Oxygen concentration sensor element

Details Oxygen concentration sensor element Oxygen concentration sensor element

1996-01-11

1997-11-11

Bell, Bruce F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204425, G01N 2726

Patent

active

056859643

ABSTRACT:
a limiting current type oxygen concentration sensor element includes a measured gas side electrode formed at one side of a solid electrolyte, and a diffusion resistance portion formed on the measured gas side electrode to provide diffusion resistance to passing measured gas therein. The diffusion resistance portion includes a concave portion formed at a position at least corresponding to a position of the measured gas side electrode. In the concave portion, a porous trap layer is disposed to trap contamination in measured gas. The side wall of the concave portion contacts with the trap layer. The area of a contact surface becomes larger than that without the concave portion, which can effectively prevent the trap layer from being peeled off and dropping down. The trap layer can be easily made thicker. By changing the depth of the concave portion appropriately, diffusion resistance of the diffusion resistance portion can be easily adjusted.

REFERENCES:
patent: 4402820 (1983-09-01), Sano et al.
patent: 4476008 (1984-10-01), Sano et al.
patent: 4569748 (1986-02-01), Yamakawa et al.
patent: 4595485 (1986-06-01), Takahashi et al.
patent: 4716760 (1988-01-01), Osuga et al.
patent: 5160598 (1992-11-01), Sawada et al.
patent: 5238549 (1993-08-01), Makino et al.
patent: 5505837 (1996-04-01), Friese et al.

Affiliated with

Also associated with

Rating

Oxygen concentration sensor element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxygen concentration sensor element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen concentration sensor element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1225864