Method and apparatus to detect a flame

Details Method and apparatus to detect a flame Method and apparatus to detect a flame

1994-09-12

1995-12-05

Dority, Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

By combustion or combustion zone sensor

431 25, 340579, F23N 500

Patent

active

054723370

ABSTRACT:
An apparatus and method to qualify the condition of a flame body is disclosed, where such apparatus comprises a power source, an amplifier and sensor means, where said sensor means includes two or more probes disposed in spaced apart relation so as to conduct a current and said amplifier is designed to selectively amplify the signal generated between said probes so as to isolate a selected frequency consistent with ionization of a given fuel/air mixture.

REFERENCES:
patent: 3302685 (1967-02-01), Ono et al.
patent: 3875476 (1975-04-01), Crandall et al.
patent: 4672324 (1987-06-01), Kampen
patent: 5049063 (1991-09-01), Kishida et al.
patent: 5073104 (1991-12-01), Kemio

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