1985-02-01

Progress in Lead Tolerant Titania Exhaust Gas Oxygen Sensors 850381

This paper discusses the recently developed titania sensors which are now under production in the Japanese market. The sensor's submersible design allows for more flexibility of installation, and since the titania thick film sensor is less sensitive to lead poisoning, its use in both the United States, where lead contamination in unleaded gas can still be observed, and in Europe, where leaded gasoline may still be available in certain countries, indicates the need for an inexpensive, mass produced sensor. The titania sensors exhibit the following characteristics: They are compact in size and completely submersible; they show a tolerance towards lead poisoning; they experience less lambda shifting; less deterioration, and acute sensitivity.This paper offers an attractive alternative to the zirconia sensor which many vehicles currently use because of past success in its development.

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