Patent ID: 6574575
Filing Date: 2003-06-03
Classification: A47J,G01N

Abstract:
A method of calibrating a beverage dispenser, comprising the steps of:a) supplying a first fluid, wherein the flow of the first fluid is controlled by a first valve; b) supplying a second fluid, wherein the flow of the second fluid is controlled by a second valve; c) mixing the first fluid and the second fluid; d) calibrating a fixed optic sensor via passing zero-Brix water, whose temperature is the same as that of the first and seconds fluids, onto the sensing surface of the fixed optic sensor such that temperature inaccuracies are referenced out and further such that contamination and fouling of the sensing surface by any fluids are substantially eliminated; e) passing a sample of the mixture of the first fluid and the second fluid onto a sensing surface of the fixed optic sensor; f) measuring one or more properties of the sample; g) utilizing the measured properties to determine and improve the quality of the dispensed beverage; and h) repeating steps (a)-(g) until a desired ratio of fluid constituents is achieved.