公开(公告)号：US20120211362A1

公开(公告)日：2012-08-23

申请号：US13401221

申请日：2012-02-21

申请人： Masaki ONKAWA ,  Shigehiro OTSUKA ,  Seiji OYA ,  Satoshi TERAMOTO ,  Kuniharu TANAKA ,  Takeshi MITSUOKA

发明人： Masaki ONKAWA ,  Shigehiro OTSUKA ,  Seiji OYA ,  Satoshi TERAMOTO ,  Kuniharu TANAKA ,  Takeshi MITSUOKA

IPC分类号： G01N27/26

CPC分类号： G01N27/4077

摘要： There is provided a gas sensor element for detecting the concentration of a specific gas component in gas under measurement, which includes a plate-shaped element body and a porous protection layer. The element body has, at one end portion thereof, a gas sensing portion formed with a solid electrolyte substrate and a pair of electrodes. The porous protection layer has a porous structure formed of ceramic particles and surrounds at least the circumference of the one end portion of the element body. In the present invention, the porous protection layer has an inner region, an intermediate region and an outer region laminated together in order of mention from the element body toward the outside. The intermediate region has a porosity lower than those of the inner and outer regions. There is also provided a gas sensor with such a gas sensor element.

摘要翻译： 提供了一种气体传感器元件，用于检测测量气体中特定气体成分的浓度，包括板状元件体和多孔保护层。 元件体的一端具有形成有固体电解质基板和一对电极的气体检测部。 多孔保护层具有由陶瓷颗粒形成的多孔结构，并且至少包围元件主体的一个端部的周边。 在本发明中，多孔保护层具有从元件体朝向外侧依次层叠的内部区域，中间区域和外部区域。 中间区域的孔隙率低于内部和外部区域的孔隙率。 还提供了具有这种气体传感器元件的气体传感器。

公开(公告)号：US08992752B2

公开(公告)日：2015-03-31

申请号：US13401221

申请日：2012-02-21

申请人： Masaki Onkawa ,  Shigehiro Otsuka ,  Seiji Oya ,  Satoshi Teramoto ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

发明人： Masaki Onkawa ,  Shigehiro Otsuka ,  Seiji Oya ,  Satoshi Teramoto ,  Kuniharu Tanaka ,  Takeshi Mitsuoka

IPC分类号： G01N27/407

CPC分类号： G01N27/4077

摘要： There is provided a gas sensor element for detecting the concentration of a specific gas component in gas under measurement, which includes a plate-shaped element body and a porous protection layer. The element body has, at one end portion thereof, a gas sensing portion formed with a solid electrolyte substrate and a pair of electrodes. The porous protection layer has a porous structure formed of ceramic particles and surrounds at least the circumference of the one end portion of the element body. In the present invention, the porous protection layer has an inner region, an intermediate region and an outer region laminated together in order of mention from the element body toward the outside. The intermediate region has a porosity lower than those of the inner and outer regions. There is also provided a gas sensor with such a gas sensor element.

摘要翻译： 提供了一种气体传感器元件，用于检测测量气体中特定气体成分的浓度，包括板状元件体和多孔保护层。 元件体的一端具有形成有固体电解质基板和一对电极的气体检测部。 多孔保护层具有由陶瓷颗粒形成的多孔结构，并且至少包围元件主体的一个端部的周边。 在本发明中，多孔保护层具有从元件体朝向外侧依次层叠的内部区域，中间区域和外部区域。 中间区域的孔隙率低于内部和外部区域的孔隙率。 还提供了具有这种气体传感器元件的气体传感器。