Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1975-08-25
1976-12-14
Willis, Davis L.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
G01N 2126
Patent
active
039977862
ABSTRACT:
A system for performing an on-stream analysis of the chemical composition of a refinery stream. A U-shaped radiation waveguide having a plurality of small apertures therein is inserted into the refinery stream. Far infra-red radiation is introduced into one end of the waveguide. The apertures in the waveguide allow the chemical stream to circulate freely within it, resulting in selective absorption of the radiation traveling through the waveguide which is dependent upon the chemical composition of the stream. A detector detects radiation exiting from the waveguide, and produces a graph of radiation intensity versus wavelength for the far infra-red portion of the spectrum. A spectroscopic analysis of the graph indicates the chemical composition of the stream.
REFERENCES:
patent: 3319071 (1967-05-01), Werth et al.
patent: 3370502 (1968-02-01), Wilks, Jr.
patent: 3394253 (1968-07-01), Harrick et al.
patent: 3490847 (1970-01-01), Berz et al.
patent: 3920993 (1975-11-01), Cederstrand et al.
Lauer James L.
Peterkin Melvin E.
Hess J. Edward
Johnson Donald R.
Roch William C.
Sun Oil Company of Pennsylvania
Willis Davis L.
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