MULTICHANNEL AEROMETRIC PROBE Russian patent published in 1995 - IPC

FIELD: meteorology. SUBSTANCE: probe has aerodynamic body 1 provided with tubular pressure receivers 2 disposed radially. Each receiver is connected with its output carbine by means of its own independent dynamic channel 3. Two coaxial screening disks 5 and 6 are disposed at edge surfaces of aerodynamic body which is made in form of a cylinder. External surfaces of the disks are parallel one to the other and perpendicular to axis of rotation of aerodynamic body. Internal surfaces of the disks meet and join edges of aerodynamic body. Internal surfaces are made in form of body of rotation which has generating line to be identical to Venturi circuit; tubular pressure receivers are disposed between the internal surfaces. Converging tube and diffuser parts 7 and 8 of internal surfaces of screening disks are mated together by flat surfaces 9 which are perpendicular to axis of aerodynamic body. Surfaces of entrance holes 10 of tubular pressure receivers are disposed at tangent line to the cylinder crossing circles of matching of flat and diffuser parts of internal surfaces of screening disks. Static pressure receiving holes are disposed in annular grooves with width being equal to diameters of tubular pressure receivers. Axes of receiving holes coincide with the axis of aerodynamic body. Angle at the vertex of conic surfaces is larger than 60-70 deg. Static pressure receiving holes are connected together and with equalizing chambers 15 and 16 by means of radial and axial pneumatic channels. Receiving holes 21 and 22 are disposed close to input edges 19 and 20 of screening disks (at each disk) according to angle of slope of air stream. The receiving holes axes belong to radial plane which has axis of aerodynamic body as well, and coincide with generating lines of conic surfaces with 60-70 deg angle at vertex; conic surfaces are formed by rotation about axis of aerodynamic body. EFFECT: widened range of measurement of speed vector direction of air stream; improved precision of measurements. 5 dwg