Sensor element for determining a physical property of a...

Details Sensor element for determining a physical property of a... Sensor element for determining a physical property of a...

2011-05-17

2011-05-17

Nguyen, Nam X (Department: 1724)

Chemistry: electrical and wave energy

Apparatus

Electrolytic

C204S424000, C204S428000, C205S783500, C205S784000, C073S023310, C073S023320

Reexamination Certificate

active

07943025

ABSTRACT:
A sensor element is provided for determining a physical property of a measuring gas, especially of the concentration of at least one gas component in the measuring gas, which has at least one ceramic layer, a diffusion barrier adjoining the at least one ceramic layer and at least one electrode that is exposed to the measuring gas diffusing through the diffusion barrier. In order to reduce the production variations with respect to the static pressure dependence and the limiting current of the diffusion barrier), the proportions of silicon in the diffusion barrier and in the at least one ceramic layer are approximately equal and differ by not more than 1 wt. %.

REFERENCES:
patent: 4857165 (1989-08-01), Ishiguro et al.
patent: 2003/0205078 (2003-11-01), Hasei et al.
patent: 2004/0007462 (2004-01-01), Hotta et al.
patent: 10305856 (2004-09-01), None

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