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Noise cancellation in fourier transform spectrophotometry
(2011)
Abstract
Increasing signal to noise ratio in optical spectra obtained by spectrophotometers. An interferometer introduces interference effects into a source light beam. A dual beam configuration splits the source beam having the interference effects into a reference beam and a sample beam. The reference beam interacts with a reference substance and is detected by a reference detector. The sample beam interacts with a sample substance and is detected by a sample detector. An optical spectra of the sample is based on the difference between the detected reference beam and the detected sample beam.
Disciplines
Publication Date
March 8, 2011
Comments
Patent Number
US7903252B2
Citation Information
David W. Larsen and Zhi Xu. "Noise cancellation in fourier transform spectrophotometry" (2011) Available at: http://works.bepress.com/zhi-xu/33/