The effect of substance concentration on the spectral information of a multi-spectral sensor
Issued Date
2024-05-17
Resource Type
ISSN
0094243X
eISSN
15517616
Scopus ID
2-s2.0-85194360516
Journal Title
AIP Conference Proceedings
Volume
3086
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
AIP Conference Proceedings Vol.3086 No.1 (2024)
Suggested Citation
Kiattimongkol N., Kiattimongkol W., Chamniprasart K., Phunpeng V., Uangpairoj P. The effect of substance concentration on the spectral information of a multi-spectral sensor. AIP Conference Proceedings Vol.3086 No.1 (2024). doi:10.1063/5.0214186 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/98612
Title
The effect of substance concentration on the spectral information of a multi-spectral sensor
Corresponding Author(s)
Other Contributor(s)
Abstract
This research aimed to investigate the effect of substance concentration on the spectral information of a multi-spectral sensor. The measurement unit contained an Arduino UNO microcontroller that was used to read the spectral data obtained from a multi-spectral sensor. The multi-spectral sensor received reflected light from the samples, which were coffee phantoms with various coffee concentrations in the range of 0.5 - 60 mg/dl. Normalized spectral data were analyzed using analysis of variance and regression methods to investigate the effect of coffee concentration on the normalized spectral data of the multi-spectral sensor. According to the results of the study, the coffee concentration is related to the normalized data in the form of a polynomial function. The normalized spectral data inversely varied with the coffee concentration. The quadratic equation obtained from the regression at wavelengths of 580-600 nm was selected as the prediction model for measuring the coffee concentration. The predicted concentrations agreed with the actual concentrations. Therefore, spectral sensors can be applied to the concentration measurement of some colored biological substances.