Processing system for remote chemical identification

Details Processing system for remote chemical identification Processing system for remote chemical identification

G - Physics

01

K

G01K 1/00 (2006.01) G01J 3/00 (2006.01) G01J 3/28 (2006.01) G01J 3/453 (2006.01) G01J 5/00 (2006.01) G01N 21/00 (2006.01) G01N 21/35 (2006.01) G01N 33/53 (2006.01) H04N 5/33 (2006.01) G06F 19/00 (2006.01)

Patent

CA 2486523

A fourth embodiment of the present invention is a method of generating a temperature compensated absorbance spectrum. The method includes the steps of: a. providing a sample spectrum and an estimated temperature of a backdrop object (176); b. from a set of known temperature spectra related to a known background temperature, selecting at least two known temperature spectra representing a background temperature above and below the estimated temperature (178); c. comparing the sample spectrum to the known temperature spectra in order to determine a sample background spectrum (179); and d. calculating an absorbance spectrum from the sample spectrum and the background spectrum (181).

Un quatri­me mode de r~alisation de l'invention concerne un proc~d~ permettant de g~n~rer un spectre d'absorbance ~ compensation de temp~rature. Le proc~d~ comprend les ~tapes consistant ~ utiliser un spectre ~chantillon et une temp~rature estim~e d'un objet de fond; b. ~ s~lectionner, ~ partir d'un ensemble de spectres de temp~rature connus relatifs ~ une temp~rature de fond, au moins deux spectres de temp~rature connus repr~sentant une temp~rature de fond sup~rieure et inf~rieure ~ la temp~rature estim~e; c. ~ comparer le spectre ~chantillon aux spectres de temp~rature connus, de mani­re ~ d~terminer un spectre de fond ~chantillon; et d. ~ calculer un spectre d'absorbance ~ partir du spectre ~chantillon et du spectre de fond.

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