FIELD: control of oil-product quality. SUBSTANCE: SHF-apparatus for measuring moisture content in petroleum and petroleum products includes primary measuring transducer in the form of SHF transmission line representing metallic conductor. Said metallic conductor is electrically connected with SHF-oscillator and with receiver of SHF-oscillations passed through investigated petroleum product. Expression for calculating diameter value of metallic conductor is given. Piece of pipeline may be coated by material absorbing SHF-irradiation. EFFECT: enhanced accuracy of measuring. 3 cl, 1 dwg
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