Electrochemical oxygen sensor, particularly for exhaust gases fr

Details Electrochemical oxygen sensor, particularly for exhaust gases fr Electrochemical oxygen sensor, particularly for exhaust gases fr

1981-06-19

1984-03-20

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204421, 204424, 204428, 123536, 123568, G01N 2746

Patent

active

044379714

ABSTRACT:
To prevent signal degradation of a sensing element, which may be a potentiometric or a polarographic sensor, having a reference electrode exposed to ambient air, the reference electrode (22) is placed within a chamber (21) which has included therein granules (39) of a material inert with respect to oxygen and having a surface hardness at least as hard as the reference electrode (22) so that, upon subjection of the sensor, when coupled to the exhaust system of an internal combustion engine, to vibrations, shocks and jolts, the granules will move in the chamber, rub against the electrode, and hence keep the electrode surface activated and free from contamination which may have penetrated with ambient air.

REFERENCES:
patent: 3043764 (1962-07-01), Harvey
patent: 3464008 (1969-08-01), Meysson et al.
patent: 3883408 (1975-05-01), Kim et al.
patent: 4046712 (1977-09-01), Cairns et al.
patent: 4116797 (1978-09-01), Akatsuka
patent: 4172247 (1979-10-01), Ikeura
patent: 4175019 (1979-11-01), Murphy
patent: 4212273 (1980-07-01), Maruoka

Affiliated with

Also associated with

Rating

Electrochemical oxygen sensor, particularly for exhaust gases fr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrochemical oxygen sensor, particularly for exhaust gases fr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochemical oxygen sensor, particularly for exhaust gases fr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1602714