公开(公告)号：US4908119A

公开(公告)日：1990-03-13

申请号：US91964

申请日：1987-09-01

申请人： Toshitaka Saito ,  Hiromi Sano ,  Soji Ota ,  Syohei Udo

发明人： Toshitaka Saito ,  Hiromi Sano ,  Soji Ota ,  Syohei Udo

IPC分类号： G01N27/406 ,  G01N27/407 ,  G01N27/416

CPC分类号： G01N27/4077 ,  G01N27/4067

摘要： Outer air serving as a reference gas for determining oxygen concentration is guided to a hollow portion of a core. The core is formed in an insulating cylinder whose distal end is closed and whose proximal end is open to receive the reference gas. An opening is formed on the outer surface of the core, to communicate with the hollow portion. An oxygen concentration sensor element made of a solid-state electrolyte layer having first and second electrode layers one on each surface thereof is mounted such that it closes the opening. A sheet member made of an insulating sheet is wound around the sensor element mounted on the sensor element, and is fixed thereon. A window is formed in the sheet so as to expose the surface of the sensor element. A heater is formed around the window. Wiring layers respectively connected to both terminals of the heater are formed on the sheet. Wiring layers adapted to contact the first and second electrode layers of the sensor element are also formed on the sheet. The four wiring layers are respectively guided to grooves formed in the outer surface of the proximal end of the core. A protective layer in the form of a porous insulator is formed on the outer surface of the sheet member.

摘要翻译： 作为用于测定氧浓度的参考气体的外部空气被引导到芯的中空部分。 芯体形成在绝缘筒体中，其绝缘体的顶端封闭，其近端开口以接收参考气体。 在芯的外表面上形成有与中空部连通的开口。 由固体电解质层制成的氧浓度传感器元件，其在其每个表面上具有第一和第二电极层，以使其闭合开口。 由绝缘片制成的薄片构件缠绕在安装在传感器元件上的传感器元件上并固定在其上。 在片材中形成窗口以露出传感器元件的表面。 在窗户周围形成加热器。 分别连接到加热器的两个端子的接线层形成在片材上。 适于接触传感器元件的第一和第二电极层的接线层也形成在片材上。 四个布线层分别被引导到形成在芯的近端的外表面中的凹槽。 在片材的外表面上形成多孔绝缘体形式的保护层。