Volume : VII, Issue : VII, July - 2018

pH Indicator paper color measurement using wireless tristimulus colorimeter

M. P. Patil, T. N. Ghorude

Abstract :

This paper reports wireless color measurement using TCS–230. Colored papers are illuminated with white light & corresponding light intensity from reflecting surface is detected using photodetector. The spectral characteristics of photodetector are normalized. The reflectance for the colored surface is measured as a ratio of reflected intensity to emitted intensity, TCS–230 is a ‘color light to frequency converter’. The output frequency is directly proportional to light intensity. The light to frequency converter reads an 8*8 array of photodiodes. Sixteen photodiodes are clear with no filter, 16 have red filters, 16 have green filters & 16 have blue filters. All 16 photodiodes of same color are connected in parallel. The chromaticity co–ordinates of pH colors papers are measured using the wireless colorimeter and compared with CIE standard co–ordinate values.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

M. P. Patil, T. N.Ghorude, pH Indicator paper color measurement using wireless tristimulus colorimeter, INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH : Volume-7 | Issue-7 | July-2018

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