Optics: measuring and testing – By dispersed light spectroscopy – With raman type light scattering
Patent
1993-08-02
1995-05-02
Evans, F. L.
Optics: measuring and testing
By dispersed light spectroscopy
With raman type light scattering
356317, 356319, 110186, 364498, G01J 344
Patent
active
054124654
ABSTRACT:
A method for validating a process stream for the presence or absence of a substance of interest such as a chemical warfare agent; that is, for verifying that a chemical warfare agent is present in an input line for feeding the agent into a reaction vessel for destruction, or, in a facility for producing commercial chemical products, that a constituent of the chemical warfare agent has not been substituted for the proper chemical compound. The method includes the steps of transmitting light through a sensor positioned in the feed line just before the chemical constituent in the input line enters the reaction vessel, measuring an optical spectrum of the chemical constituent from the light beam transmitted through it, and comparing the measured spectrum to a reference spectrum of the chemical agent and preferably also reference spectra of surrogates. A signal is given if the chemical agent is not entering a reaction vessel for destruction, or if a constituent of a chemical agent is added to a feed line in substitution of the proper chemical compound.
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Baylor Lewis C.
Buchanan Bruce R.
O'Rourke Patrick E.
Dixon Harold M.
Eisenberg Jason D.
Evans F. L.
Moser William R.
The United States of America as represented by the United States
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