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公开(公告)号：US20180271403A1
公开(公告)日：2018-09-27
申请号：US15468547
申请日：2017-03-24
发明人： Keizo FURUSAKI , Masatoshi UEKI , Kenji NISHIO , Ryan LEARD , Solomon SSENYANGE
IPC分类号： A61B5/08 , G01N33/00 , G01N33/497 , G01N27/16 , G01N27/407 , G01N27/406 , H05B3/02 , H05B3/06 , H05B3/12 , H05B3/16
CPC分类号： A61B5/082 , A61B10/00 , A61B2010/0087 , G01N27/16 , G01N27/4067 , G01N27/4074 , G01N27/4076 , G01N33/0037 , G01N33/497 , G01N2033/4975 , H05B3/0014 , H05B3/06 , H05B3/12 , H05B3/16 , H05B3/265 , Y02A50/245
摘要： A breath sensor (1) includes a heat exchange portion (41) that allows heat exchange between breath discharged from a second chamber C2 and breath introduced into a first chamber C1. Therefore, breath introduced into the first chamber C1 can be heated by breath discharged from the second chamber C2, to increase the temperature of the introduced breath. Since the temperature of the breath is increased, an effect of reducing power consumption of a heater (29c) in heating a conversion portion (21) and a detection portion (29a) is realized. The heater (29c) heats both the conversion portion (21) and the detection portion (29a) to a temperature in an operation or activation temperature range. Further, power consumption for heating to an operation temperature can be reduced by preheating the introduced breath as described above.
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公开(公告)号：US20180259478A1
公开(公告)日：2018-09-13
申请号：US15451934
申请日：2017-03-07
发明人： Koji OMORI , Tatsunori ITO , Hiroyuki NISHIYAMA , Masahiro TAKAKURA , Solomon SSENYANGE , Ryan LEARD
IPC分类号： G01N27/407 , G01N27/406
CPC分类号： G01N27/4075 , G01N27/4067 , G01N27/407 , G01N33/0013 , G01N33/0037 , G01N33/497
摘要： A gas sensor including a conversion section for converting NO contained in a gas under measurement to NO2, and a detection section for detecting NO2 concentration in the gas under measurement after having passed through the conversion section. The conversion section includes a substrate portion which defines a flow passage for the gas under measurement, and a porous catalyst layer disposed on a surface of the substrate portion which converts NO to NO2. The flow passage has a hollow space in which the catalyst layer is not present and through which the gas under measurement flows. The catalyst layer has a thickness of 4 to 300 μm as measured between the substrate portion and an outermost surface of the catalyst layer, the outermost surface being exposed to the hollow space.
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公开(公告)号：US20180249929A1
公开(公告)日：2018-09-06
申请号：US15448672
申请日：2017-03-03
发明人： Shinichi NAKAGAWA , Tatsunori ITO , Hiroyuki NISHIYAMA , Masahiro TAKAKURA , Masatoshi UEKI , Solomon SSENYANGE , Ryan LEARD
IPC分类号： A61B5/08 , A61B5/097 , G01N33/497
CPC分类号： A61B5/082 , A61B5/097 , G01N33/497 , G01N2033/4975
摘要： A breath sensor including a main body into which breath can be introduced, a conversion section for converting a gas component contained in the breath to a specific component, and a sensing section for detecting the specific component. The sensing section constitutes a first unit including an integrated detection element and a first heater. The conversion section constitutes a second unit including an integrated catalyst and a second heater. The first unit and the second unit are disposed inside the main body so as to be separated from each other with a gap therebetween, or are in contact with each other via a heat insulating member. The first unit and second unit are in communication with each other through a pipe that allows the breath to pass therethrough, and the pipe is partially bent.
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公开(公告)号：US20180252667A1
公开(公告)日：2018-09-06
申请号：US15448704
申请日：2017-03-03
IPC分类号： G01N27/406
CPC分类号： G01N27/4067
摘要： A gas sensor including a plate-shaped base substrate and three or more mixed-potential-type sensor elements disposed at predetermined intervals on a main face of the base substrate and electrically connected in series. A single heat generation resistor for heating the mixed-potential-type sensor elements and a temperature sensor for measuring the temperature of the base substrate are embedded in the base substrate or disposed on a face of the base substrate opposite the main face. The heat generation resistor has a pattern which overlaps the mixed-potential-type sensor elements, and the maximum value of temperature differences among the mixed-potential-type sensor elements, produced as a result of energization and control of the mixed-potential-type sensor elements to a target temperature using the temperature sensor, falls within 5% of the target temperature.
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公开(公告)号：US20180275116A1
公开(公告)日：2018-09-27
申请号：US15467301
申请日：2017-03-23
发明人： Takayuki KUMAZAKI , Masatoshi UEKI , Takafumi SHICHIDA , Kenji NISHIO , Tsuyoshi INOUE , Shigeya AOYAMA , Solomon SSENYANGE , Ryan LEARD
IPC分类号： G01N33/497 , G01N27/406 , G01N27/407 , G01N33/00
CPC分类号： G01N33/497 , A61B5/082 , A61B5/097 , G01N33/0037 , G01N2033/4975 , Y02A50/245
摘要： A gas sensor including an adjustment unit having a conversion element for converting a gas component contained in exhaled breath introduced into a first chamber to a particular component, a sensor unit having a second chamber and including a detection element, a ceramic wiring board electrically connected to the detection element, and a single heater for heating the conversion element and the detection element. The ceramic wiring board has an opening, and a ceramic thin plate is stacked on the ceramic wiring board to cover the opening. The ceramic thin plate partially constitutes the adjustment unit and the sensor unit and separates the first chamber and the second chamber from each other. The adjustment unit, the sensor unit, and the heater are integrated in such a manner that the adjustment unit and the sensor unit are thermally coupled through the ceramic thin plate.
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公开(公告)号：US20180252670A1
公开(公告)日：2018-09-06
申请号：US15448694
申请日：2017-03-03
发明人： Koji OMORI , Masahiro TAKAKURA , Solomon SSENYANGE , Ryan LEARD
IPC分类号： G01N27/407
CPC分类号： G01N27/4077 , G01N27/4074 , G01N27/4075
摘要： A mixed-potential-type sensor for measuring the concentration of nitrogen oxide contained in a gas under measurement including a solid electrolyte layer having oxygen-ion conductivity, and a pair of porous electrodes formed thereon. One electrode is covered with a first layer containing tungsten oxide as a main component. The other electrode is covered with a gas impermeable second layer. The second layer is in contact with the other electrode without intervention of the tungsten oxide component. The solid electrolyte layer is porous and allows the gas under measurement to permeate from an externally exposed surface of the solid electrolyte layer to the other electrode. The concentration of the nitrogen oxide is detected from a potential difference developed between the electrodes.
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