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Development and Application of Miniaturized Multispectral Detection System for Water Reflection Detection.

Yuze Song1,2,3, Yunfei Li4,5, Chao Li1,2

  • 1National Ocean Technology Center, Tianjin 300112, China.

Sensors (Basel, Switzerland)
|December 31, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a compact multispectral sensor for underwater molecular detection. The system accurately estimates chlorophyll concentration in water using a novel regression algorithm.

Keywords:
chlorophyll concentration calculationmultispectral detectionwater reflection detection

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Area of Science:

  • Optics and Photonics
  • Environmental Science
  • Sensor Technology

Background:

  • Spectroscopic technology enables rapid molecular detection but often involves complex systems.
  • Underwater spectral detection requires robust waterproofing and system stability.
  • Miniaturized modules can enhance stability and simplify hardware for aquatic monitoring.

Purpose of the Study:

  • To develop a compact multispectral detection system for underwater applications.
  • To enable accurate estimation of water chlorophyll concentration using spectral data.

Main Methods:

  • Developed a miniaturized multispectral detection system using a miniature sensor and microcontroller.
  • The system captures data across eight spectral channels (400-700 nm) via the I2C bus.
  • A regression algorithm was developed to estimate chlorophyll concentration from reflectance spectra.

Main Results:

  • The system demonstrated sufficient sensitivity and stability for water reflectance spectral detection.
  • The developed regression algorithm accurately estimated chlorophyll concentration.
  • Results were validated against standard chlorophyll detection instruments.

Conclusions:

  • The compact multispectral detection system is effective for underwater spectral analysis.
  • The system offers a stable and simplified solution for aquatic monitoring.
  • Accurate chlorophyll concentration estimation is achievable with the proposed method.