公开(公告)号：US20180259478A1

公开(公告)日：2018-09-13

申请号：US15451934

申请日：2017-03-07

申请人： NGK SPARK PLUG CO. LTD. ,  SPIROSURE, INC.

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.

公开(公告)号：US20180249929A1

公开(公告)日：2018-09-06

申请号：US15448672

申请日：2017-03-03

申请人： NGK SPARK PLUG CO., LTD. ,  SPIROSURE, INC.

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.

公开(公告)号：US20180348155A1

公开(公告)日：2018-12-06

申请号：US15611979

申请日：2017-06-02

申请人： NGK SPARK PLUG CO., LTD. ,  Spirosure, Inc.

发明人： Kazuto MORITA ,  Hiroyuki NISHIYAMA ,  Takahiro YOKOYAMA ,  Masahiro TAKAKURA ,  Tatsunori ITO ,  Takahisa USHIDA ,  Solomon SSENYANGE ,  Brian AWABDY ,  Ryan Richard LEARD

IPC分类号： G01N27/12 ,  G01N33/00

摘要： A gas detection apparatus for detecting the concentration of a first gas component contained in a gas under measurement includes a gas conversion section for convening the first gas component to a second gas component, a gas detection section whose electrical characteristics change with a change in the concentration of the second gas component when the gas detection section is in an activated state, and a detection state setting section. During a detection period, the detection state setting section sets the state of gas detection by the gas detection section to a detection executed state in which the gas detection section can detect the second gas component. During periods which are not the detection period, the detection state setting section sets the state of gas detection by the gas detection section to a detection suspended state in which the gas detection section does not detect the second gas component.

公开(公告)号：US20180252670A1

公开(公告)日：2018-09-06

申请号：US15448694

申请日：2017-03-03

申请人： NGK SPARK PLUG CO., LTD. ,  SPIROSURE, INC.

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.