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PASSIVE METHOD FOR REMOTE DETECTION OF ACTUAL DIELECTRIC CONSTANT PORTION OF OIL FILM SPILLED OVER WATER SURFACE
PASSIVE METHOD FOR REMOTE DETECTION OF ACTUAL DIELECTRIC CONSTANT PORTION OF OIL FILM SPILLED OVER WATER SURFACE
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机译:被动检测散布在水面上的油膜的实际介电常数部分
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摘要
FIELD: remote detection of actual dielectric constant portion of investigated object. SUBSTANCE: nonpolarized noise radiation of sky in very-high-frequency band is used as plane electromagnetic wave source, vertically polarized component of electromagnetic field being received at Brewster angle from zenith direction; electric field amplitude received and Fresnel's formula are used to find amplitude of re-reflected electric field vertically polarized from lower level of oil film at oil-to-water interface ; amplitude of vertically polarized electric field re-reflected from lower level of oil film on oil-to- water-surface interface is measured and measured value of re-reflected vertically polarized electric field is compared with its calculated value; chosen value of εoil is varied within specified range at pitch of 0.1 until calculated and measured values are brought in alignment with desired accuracy, for instance 1%, εoil value obtained being assumed as sought quantity. EFFECT: provision for measuring actual portion of dielectric constant of oil film spilled over water surface under natural conditions. 1 dwg
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