A laser control method for thin oil films on a water surface based on measurements of first-order and second-order derivatives of the reflection coefficient

Abstract

The laser control method for thin oil films on a water surface is considered, based on measure ments of first order and second order derivatives of the reflection coefficient. Mathematical modeling shows that the method allows the detection of thin oil films with a high reliability, and measurement of oil films of a thickness from 0.1 to 10 µm with a an error of less than 30% at an RMS noise of 0.3%. The error decreases with a decrease in the film thickness and is less than 3% in the 0.1-2 µm thickness range in most cases.

Oil spill response technology for ice-covered waters in the Arctic

“…One of the important tasks, effective elimination of emergency oil spills, is its rapid detection, the most rational use of underwater vehicles [2]. Quite a lot of developments are devoted to the problem of detecting petroleum products [7,8].…”