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    • 4. 发明授权
    • Nitrogen-oxide gas sensor with long signal stability
    • 氮氧化物气体传感器具有长信号稳定性
    • US08399883B2
    • 2013-03-19
    • US13119584
    • 2009-09-30
    • Jin Su ParkByung Young YoonJung Won ParkJung Hwan ChoSang Beom Kim
    • Jin Su ParkByung Young YoonJung Won ParkJung Hwan ChoSang Beom Kim
    • G01N27/406
    • G01N27/4074G01N27/4065
    • The present invention provides a nitrogen-oxide gas sensor that is able to measure nitric oxide and nitrogen dioxide at the same time and ensure measurement accuracy and long stability. For these purposes, the nitrogen-oxide gas sensor includes: an oxide ion conductive solid electrolyte; a primary film that contacts the solid electrolyte and is made of a p-type semi-conductor metal oxide; a secondary film that contacts the solid electrolyte and is made of a p-type semiconductor metal oxide; an n-type semiconductor metal oxide that is included in at least one of the primary and secondary films; a power source that applies electric power to the primary and secondary films by electrically connecting a primary node to the primary film and a secondary node to the secondary film; and a measurement unit that measures the electric potential difference between the primary and secondary nodes.
    • 本发明提供一种氮氧化物气体传感器,其能够同时测量一氧化氮和二氧化氮,并且确保测量精度和长的稳定性。 为了这些目的,氮氧化物气体传感器包括:氧化物离子导电固体电解质; 与固体电解质接触并由p型半导体金属氧化物制成的初级膜; 与固体电解质接触并由p型半导体金属氧化物制成的二次膜; 包含在初级膜和次级膜中的至少一种中的n型半导体金属氧化物; 电源,其通过将主节点与初级膜电连接到次级膜和次级节点而向初级膜和次级膜施加电力; 以及测量单元,其测量主节点和次节点之间的电位差。