Chemical sensor for carbon monoxide detection

Details Chemical sensor for carbon monoxide detection Chemical sensor for carbon monoxide detection

1991-08-28

1993-10-12

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

73 2331, 340633, G08B 1710

Patent

active

052529495

ABSTRACT:
A ceramic sensor (12) comprising a thin film (14) of Cu.sub.1=x Mn.sub.2-x O.sub.4-y is provided that quantitatively measures the partial pressure of CO gas in a flowing system (22). The sensor is specific to CO gas and is negligibly affected by the presence of the common automobile exhaust vapors NO, H.sub.2 O, and CH.sub.4, within the operational temperature range from about 250.degree. to 450.degree. C. The CO sensor of the invention has other applications, such as monitoring CO levels in laboratories, mines, and industrial smoke stacks, and may be used in environments up to about 700.degree. C.

REFERENCES:
patent: 4968656 (1990-11-01), Fukuda et al.

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