte composition obtainable by combining a first component comprising bistrifluoromethanesulfonimide and/or an analogue thereof with a second component comprising a dialkyl sulfone, diaryl sulfone, alkyl aryl sulfone, alkyl acyl sulfone, boric acid, alkyl boronic acid, aryl boronic acid, dialkyl phosphite, trialkyl phosphite, dialkyl phosphate, trialkyl phosphate, alkylene carbonate, alkanoic lactone, preferably alkanoic γ-lactone an analogue of any of these, or mixtures thereof, wherein any of the alkyl, aryl of alkenyl groups may be substituted or unsubstituted. The liquid electrolyte is used in an electrochemical gas sensor.

摘要翻译： 一种液体电解质组合物，其通过将包含双三氟甲磺酰亚胺和/或其类似物的第一组分与包含二烷基砜，二芳基砜，烷基芳基砜，烷基酰基砜，硼酸，烷基硼酸，芳基硼酸，二烷基 亚磷酸酯，亚磷酸三烷基酯，磷酸二烷基酯，磷酸三烷基酯，碳酸亚烷基酯，链烷酸内酯，优选链烷酸γ-内酯，其中任何一种的类似物或其混合物，其中链烯基的任何烷基，芳基可以是取代的或未取代的。 液体电解质用于电化学气体传感器。

公开(公告)号：US09322801B2

公开(公告)日：2016-04-26

申请号：US12776689

申请日：2010-05-10

申请人： Keith Francis Edwin Pratt ,  Terence Nicholas Moran ,  Martin Jonathan Kelly ,  John Chapples

发明人： Keith Francis Edwin Pratt ,  Terence Nicholas Moran ,  Martin Jonathan Kelly ,  John Chapples

IPC分类号： G01N27/26 ,  G01N27/416 ,  G01N27/404

CPC分类号： G01N27/4163 ,  G01N27/404

摘要： A method of improving performance of electrochemical gas sensors includes cycling potentials applied to one or more of the electrodes of the respective sensor(s) to improve performance of a different electrode. In a process for treating a reference electrode, potentials can be applied to working and, or counter electrodes so as to modify the environment in the vicinity of the reference electrode. An apparatus can carry out the method automatically.

摘要翻译： 提高电化学气体传感器性能的方法包括施加到相应传感器的一个或多个电极的循环电位，以改善不同电极的性能。 在处理参考电极的过程中，电位可以施加到工作电极或对电极，以便改变参考电极附近的环境。 一种装置可以自动执行该方法。

公开(公告)号：US08317998B2

公开(公告)日：2012-11-27

申请号：US12754023

申请日：2010-04-05

申请人： Keith Francis Edwin Pratt ,  John Chapples ,  Martin Jones ,  Stefan Dan Costea ,  Mihai Gologanu

发明人： Keith Francis Edwin Pratt ,  John Chapples ,  Martin Jones ,  Stefan Dan Costea ,  Mihai Gologanu

IPC分类号： G01F1/64 ,  G01N17/00 ,  G01N27/26

CPC分类号： G01N27/404 ,  G01N33/007

摘要： A method of operating an electrochemical gas sensor includes: a) exposing, for a first predetermined duration, the electrochemical gas sensor to an atmosphere containing a target gas while the gas reaction capability of the electrode assembly is substantially reduced from a working level, such that target gas is collected within the housing; b) increasing the gas reaction capability of the electrode assembly to a level at which it consumes collected target gas and thereby outputs a signal to the sensing circuit, including an initial transient decay signal; c) monitoring the transient decay signal; and d) analysing the rate of decay of the transient decay signal to determine whether the performance of at least one component of the electrochemical gas sensor is within acceptable limits. An apparatus for operating an electrochemical gas sensor, adapted for connection to an electrochemical gas sensor via a sensing circuit for control thereof, can carry out the disclosed method(s).

摘要翻译： 操作电化学气体传感器的方法包括：a）将电化学气体传感器第一预定持续时间暴露于含有目标气体的气氛，同时电极组件的气体反应能力从工作水平显着降低，使得 目标气体收集在壳体内; b）将电极组件的气体反应能力提高到消耗收集的目标气体的水平，从而将信号输出到感测电路，包括初始瞬态衰减信号; c）监测瞬态衰减信号; 以及d）分析瞬态衰减信号的衰减速率，以确定电化学气体传感器的至少一个部件的性能是否在可接受的极限内。 一种用于操作电化学气体传感器的装置，其可用于经由用于控制的感测电路连接到电化学气体传感器，可以执行所公开的方法。

公开(公告)号：US08142625B2

公开(公告)日：2012-03-27

申请号：US12431059

申请日：2009-04-28

申请人： Keith Francis Edwin Pratt

发明人： Keith Francis Edwin Pratt

IPC分类号： C25B11/03

CPC分类号： G01N27/30

摘要： An electrochemical gas detector includes a superhydrophobic, nanostructured gas porous electrode. The electrode exhibits a physically disrupted porous region. In an embodiment, electrode material can be deposited around a templating material which is removed before use. Such electrodes exhibit repeatable and reproducible characteristics.

摘要翻译： 电化学气体检测器包括超疏水的纳米结构气体多孔电极。 电极表现出物理破裂的多孔区域。 在一个实施例中，电极材料可以围绕模板材料沉积，在使用前被去除。 这样的电极表现出可重复和可再现的特性。

公开(公告)号：US20080163674A1

公开(公告)日：2008-07-10

申请号：US11738853

申请日：2007-04-23

申请人： Ulrich Bonne ,  Martin John Willett ,  Keith Francis Edwin Pratt ,  Jerry W. Evans

发明人： Ulrich Bonne ,  Martin John Willett ,  Keith Francis Edwin Pratt ,  Jerry W. Evans

IPC分类号： G01N35/00

CPC分类号： G01N33/0011 ,  B01L3/5027 ,  G01N1/40 ,  G01N1/405 ,  G01N30/6095 ,  G01N2033/0019 ,  Y10T436/117497

摘要： A sensor system having an analyte modulator, detector and a pump. The concentration of an analyte sample may be modulated at one time constant. The detector may have an output with a drift at another time constant. The one time constant may be shorter than the latter time constant. The latter time constant may be substantially removed from the detector output with a discriminator. A reservoir may receive high concentrations of analyte from the modulator, before analyte is forwarded to the detector and pump via analyte conveyance lines and valving. The modulation or pre-concentration of analyte in the sensor system may entail shorter times and smaller volumes than those needed by the detector. Such mismatches may be alleviated via accumulation of analyte in the reservoir prior to being forwarded to the detector.

摘要翻译： 具有分析物调制器，检测器和泵的传感器系统。 可以一次调节分析物样品的浓度恒定。 检测器可以具有在另一时间常数下具有漂移的输出。 一次常数可能短于后一时间常数。 后一时间常数可以用鉴别器从检测器输出中基本上去除。 在将分析物转运到检测器并通过分析物输送管线和阀门泵送之前，储存器可以从调节器接收高浓度的分析物。 传感器系统中分析物的调节或预浓缩可能需要比检测器所需的更短的时间和更小的体积。 这样的错配可以在被转发到检测器之前通过在储存器中的分析物的积累来缓解。

公开(公告)号：US20190041351A1

公开(公告)日：2019-02-07

申请号：US16068554

申请日：2016-01-08

申请人： Keith Francis Edwin PRATT ,  Honeywell International Inc.

发明人： Keith Francis Edwin Pratt ,  Viorel Avramescu ,  John Chapples ,  Martin Geoffrey Jones

IPC分类号： G01N27/404

摘要： An electrochemical sensor comprises a substrate disposed within a housing, a plurality of electrodes disposed on a first surface of the substrate, an electrolyte disposed over at least a portion of each electrode of the plurality of electrodes, and a capillary disposed through the substrate. The capillary is configured to provide a diffusion pathway for a target gas to pass from an exterior of the housing to one or more of the plurality of electrodes.