Detection device for hazardous materials

Details Detection device for hazardous materials Detection device for hazardous materials

1990-04-04

1994-04-05

Stoll, Robert L.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 8206, 422 8207, G01N 2100

Patent

active

H00012971

ABSTRACT:
A detection device that is activated by the interaction of a hazardous chcal with a coating interactive with said chemical on an optical fiber thereby reducing the amount of light passing through the fiber to a light detector. A combination of optical filters separates the light into a signal beam and a reference beam which after detection, appropriate amplification, and comparison with preset internal signals, activates an alarm means if a predetermined level of contaminant is observed.

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patent: 4582809 (1986-04-01), Block et al.
patent: 4775633 (1988-10-01), Rounbehler
patent: 4880752 (1989-11-01), Keck et al.
patent: 4925268 (1990-05-01), Iyer et al.
patent: 4952513 (1990-08-01), Koocher

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