Laser Method of Remote Monitoring of Thin Film Density of Oil Products at Water Surface

A remote method to measure the density of oil films on the water surface is studied. The method operates the tunable laser radiation source and uses an algorithm based on the approximation of dependence of measured echo intensity on the radiation wave length by a known function with the search of approximation parameters to achieve the best match between the measurements and approximation function. It is shown that the algorithm application allows reconstructing density of thin oil films on the water surface with a high precision.