G - Physics – 01 – N
Patent
G - Physics
01
N
183/19, 73/57
G01N 21/25 (2006.01) G01J 1/16 (2006.01) G01J 3/32 (2006.01)
Patent
CA 2016274
13 Abstract of the Disclosure In a spectrophotometer having photodetectors positioned at fixed wavelengths, the photodetector is divided into three subdetectors, a main subdetector on the wavelength of interest and two background subdetectors located on each side of the main subdetector, the background subdetectors together having area equal to that of the main subdetector, the background subdetectors being connected in polarity reverse that of the main subdetector to correct for changes in background radiation.
Bolton Barbara Ann
Wells Gregory James
R. William Wray & Associates
Varian Associates Inc.
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