Remote vehicle emission analyzer with light conveyance to detect

Details Remote vehicle emission analyzer with light conveyance to detect Remote vehicle emission analyzer with light conveyance to detect

1995-07-25

1997-07-01

Tokar, Michael J.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250347, 25033913, 250372, 250236, 356437, 356438, G01N 2100

Patent

active

056441339

ABSTRACT:
A mechanical optical system scans a light beam that has passed through an automobile exhaust plume onto a plurality of detectors by using fiber optic tubes in an array that is mounted close to a rotating mirror. First ends of the fiber optic tubes are in an array adjacent the mirror and second ends of the fiber optic tubes feed the scanned light beam onto respective detectors that detect various gaseous components in the vehicle exhaust. Using the fiber optic tubes eliminates the need for secondary mirrors and reduces the requirement for highly accurate optical alignment among the components of the system.

REFERENCES:
patent: 5210702 (1993-05-01), Bishop et al.
patent: 5254858 (1993-10-01), Wolfman et al.
patent: 5319199 (1994-06-01), Stedman et al.
patent: 5319200 (1994-06-01), Rosenthal et al.
patent: 5401967 (1995-03-01), Stedman

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