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1. 发明公开

EP2693198A2 Gas analyser 有权
标题翻译：气体分析仪
公开(公告)号：EP2693198A2
公开(公告)日：2014-02-05
申请号：EP13178843.2
申请日：2013-07-31
申请人： Alphasense Limited
发明人： The designation of the inventor has not yet been filed
IPC分类号： G01N21/31 , G01N21/33
CPC分类号： G01J3/42 , G01N21/05 , G01N21/314 , G01N21/33
摘要： A gas analyser is provided to measure the concentration of formaldehyde within enclosed environments such as within buildings comprising an ultraviolet light source (102), a sample chamber (104), a detector (112, 114). The detector measures the intensity of light received by photosensors within a measurement range of wavelengths, and at least one reference range of wavelengths. Advantageously, the concentration of formaldehyde is determined taking into account fluctuations in the intensity of light emitted by the light source, and in the presence of any interferents such as nitrogen dioxide.
A method of measuring the concentration of formaldehyde in enclosed environments is also presented.
摘要翻译：提供气体分析器以测量包括紫外光源（102），样品室（104），检测器（112,114）在内的封闭环境内的甲醛浓度。该检测器测量在一个测量波长范围内和至少一个参考波长范围内由光电传感器接收的光的强度。有利的是，考虑到由光源发出的光的强度波动以及在存在任何干扰物如二氧化氮的情况下确定甲醛浓度。还介绍了一种测量封闭环境中甲醛浓度的方法。

2. 发明授权

EP1154267B1 Electrochemical sensor for determining analyte in the presence of interferent 有权
标题翻译：用于在干扰气体的存在下测定分析物的电化学传感器
公开(公告)号：EP1154267B1
公开(公告)日：2009-02-18
申请号：EP01304285.8
申请日：2001-05-14
申请人： Alphasense Limited
发明人： Saffell, John R. , Hitchman, Michael L. , Dawson, Darryl H.
IPC分类号： G01N27/49
CPC分类号： G01N27/4045 , G01N33/004

3. 发明公开

EP1336840A3 Carbon monoxide electrochemical sensor 有权
标题翻译：用于检测一氧化碳的电化学传感器
公开(公告)号：EP1336840A3
公开(公告)日：2004-01-07
申请号：EP03250935.8
申请日：2003-02-15
申请人： Alphasense Limited
发明人： Harper, Christopher John
IPC分类号： G01N27/403 , G01N33/00
CPC分类号： G01N33/004 , G01N27/4045
摘要： Disclosed is an electrochemical sensor for measuring carbon monoxide in a gas sample, the sensor comprising a working electrode including a working electrode catalyst, and a diffusion restriction means for restricting the diffusion of the gas sample to the working electrode; wherein the working electrode catalyst comprises oxidised platinum having a hydrogen cross-sensitivity of less than 10% and being present in an amount such that the activity capacity is at least 5.

4. 发明公开

EP3081920A3 OPTICAL PARTICLE COUNTER 有权
标题翻译：光学粒子计数器
公开(公告)号：EP3081920A3
公开(公告)日：2016-11-23
申请号：EP16165282.1
申请日：2016-04-14
申请人： Alphasense Limited
发明人： Kaye, Paul Henry , Hirst, Edwin
IPC分类号： G01N15/02 , G01N15/14 , G01N15/00 , G01N15/10
CPC分类号： G01N21/4738 , G01N15/0205 , G01N15/14 , G01N15/1459 , G01N21/85 , G01N2015/0038 , G01N2015/1075 , G01N2015/1486 , G01N2021/8578
摘要： An optical particle counter determines the velocity of particles passing through a particle detection zone, and thereby the velocity of gas flow, from both the measured time of flight of discrete particles and also the size of intensity peaks of scattered light. This is used to determine particle concentration and may be used to control an optional fan.

5. 发明公开

EP3081920A2 OPTICAL PARTICLE COUNTER 有权
标题翻译：光学粒子计数器
公开(公告)号：EP3081920A2
公开(公告)日：2016-10-19
申请号：EP16165282.1
申请日：2016-04-14
申请人： Alphasense Limited
发明人： The designation of the inventor has not yet been filed
IPC分类号： G01N15/02 , G01N15/14 , G01N15/00 , G01N15/10
CPC分类号： G01N21/4738 , G01N15/0205 , G01N15/14 , G01N15/1459 , G01N21/85 , G01N2015/0038 , G01N2015/1075 , G01N2015/1486 , G01N2021/8578
摘要： An optical particle counter determines the velocity of particles passing through a particle detection zone, and thereby the velocity of gas flow, from both the measured time of flight of discrete particles and also the size of intensity peaks of scattered light. This is used to determine particle concentration and may be used to control an optional fan.
摘要翻译：光学粒子计数器根据离散粒子的测量时间以及散射光的强度峰值的大小来确定通过粒子检测区域的粒子的速度，并由此确定气流的速度。这用于确定颗粒浓度，并可用于控制可选风扇。

6. 发明公开

EP2975390A1 AMPEROMETRIC ELECTROCHEMICAL GAS SENSING APPARATUS AND METHOD FOR MEASURING OXIDISING GASES 有权
标题翻译： VERFAHREN ZUR MESSUNG VON OXIDIERENDEN GASEN的安捷伦化学气相色谱
公开(公告)号：EP2975390A1
公开(公告)日：2016-01-20
申请号：EP15176730.8
申请日：2015-07-14
申请人： Alphasense Limited
发明人： SAFFELL, John , HOSSAIN, Marlene , BARON, Ronan
IPC分类号： G01N27/404
CPC分类号： G01N27/4045 , G01N33/0037 , G01N33/0039 , G01N33/0059
摘要： An amperometric electrochemical gas sensing apparatus for sensing NO 2 and O 3 in a sample gas and a method of using same. The apparatus comprises: a first working electrode which is a carbon electrode and at which both NO 2 and O 3 are reducible to thereby generate a current; a second working electrode which is a carbon electrode and at which NO 2 is reducible to thereby generate a current; and an O 3 filter adjacent the second working electrode, and said apparatus is configured such that, in operation, the first working electrode and the O 3 filter are exposed to the sample gas in parallel.
摘要翻译：用于检测样品气体中的NO 2和O 3的电流电化学气体感测装置及其使用方法。该装置包括：第一工作电极，其是碳电极，并且其中NO 2和O 3都可还原，从而产生电流; 作为碳电极的第二工作电极，其中NO 2可还原，从而产生电流; 和邻近第二工作电极的O 3过滤器，并且所述装置被配置为使得在操作中，第一工作电极和O 3过滤器平行地暴露于样品气体。

7. 发明授权

EP1039292B1 Method of detecting the concentration of carbon dioxide in a gas mixture 有权
标题翻译：一种用于确定在气体混合物中二氧化碳的浓度的方法
公开(公告)号：EP1039292B1
公开(公告)日：2009-05-13
申请号：EP00302216.7
申请日：2000-03-17
申请人： Alphasense Limited
发明人： Hitchman, Michael L. , Park, Migeun
IPC分类号： G01N27/407 , G01N33/00
CPC分类号： G01N27/4074

8. 发明公开

EP2026064A2 Flue Gas Analyser comprising an electrochemical oxygen sensor 有权
标题翻译： Rauchgasanalysiervorrichtung包括电化学氧传感器
公开(公告)号：EP2026064A2
公开(公告)日：2009-02-18
申请号：EP08161506.4
申请日：2008-07-30
申请人： Alphasense Limited
发明人： Saffell, John Robert , Dawson, Darryl Hirst
IPC分类号： G01N27/49 , G01N33/00
CPC分类号： G01N27/404 , G01N33/0014
摘要： A flue gas analyser for measuring the concentration of oxygen in flue gas, comprising an electrochemical oxygen sensor and water vapour removing means for reducing the relative humidity of received gas and/or nitrogen-containing-gas removing means for removing from received gas one or more gaseous species comprising nitrogen and oxygen which are either nitrogen dioxide, or formed from nitrogen dioxide in the presence of sufficient water vapour, which would otherwise lead to damage of the electrochemical oxygen sensor.

9. 发明公开

EP1039292A3 Gas sensor 有权
标题翻译：气体传感器
公开(公告)号：EP1039292A3
公开(公告)日：2004-12-29
申请号：EP00302216.7
申请日：2000-03-17
申请人： Alphasense Limited
发明人： Hitchman, Michael L. , Park, Migeun
IPC分类号： G01N27/407 , G01N33/00
CPC分类号： G01N27/4074
摘要： A gas sensor comprising an electrolytic cell having detecting and reference electrodes connected by a solid electrolyte. In a first embodiment, both electrodes comprise Ag 2 CO 3 and Ag 4 RbI 5 , and the electrolyte is Ag 4 RbI 5 , the reference electrode being in contact with a reference gas. In a second embodiment, the reference electrode is a silver electrode and no reference gas is needed. The sensor is operable at room temperature to measure CO 2 concentrations, and is relatively unaffected by water vapour.
摘要翻译：一种气体传感器，包括具有由固体电解质连接的检测电极和参考电极的电解池。在第一实施例中，两个电极都包含Ag 2 CO 3和Ag 4 Rb 5，并且电解质是Ag 4 Rb 15，参考电极与参考气体接触。在第二实施例中，参考电极是银电极并且不需要参考气体。该传感器可在室温下操作以测量CO2浓度，并且相对不受水蒸气影响。

10. 发明公开

EP1039292A2 Gas sensor 有权
标题翻译：一种用于确定在气体混合物中二氧化碳的浓度的方法
公开(公告)号：EP1039292A2
公开(公告)日：2000-09-27
申请号：EP00302216.7
申请日：2000-03-17
申请人： Alphasense Limited
发明人： Hitchman, Michael L. , Park, Migeun
IPC分类号： G01N27/407
CPC分类号： G01N27/4074
摘要： A gas sensor comprising an electrolytic cell having detecting and reference electrodes connected by a solid electrolyte. In a first embodiment, both electrodes comprise Ag 2 CO 3 and Ag 4 RbI 5 , and the electrolyte is Ag 4 RbI 5 , the reference electrode being in contact with a reference gas. In a second embodiment, the reference electrode is a silver electrode and no reference gas is needed. The sensor is operable at room temperature to measure CO 2 concentrations, and is relatively unaffected by water vapour.
摘要翻译：一种气体传感器，包括：具有检测由固体电解质连接电解槽和参考电极。在第一个，实施例两个电极包括Ag2CO3和Ag4RbI5，并且电解质是Ag4RbI5，参考电极在与参考气体接触。在第二个实施方案中，参考电极是银电极，并且不需要参比气体。所述传感器可操作在室温下测量CO2浓度，并且是由水蒸汽相对不受影响。

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