Flame monitoring system

Radiant energy – Photocells; circuits and apparatus – Flame light source

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Details

250214AG, 250214RC, 3402282, G01N 2158

Patent

active

040398447

ABSTRACT:
A flame monitoring system includes a flame sensor for producing a flame signal as a function of flame conditions in a monitored environment and flame signal enhancing circuitry coupled to the flame sensor. The flame signal enhancing circuitry has a first response as a function of a first characteristic of the flame signal and a second response different from the first response as a function of a second characteristic of the flame signal and is arranged to combine the first and second responses to provide an enhanced flame signal representative of the monitored flame.

REFERENCES:
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patent: 2911540 (1959-11-01), Powers
patent: 2994859 (1961-08-01), Klein
patent: 3233650 (1966-02-01), Cleall
patent: 3321634 (1967-05-01), Innes
patent: 3548395 (1970-12-01), Gilbert
patent: 3613062 (1971-10-01), Bloice
patent: 3689773 (1972-09-01), Wheeler
patent: 3716717 (1973-02-01), Scheidweiler et al.
patent: 3740574 (1973-06-01), Taylor
patent: 3820097 (1974-06-01), Larson

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