Measuring transparency of gases, particularly the optical transm

Details Measuring transparency of gases, particularly the optical transm Measuring transparency of gases, particularly the optical transm

1975-05-21

1976-08-03

Dixon, Harold A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356207, G01J 100

Patent

active

039731235

ABSTRACT:
To prevent contamination of confining surfaces of vessels through which a light beam is passed, the attenuation of which is a measure of the optical transparency of exhaust gases from Diesel engines, transparent disks, such as glass disks, are rotated adjacent the chamber and heated, for example by gas jets or an infrared source to such a temperature that the disk temperature is raised to a level sufficient to burn off any residual deposits left by the gases on the disks, so that the transparency of the disk will not be impaired and adulterate the measuring results.

REFERENCES:
patent: 2901626 (1959-08-01), Becker
patent: 3519356 (1970-07-01), Kroeger et al.
patent: 3581085 (1971-05-01), Barrett
patent: 3609382 (1971-09-01), Moore et al.
patent: 3628873 (1971-12-01), Leitz
patent: 3790289 (1974-02-01), Schmidt
patent: 3826918 (1974-07-01), Koogle et al.
patent: 3867640 (1975-02-01), Paulsen

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