Apparatus and method for signal generation and for processing

Details Apparatus and method for signal generation and for processing Apparatus and method for signal generation and for processing

1990-12-14

1992-03-24

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356236, 250228, G01J 342

Patent

active

050981870

ABSTRACT:
The apparatus and method of the invention are applied to the generation of alternating sample, dark, reference and dark beams for direction of said sample and reference beams into an integrating sphere which comprises detecting means and a reference source, for spectroscopic analysis of a sample contained in a sample cell which is operatively associated with said integrating sphere; to the generation of digital control signals attendant the generation of said beams; and to the processing of the multiplexed, sample analysis results analog data signal, as provided by the detecting means, by aligning a digital control signal therewith in time and further operating upon the thusly aligned data signal to precisely calculate the sample analysis results therefrom.

REFERENCES:
patent: 2474098 (1949-06-01), Dimmick
patent: 3207996 (1965-09-01), Sundstrom
patent: 3560098 (1971-02-01), Witte et al.
patent: 4305663 (1981-12-01), Perkins et al.

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