FIELD: aero-space engineering, applicable in national economy. SUBSTANCE: pressure pickup is sticked to the profile surface that is not streamlined by gas flow. Vent holes are made in the product. The area of the vent holes is less than the area of the pickup sensing element by 0.25 to 400 times. The sensing element is fastened to the product surface along the periphery of the sensing element perforation cell. Dielectric films are gathered in a pack, positioned symmetrically relative to one another. A stepped shape is formed along the whole perimeter around the pickup edges. The steps of dielectric film have arbitrary dimensions. EFFECT: facilitated procedure. 2 dwg
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