Lasing dye sensor for chemical vapors

Details Lasing dye sensor for chemical vapors Lasing dye sensor for chemical vapors

1991-12-06

1993-02-09

Housel, James C.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 88, 356318, 356440, 372 53, 372 54, G01N 2127

Patent

active

051851318

ABSTRACT:
In an external lasing dye sensor system, a stream of lasing dye free-flows cross an open area inside a chamber. An air sample comprising chemical vapor contaminants is pumped or drawn into the chamber. A laser beam is introduced into the chamber intersecting the lasing dye. A chemical reaction between the contaminants and the lasing dye result in a change in the emission spectra of the lasing dye. The change in emission spectra is detected and thus provides an improved apparatus for detecting low concentrations of chemical vapors in an air sample.

REFERENCES:
patent: 4154579 (1979-05-01), Kreisel
patent: 4298845 (1981-11-01), Laude
patent: 4650329 (1987-03-01), Barrett et al.

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