Color light sensor device for light absorbance measurement device

Kittipanyangam, Soranut; Do, Wanglok; Eguchi, Koichi

doi:10.1109/ecticon.2017.8096237

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…Hence, the proposed setup device is a low-cost device as compare to the other device. (4) 3140 JPY A Low Cost LED Based Spectrometer (6) US$ 20 Design of a Hand-Made Light Absorbance Measurement Device for Chemical Education (7) 3700JPY Color Light Sensor Device for Light Absorbance Measurement Device (10) 3000 JPN A Low-Cost Quantitative Absorption Spectrophotometer (12) US$ 25 Development of a low-cost colorimeter-like for undergraduate classes using microcontroller board and RGB LED (14) US$ 27.20…”

Section: Circuit Analysismentioning

confidence: 99%

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A low-cost absorbance measurement device using microcontroller

Shree¹,

Shinde²

2021

IJST

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Objectives: To design a low-cost absorbance measurement device using a microcontroller that can be used for student's learning. Methods/Statistical analysis: The setup device is designed based upon Beer-Lambert Law with some LEDs through various sample solutions along with LDR at a different range of wavelength and the results are shown on a 16x2 LCD by use of a PIC16F877a microcontroller. The results are also compared with the standard colorimetric method. Findings: The setup device able to measure the absorbance of different colors of sample solutions at a wide range of wavelength (400-700nm) and measured by utilizing different LEDs to the transmitter end and an LDR at the receiver end. The proposed experimental device's performance was compared with the standard colorimeter for efficiency check. The efficiency of the setup device is near to the colorimeter of more than 95%. Novelty/Applications: For educational purpose, the proposed setup device is well affordable due to low cost (US$10.98) and easy to maintain because of compact size and data acquisition directly through microcontroller.

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Section: Circuit Analysismentioning

confidence: 99%

“…Therefore, the error will decrease. The calculation is PIC16F877A microcontroller is used generally for controlling the device (10) . The LED intensity is small outside of the 420−660 nm range.…”

Section: Introductionmentioning

confidence: 99%

A low-cost absorbance measurement device using microcontroller

Shree¹,

Shinde²

2021

IJST

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“…Introduction Nowadays, spectrophotometers and colorimeters are primarily used in production industries and inspection applications for colour difference measurements and colour chart measurement [1]. Spectrophotometers and colorimeters have some similarities, but they are still very different.…”

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confidence: 99%

Concentration measurement of coloured solution using optofluidic approach

Dali

Robi

Ahmad

et al. 2022

J. Phys.: Conf. Ser.

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In analytical process, measurement of concentration of solution based on colorimetric sensing is normally performed using commercial devices such as colorimeter and spectrophotometer. This approach has several disadvantages such as involving a large volume of reagent and analyte during testing and measurement, unextendible and expensive. Such problem can be solved by replicating its function using a simple optofluidic device with capability of carrying out colorimetric testing with low volume of analyte and reagent. Other benefits of optofluidic devices platforms includes ability to be expanded for automated sensing and mixing for various analytical based reaction. The measurement device works based on the absorbance of absorbance of light, which is related to Beer-Lambert law principles with LED and photodiode as its main optical components. The samples were prepared for concentration ranges between 0.2 to 2.0 M for testing. As a result, it is observed that these concentrations produce a linear voltage calibration curve with correlation coefficient, R2 equal to 0.9944. By using the obtained calibration curve, the final absorbance calculation gives an acceptable linear absorbance concentration with R2 equal to 0.9751 for the tested samples. As a conclusion, these microfluidic platforms not only have a good measurement performance, but also have advantages in terms of its portability and have potential to be implemented for real time application.

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