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Contamination Detector and Controller Disclosure Number: IPCOM000060814D
Original Publication Date: 1986-May-01
Included in the Prior Art Database: 2005-Mar-09

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Dawson, KA McGarigle, DM Shang, DC [+details]


A technique for determining the amount of contamination in a process solution is accomplished by scanning samples with different levels of solute in solution using ultraviolet spectroscopy. After a series of samples are run on a particular contaminate, the scans are overlaid and the overlays are inspected to determine if a wavelength band shows separation by the amount of contamination in the sample. If so, a narrow band optical filter is specified out covering the area displaying the separation to allow the detection of the level of contamination in solution. Several different solvents may be characterized and the corresponding narrow band optical filters specified. A pulsed xenon light source and detector will display a number representative of the amount of light received at the detector.