FIELD: instrumentation technologies; level checking devices.
SUBSTANCE: invention relates to device for measuring degree of tank filling provided with waveguide to transmit electromagnetic wave. Hollow waveguide has front end face section on which antenna with wave tuner element made of dielectric material is mounted. Wave turner element has outer perimeter by which it partially gets into aperture of end section of waveguide and partially projects from said end section. Sizes of wave tuner element are chosen to provide matching of waveguide transition of wave from end section of waveguide outwards or inwards and with metal material of joint in area between wave tuner element and waveguide. Joint material in form of bonding extends over area exceeding direct area of contact between outer perimeter of wave tuner element and waveguide.
EFFECT: provision of measuring device in which impairing action of air gap between wave tuner element and waveguide is reduced to minimum or eliminated.
12 cl, 3 dwg
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