Fire and overheat detection

Details Fire and overheat detection Fire and overheat detection

1988-04-15

1990-01-23

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

250227, 340508, G08B 1702, H01J 516

Patent

active

048961418

ABSTRACT:
An overheat detector comprises an optical fiber connected at one end to a light source and at the other end to a photodiode for monitoring the light level transmitted through the fiber. When the light level falls below a predetermined threshold due to melting of the fiber, an alarm signal is output. The temperature at which the alarm signal is output depends upon the material of which the light conducting part of the fibre is constructed.

REFERENCES:
patent: 4203326 (1980-05-01), Gottlieb et al.
patent: 4453159 (1984-06-01), Huff et al.
patent: 4650003 (1987-03-01), Euson
patent: 4712096 (1987-12-01), Cholin et al.

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