Remote laser four-wave method for measuring thickness of the thin petrochemical films on the rough sea surface
Authors: Gorodnichev V.A., Belov M.L., Kuvshinov A.V.
Published in issue: #2(38)/2015
DOI: 10.18698/2308-6033-2015-2-1373
Category: Mechanics | Chapter: Mechanics of Liquid, Gas, and Plasma
The urgent problem of monitoring oil pollution on water surface is considered. Laser spectrophotometric method for measuring thickness of petrochemical film on river, lake and sea water areas is developed. Laser meter uses four wavelengths of radiation. It is located at an aircraft carrier, and irradiates the sea surface vertically downwards. It is shown that developed laser four-wave method allows measuring thickness of thin oil films and petrochemical films (thickness less than wavelength of laser radiation) on rough sea surface with an error of 20 percent or less.
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