Combustion pinhole camera system

Details Combustion pinhole camera system Combustion pinhole camera system

1982-05-19

1984-02-21

Favors, Edward G.

Furnaces

With safety means

110185, 358100, 431 13, F23N 524

Patent

active

044322860

ABSTRACT:
A pinhole camera system utilizing a sealed optical-purge assembly which provides optical access into a coal combustor or other energy conversion reactors. The camera system basically consists of a focused-purge pinhole optical port assembly, a conventional TV vidicon receiver, an external, variable density light filter which is coupled electronically to the vidicon automatic gain control (agc). The key component of this system is the focused-purge pinhole optical port assembly which utilizes a purging inert gas to keep debris from entering the port and a lens arrangement which transfers the pinhole to the outside of the port assembly. One additional feature of the port assembly is that it is not flush with the interior of the combustor.

REFERENCES:
patent: 2388124 (1945-10-01), Crews
patent: 3021386 (1962-02-01), Clark
patent: 3075577 (1963-01-01), Cazalas
patent: 3477823 (1969-11-01), Freiday
patent: 3936196 (1976-02-01), Wickersheim
Report S/N 34731, "Coal Combustion Aerothermochemistry Research" Witte et al., Dec. 15, 1980.

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