REMOTE METHOD OF MEASURING THICKNESS OF OIL PRODUCT THICK FILMS ONTO WATER SURFACE Russian patent published in 2007 - IPC G01B11/06 

FIELD: measuring technique.

SUBSTANCE: remote method of measurement of oil product thick films onto water surface is based upon irradiation of water surface by optical radiation at three specific proving wavelengths, registration of signal reflected from surface and subsequent measurement of thickness of films from results of measurement of signal reflected from water surface at three specific probing wavelengths. To determine thickness d of film, probing wavelengths λ₁, λ₂ and λ₃ are taken from condition of n₂(λ₁)/λ₂=2n₂(λ₂)/ λ₂, where n₂(λ₁), n₂(λ₂) are refractivity factors of oil product at wavelengths of λ₁, λ₂; and λ₃ equals to oil product's maximal absorption wavelength. Thickness of 4-5 mcm can be measured by the method.

EFFECT: increased precision of measurement.

2 dwg