Analyn N. Yumang
ABSTRACT
Spectral Sensing and Spectroscopy have a lot of uses nowadays, it is being used in laboratories to detect and measure different substances in blood serum, however these procedures are only widely done currently on extracted samples like blood and urine. In the Philippines there are currently no non-invasive procedures to measure uric acid in the blood, the objective of this study is to implement the use of Spectral sensor and Spectroscopy as a means of measuring uric acid non-invasively. The spectral sensor AS7263 is used in this prototype, to measure the light intensity reflected on the wrist of the person and a Raspberry Pi 3 B+ is used to convert the detected light intensity into concentration of Uric Acid. This study is limited in detecting the light reflectance using the spectral sensor compared to the actual uric acid concentration in mg/dL in the blood and the use of linear regression analysis to obtain the conversion model. The prototype had a 6.61% average percent difference compared to the uric acid meter during the testing process which can conclude that it is possible to determine the uric acid levels non-invasively using a spectral sensor.
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