A sensor design based on the principle of laser ranging to measure the thickness of sea oil spill
Lichen Zhang

Yazhou Bay Innovation Institute/ College of Marine Science and Technology, Hainan Tropical Ocean University, Sanya Hainan,572022；

Abstract: This study aims to design a marine oil film thickness measurement sensor based on pulsed laser ranging technology to address the potential ecological threats posed by oil spill incidents in marine environments. By employing an advanced measurement approach, the sensor continuously monitors the thickness of oil films on the ocean surface, offering an effective means for environmental protection and oil spill emergency response. The research team conducted a comprehensive analysis of key influencing factors and mechanisms during the measurement process, providing theoretical support for the sensor's design and application. The sensor system comprises five main components: the Sensor Control Unit, Laser Ranging Unit, Wireless Serial Communication Unit, Upper Computer Data Reception Unit, and Upper Computer Data Processing Software. Through module testing and measurements in an experimental water tank, the study validates the measurement accuracy of the sensor. Experimental results demonstrate that the relative error remains within the range of 2% to 3% across various oil film thickness measurements, confirming the feasibility of the sensor in measuring thicker oil films in practical applications. Further validation in actual water tank experiments underscores the sensor's performance and stability, thereby offering robust support for marine environmental monitoring and emergency response efforts.

Keywords: Marine oil spill; oil film thickness measurement;  pulsed laser ranging technology;  environmental protection;  sensor design

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