Journal Paper

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Journal: AMIRKABIR | Year:1386 | Volume:18 | Issue:66-D | Start Page:19 | End Page:27

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Title

RECONSTRUCTION OF ABSORPTION SPECTRA OF BI- COMPONENT DYE SOLUTIONS USING LOOK UP TABLE METHOD

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 Start Page 19 | End Page 27

Abstract

 In this investigation, a LOOK UP TABLE method was used for reconstruction of the absorption spectra of dye solutions. In order to do so, bi-component dye solutions with different dye concentrations were prepared and the absorbance of each solution was measured in the visible region. The samples were divided into two groups; the first group was used for calibration and the second for evaluation. The system used for reconstruction had three inputs, concentration of first component and of second component and wavelength, with the absorbance value in certain wavelength as output. The root-mean-square errors, CIELAB colour differences, and concentration differences were determined as the difference between calculated and measured absorbance values for both calibration and test samples. The LOOK UP TABLE method was compared with conventional regression method. The amount of RMS errors and colour and concentration differences for LOOK UP TABLE method was significantly lower than that of regression method.

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