Oxygen sensor

Details Oxygen sensor Oxygen sensor

1998-05-12

2000-05-16

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204426, 248511, 248523, G01N 27407

Patent

active

060632496

ABSTRACT:
An oxygen sensor includes an elongated planar sensing element and a lower insulator sealably mounted within a tubular shield. The sensing element extends through a central opening disposed in the lower insulator into a sensing chamber. An annular glass support bonded at an end of the insulator is in non-bonding contact with the sensing end of the sensing element. A portion of the sensing element adjacent the glass support is coated with a carbon-based ink to prevent bonding of the glass support to the sensing element. In an alternative, a metal foil support may extend between the sensing element and the glass support. The metal support includes a plurality of dimples disposed on opposing walls that extend inwardly to contact and non-bindingly support the sensing element therein.

REFERENCES:
patent: 5817920 (1998-10-01), Kuisell et al.
patent: 5886248 (1999-03-01), Paulus et al.

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