Discriminating fire sensor

Details Discriminating fire sensor Discriminating fire sensor

1977-05-20

1978-07-18

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250340, 250349, G01J 100

Patent

active

041017676

ABSTRACT:
A discriminating fire sensor includes detecting means which discriminates between hydrocarbon fires desired to be detected and high-energy exploding rounds of ammunition without causing a hydrocarbon fire. Also, the system distinguishes between a hydrocarbon fire desired to be detected and ambient radiation in order to prevent false alarms. Circuit means coupled to the detecting means provide an output control signal for the activation of a fire suppressant only when a hydrocarbon fire is detected having predetermined properties to exclude false alarms.

REFERENCES:
patent: 3147380 (1964-09-01), Buckingham et al.
patent: 3825754 (1974-07-01), Cinzori et al.

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