User interface for spectrometer

Details User interface for spectrometer User interface for spectrometer

1995-05-30

1997-05-27

Nguyen, Phu K.

G06F 1500

Patent

active

056339976

ABSTRACT:
A method for graphically forming a difference spectrum from a sample spectrum and a reference spectrum on a computer system includes displaying an initial difference spectrum on the display the initial difference spectrum being equal to the sample spectrum, selecting a data point in the initial difference spectrum, having an associated wave number, with a relative pointing device on the display, moving the data point a measurable amount on the display with the relative pointing device, determining a scaling factor in response to the measurable amount and to a data point in the reference spectrum having the same associated wave number, scaling each data point in the reference spectrum by the scaling factor to form a scaled reference spectrum, determining the difference spectrum between the sample spectrum and the scaled reference spectrum, and displaying at least a portion of the difference spectrum on the display.

REFERENCES:
patent: 5283867 (1994-02-01), Bayley et al.
patent: 5462438 (1995-10-01), Becker et al.
"Grams/38 Level III Database Operations", Galactic Industries Corporation, 1991.
"Subtraction", Grams (brochure), Galactic Industries Corporation (Jun., 1992).
"Quick IR+ User's Guide, Version 1.0", OMNIC FT-IR Software, Nicolet Instrument Corporation (1994).

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