Dew sensor
    1.
    发明公开
    Dew sensor 失效
    露点传感器。

    公开(公告)号:EP0078058A2

    公开(公告)日:1983-05-04

    申请号:EP82109934.8

    申请日:1982-10-27

    申请人: Hitachi, Ltd.

    IPC分类号: G01N27/04

    CPC分类号: G01N27/121

    摘要: A dew sensor of direct current type and resistance- lowering type with increasing humidity for quick and sharp detection of dewing is provided, which comprises a pair of counterposed electrodes, humidity-sensitive layer of insulating porous metal oxide with a porosity of 20 to 60% provided on and between the counterposed electrodes, and an organic polymer coating layer having a thickness of 0.05 to 2 µm provided on the humidity-sensitive layer.

    Gas detecting apparatus
    4.
    发明公开
    Gas detecting apparatus 失效
    Gasdetektorapparat。

    公开(公告)号:EP0089470A1

    公开(公告)日:1983-09-28

    申请号:EP83100833.9

    申请日:1983-01-28

    申请人: Hitachi, Ltd.

    IPC分类号: G01N33/00 G01N27/12

    CPC分类号: G01N27/122 G01N33/0031

    摘要: A gas detecting apparatus is disclosed in which detection outputs from a plurality of semiconductor gas detecting elements (2011, 2012, 2013) different in gas detection characteristic from each other and previously-obtained char acteristic values of the semiconductor gas detecting elements for a mixed gas are subjected to operational processing to detect one or more specified constituent gases contained in the mixed gas, and in which when the specified constituent gas is detected, the detection information Is announced by some means (2081,2082), and also the supply of gas is stopped (207) or a supply gas is diluted.

    Oxygen sensor element and process for producing the same
    10.
    发明公开
    Oxygen sensor element and process for producing the same 失效
    Sauerstoffühlerelementund Verfahren zum Herstellen desselben。

    公开(公告)号:EP0203351A1

    公开(公告)日:1986-12-03

    申请号:EP86105424.5

    申请日:1986-04-18

    申请人: HITACHI, LTD.

    IPC分类号: G01N27/417

    CPC分类号: G01N27/4071

    摘要: A solid electrolyte type oxygen sensor element having a built-in heater characterized by having an insulating layer including a heater therein on an electrode formed side of solid electrolyte plate is improved in adhesiveness when an oxide binder of Al 2 O 3 - SiO 2 - MgO system, or Al 2 O 3 - SiO 2 system is added to the insulating layer, the solid electrolyte plates or an insulating thin layer formed at an interface of the insulating layer and the solid electrolyte plate. When an intermediate layer is interposed between the insulating layer and the solid electrolyte plate, cracks caused by thermal stress can be prevented effectively.

    摘要翻译: 具有内置加热器的固体电解质型氧传感器元件,其特征在于在固体电解质板的电极形成侧具有包括加热器的绝缘层,当Al 2 O 3 -SiO 2 -MgO体系的氧化物粘合剂或Al 2 O 3 在绝缘层,固体电解质板或形成在绝缘层和固体电解质板的界面处的绝缘薄层之间加入SiO 2系。 当在绝缘层和固体电解质板之间插入中间层时,可以有效地防止由热应力引起的裂纹。