公开(公告)号：US20240175853A1

公开(公告)日：2024-05-30

申请号：US18549403

申请日：2022-03-04

申请人： ARYBALLE

发明人： Pierre Maho

IPC分类号： G01N33/00 ,  G01N21/552

CPC分类号： G01N33/0059 ,  G01N21/553 ,  G01N33/0021

摘要： A method for characterizing an analyte A present in a gas sample using an electronic nose including M sensitive site, a parasitic chemical species P being present in the gas sample, the method include: a phase 100 of acquiring N first signatures, where N>1, of the gas samples containing the analyte A and the parasitic species P, the gas samples exhibiting deviations ΔcP(n) which differ from one gas sample to the next; a phase 200 of solving an optimization problem so as to obtain N corrected signatures, characterising the analyte A present in the N gas samples, from the N first signatures, by optimizing to objective functions.

公开(公告)号：US11802859B2

公开(公告)日：2023-10-31

申请号：US17120239

申请日：2020-12-13

申请人： University of Electronic Science and Technology of China

发明人： Yuanjie Su ,  Qichen Gong ,  Yanmeng Chen ,  Guangzhong Xie ,  Huiling Tai ,  Xiaosong Du ,  Yadong Jiang

IPC分类号： G01N33/00 ,  G01N27/12 ,  H02N1/04

CPC分类号： G01N33/0059 ,  G01N27/12 ,  G01N27/122 ,  G01N27/125 ,  G01N33/0027 ,  G01N33/0031 ,  G01N33/0047 ,  H02N1/04 ,  G01N27/128 ,  G01N33/0009

摘要： The disclosure relates to a wireless self-powered gas sensor based on electromagnetic oscillations triggered by external forces and its fabrication method. The sensor includes a gas test chamber, a first friction layer, a second friction layer, an interdigital electrode, a gas-sensitive material, an air inlet, an air outlet and leads. The gas sensor of the disclosure is an integrated detection system of “environmental energy collection—wireless energy transmission—active spontaneous detection” that can be driven simultaneously only by external mechanical movement, and can work independently without external power supply. The first friction layer and the second friction layer are arranged outside the gas test chamber. The frictional motion will not interfere with the flow field of the test chamber and the gas molecule absorption and desorption, which ensures the stability of gas detection to the greatest extent.

公开(公告)号：US09910022B2

公开(公告)日：2018-03-06

申请号：US14802390

申请日：2015-07-17

申请人： S. Howard Kim

发明人： S. Howard Kim

IPC分类号： G01N24/00 ,  G01N33/00

CPC分类号： G01N33/0039 ,  G01N33/0052 ,  G01N33/0059 ,  Y02A50/247

摘要： The present invention provides a capability of Ion Mobility Spectrometry/Atmospheric Pressure Ionization Mass Spectrometry (IMS/MS) in the negative ion mode for Ozone detection and methods for ozone layer depletion monitoring in laboratory environment. Ammonium hydroxide vapors, as a dopant chemical, introduced to the inlet system of the IMS/MS interfaced with the reaction sphere enables ozone ionized to be O3−. The data obtainable from proposed methods show how ozone is depleted and which compound affect the most for O3 destruction among the O3 depletion substances of Chloro Fluoro Carbons (CFCs), Hydro Fluoro Carbons (HFCs), Hydro Chloro Fluoro Carbons (HCFCs), Hydro Chloro Bromo Carbons (HCBCs), and Hydro Chloro lodo Carbons (HClCs). Based on the results obtainable, more likely the IMS alone system without coupling with the mass spectrometer (IMS/MS) will rather be selected to develop as a spatial real time ozone layer depletion monitor. Real time monitoring device of ozone concentration in ambient atmospheric conditions can also be developed with this technique.

公开(公告)号：US20170016868A1

公开(公告)日：2017-01-19

申请号：US14802390

申请日：2015-07-17

申请人： Sanghwan Howard Kim

发明人： Sanghwan Howard Kim

IPC分类号： G01N33/00 ,  G01N27/62 ,  H01J49/00

CPC分类号： G01N33/0039 ,  G01N33/0052 ,  G01N33/0059 ,  Y02A50/247

摘要： The present invention provides a capability of Ion Mobility Spectrometry/Atmospheric Pressure Ionization Mass Spectrometry (IMS/MS) in the negative ion mode for Ozone detection and methods for ozone layer depletion monitoring in laboratory environment. Ammonium hydroxide vapors, as a dopant chemical, introduced to the inlet system of the IMS/MS interfaced with the reaction sphere enables ozone ionized to be O3−. The data obtainable from proposed methods show how ozone is depleted and which compound affect the most for O3 destruction among the O3 depletion substances of Chloro Fluoro Carbons (CFCs), Hydro Fluoro Carbons (HFCs), Hydro Chloro Fluoro Carbons (HCFCs), Hydro Chloro Bromo Carbons (HCBCs), and Hydro Chloro lodo Carbons (HClCs). Based on the results obtainable, more likely the IMS alone system without coupling with the mass spectrometer (IMS/MS) will rather be selected to develop as a spatial real time ozone layer depletion monitor. Real time monitoring device of ozone concentration in ambient atmospheric conditions can also be developed with this technique.

摘要翻译： 本发明提供了用于臭氧检测的负离子模式的离子迁移光谱/大气压电离质谱（IMS / MS）的能力以及在实验室环境中臭氧层耗尽监测的方法。 作为掺杂剂化学品的氢氧化铵蒸气被引入到与反应球体接口的IMS / MS的入口系统中，使得臭氧电离成为O3-。 从提出的方法可以获得的数据显示臭氧消耗如何，哪些化合物对氯氟烃（CFC），氟氟化碳（HFC），氢氯氟烃（HCFCs），氢氯化物 溴代碳氢化合物（HCBCs）和氢氯代碳氢化合物（HClC）。 基于可获得的结果，更有可能选择不与质谱仪（IMS / MS）耦合的IMS单独系统作为空间实时臭氧层耗尽监测器开发。 也可以用这种技术开发环境大气条件下臭氧浓度的实时监测装置。

公开(公告)号：US09329148B2

公开(公告)日：2016-05-03

申请号：US14532521

申请日：2014-11-04

申请人： University of Connecticut

发明人： Yu Lei ,  Yixin Liu

IPC分类号： H01L29/12 ,  G01N27/12 ,  B82Y15/00 ,  G01N33/00 ,  B82Y30/00

CPC分类号： G01N27/127 ,  B82Y15/00 ,  B82Y30/00 ,  G01N33/004 ,  G01N33/0059 ,  Y10S977/955

摘要： Exemplary embodiments of the present disclosure relate to sensor technology for gases, and more specifically, to nanofiber based gas sensors capable of operating at high temperatures (e.g., hundreds, thousands of degrees Celsius). In exemplary embodiments, a combination of p-type and n-type nanofiber materials can be combined to create gas sensors that can be used to detect reducing gases with enhanced selectivity/sensitivity.

摘要翻译： 本公开的示例性实施例涉及用于气体的传感器技术，更具体地，涉及能够在高温（例如，数百，数千摄氏度）下操作的基于纳米纤维的气体传感器。 在示例性实施例中，p型和n型纳米纤维材料的组合可以组合以产生可用于以增强的选择性/灵敏度检测还原气体的气体传感器。

公开(公告)号：US08720251B2

公开(公告)日：2014-05-13

申请号：US13206882

申请日：2011-08-10

申请人： Geoffrey Stephen Henshaw ,  John Wagner ,  Simon Naisbitt ,  Bryon Wright

发明人： Geoffrey Stephen Henshaw ,  John Wagner ,  Simon Naisbitt ,  Bryon Wright

IPC分类号： G01N27/02

CPC分类号： G01N27/124 ,  G01N33/0037 ,  G01N33/0059 ,  Y02A50/245

摘要： A gas detection system comprising a gas sensor having a detection surface for detecting an analyte gas, the accuracy of detection being degraded by the presence of an unwanted gas at the sensor, and a thermal scrubber layer directly adjacent said detection surface of the gas sensor defining a diffusion path for the analyte and unwanted gases to traverse through to the detection surface, the diffusion path having a sufficient length and the thermal scrubber being heated by the heater to a sufficient temperature capable of at least partially thermally decomposing the unwanted gas prior to contacting the detection surface to thereby improve the accuracy of the sensor. The system further comprises a heater that is preferably arranged to heat both the detection surface and the thermal scrubber. The invention is particularly useful for improving the performance of an NO2 gas sensor in the presence of ozone (O3).

摘要翻译： 一种气体检测系统，包括具有用于检测分析物气体的检测表面的气体传感器，通过在传感器处存在不需要的气体而降低检测精度，以及直接邻近所述气体传感器的检测表面定义的热洗涤器层 用于分析物和不需要的气体穿过检测表面的扩散路径，扩散路径具有足够的长度，并且热洗涤器被加热器加热至能够在接触之前至少部分地热分解不想要的气体的足够温度 检测表面，从而提高传感器的精度。 该系统还包括加热器，其优选地布置成加热检测表面和热洗涤器两者。 本发明特别可用于在存在臭氧（O 3）的情况下改善NO 2气体传感器的性能。

公开(公告)号：US20130086975A1

公开(公告)日：2013-04-11

申请号：US13607079

申请日：2012-09-07

申请人： Vikas Lakhotia ,  G. Jordan Maclay

发明人： Vikas Lakhotia ,  G. Jordan Maclay

IPC分类号： G01N33/00

CPC分类号： G01N33/005 ,  G01N27/123 ,  G01N33/0059

摘要： A method can be performed by adjusting a temperature of a gas sensor to a first temperature value for a first period of time and a second temperature value for a second period of time. The gas sensor signal may be measured during the first period of time to determine a first signal value and during the second period of time to determine a second value. Then, concentration information for at least one gas is calculated according to the first signal value and the second signal value. While the gas sensor signal may include information about a presence of a first gas and a second gas, the concentration information for the at least one gas may not substantially include concentration information for the second gas.

摘要翻译： 可以通过将气体传感器的温度调节到第一时间段的第一温度值和第二时间段的第二温度值来执行方法。 可以在第一时间段期间测量气体传感器信号以确定第一信号值，并且在第二时间段期间确定第二值。 然后，根据第一信号值和第二信号值计算至少一种气体的浓度信息。 虽然气体传感器信号可以包括关于第一气体和第二气体的存在的信息，但是至少一种气体的浓度信息可能基本上不包括第二气体的浓度信息。

公开(公告)号：US08265881B1

公开(公告)日：2012-09-11

申请号：US13269368

申请日：2011-10-07

申请人： Vikas Lakhotia ,  G. Jordan Maclay

发明人： Vikas Lakhotia ,  G. Jordan Maclay

IPC分类号： G01N27/26 ,  G06F17/40

CPC分类号： G01N33/005 ,  G01N27/123 ,  G01N33/0059

摘要： A temperature of a gas sensor may be adjusted to a first temperature value for a first period of time and a second temperature value for a second period of time. A signal of the gas sensor may be measured during the first period of time to determine a first signal value and during the second period of time to determine a second value. Then, concentration information for at least one gas is calculated according to the first signal value and the second signal value. While the gas sensor signal may include information about a presence of a first gas and a second gas, the concentration information for the at least one gas may not substantially include concentration information for the second gas.

摘要翻译： 气体传感器的温度可以在第一时间段内被调节到第一温度值，并且可以在第二时间段内被调节到第二温度值。 可以在第一时间段期间测量气体传感器的信号以确定第一信号值，并且在第二时间段期间确定第二值。 然后，根据第一信号值和第二信号值计算至少一种气体的浓度信息。 虽然气体传感器信号可以包括关于第一气体和第二气体的存在的信息，但是至少一种气体的浓度信息可能基本上不包括第二气体的浓度信息。

公开(公告)号：US20110001625A1

公开(公告)日：2011-01-06

申请号：US12881334

申请日：2010-09-14

申请人： Kevin John Reilly, JR. ,  Mario Suttora

发明人： Kevin John Reilly, JR. ,  Mario Suttora

IPC分类号： G08B17/10 ,  G01N33/497

CPC分类号： G01N33/497 ,  A61B5/097 ,  A61B5/411 ,  G01N33/0031 ,  G01N33/004 ,  G01N33/0059 ,  G01N2033/4975 ,  Y02A50/243

摘要： The subject invention is directed to a breath analyzer which is capable of detecting toxic gas levels from breath analysis. The subject invention includes a mouthpiece which is in communication with a plurality of discrete chambers, such as first and second discrete chambers, each being provided with a separate probe for breath analysis. The probes are connected to analyzers for determining detected levels of gas. In a first embodiment, a first probe may be provided for carbon monoxide detection with a second probe being provided for hydrogen cyanide detection. Advantageously, with this arrangement, breath analysis may be conducted on-site, for example at the site of a fire, to quickly and simultaneously determine carbon monoxide and hydrogen cyanide levels in a person's blood stream. In a second embodiment, a first probe may be provided for detection of carbon monoxide and a second probe may be provided for detection of hydrogen. With this arrangement, a calibrated correction of measured carbon monoxide data can be made to correct for improperly detected hydrogen. As such, a highly accurate on-site measurement for carbon monoxide can be achieved.

摘要翻译： 本发明涉及一种能够从呼吸分析中检测有毒气体水平的呼吸分析仪。 本发明包括一个与多个离散的室连通的接口，例如第一和第二离散室，每个腔分别设有用于呼吸分析的独立探头。 探头连接到分析仪，用于确定检测到的气体水平。 在第一实施例中，可以提供用于一氧化碳检测的第一探针，其中提供用于氰化氢检测的第二探针。 有利地，通过这种布置，可以在现场，例如在火灾现场进行呼吸分析，以快速并同时测定人血液中的一氧化碳和氰化氢水平。 在第二实施例中，可以提供用于检测一氧化碳的第一探针，并且可以提供用于检测氢的第二探针。 通过这种布置，可以对被测量的一氧化碳数据进行校准校正，以校正不正确检测到的氢。 因此，可以实现对一氧化碳的高精度现场测量。

公开(公告)号：US20090071230A1

公开(公告)日：2009-03-19

申请号：US12159089

申请日：2006-12-22

申请人： Bruno Aubert

发明人： Bruno Aubert

IPC分类号： G01N33/00 ,  G08B21/14

CPC分类号： G08B21/14 ,  A61B5/411 ,  A61B2560/0242 ,  G01N33/0059 ,  G01N33/006 ,  G01N33/0063

摘要： The method consists in, first, circulating the air in which the content of a specific pollutant is to be measured through or over materials that reversibly absorb compounds in the air that interfere with the measurement of pollution. These absorbent materials are employed in the form of self-fixing patches or membranes that can be disposed of after use and are placed between the air to be measured and the measurement means. These patches or membranes can be used for all types of measurement means, such as electronic sensors or calorimetric indicators (in which case the membrane will advantageously be transparent). This actual pre-treatment of the air will thus allow reliable, reproducible measurement irrespective of the environmental conditions (humidity, presence of other pollutants, etc.). For humidity, for example, the membrane will consist of silica gel or cotton wool. A first application is an individualized warning device that can be carried on the reverse of a jacket or on the wrist, for alerting asthmatics to the presence of a peak in ozone pollution or sulphur and nitrogen oxide pollution.

摘要翻译： 该方法首先是通过可逆地吸收干扰测量污染物的空气中的化合物的材料或其上的物质循环其中要测量特定污染物的含量的空气。 这些吸收材料以自固定贴片或膜的形式使用，其可以在使用后被处置并放置在待测量的空气和测量装置之间。 这些贴片或膜可用于所有类型的测量装置，例如电子传感器或量热指示器（在这种情况下，膜将有利地是透明的）。 因此，无论环境条件（湿度，其他污染物的存在等）如何，这种空气的实际预处理因此将允许可靠，可再现的测量。 对于湿度，例如，膜将由硅胶或棉绒制成。 第一个应用是个性化的警告装置，可以在护套或手腕上反转携带，用于提示哮喘患者存在臭氧污染或硫和氮氧化物污染的高峰。