Inventors:
Nigel Campbell - Pullman WA, US
Gaylon Campbell - Pullman WA, US
Scott Campbell - Sewickley PA, US
Anthony Fontana - Pullman WA, US
Richard Ozanich - Richland WA, US
International Classification:
G01N 21/35
Abstract:
A method and apparatus for determining water activity levels of samples by spectral analysis. The method and apparatus facilitate much faster water activity level measurement than prior methods and apparatus. The method may include calibrating a spectral analyzer by correlating samples of known water activity to certain spectral features. A calibrated apparatus according to principles of the present invention may very quickly correlate spectral features of a sample of interest with a water activity level to a high degree of accuracy.