Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
James E. Davis0
Date of Patent
July 14, 2009
Patent Application Number
11981418
Date Filed
November 1, 2007
Patent Primary Examiner
Patent abstract
A low cost calorimeter wherein a linear taper potentiometer proportions the current through sample and reference solid state light sources in a near logarithmic fashion. The position of the potentiometer slider is proportional to the absorbance of the solution in the sample path when the light intensity of the two paths is balanced. The light intensity may be balanced visually or with a simple electronic comparator.
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