THREE-COMPONENT JET ANGULAR RATE TRANSDUCER Russian patent published in 2018 - IPC G01P3/26 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measuring technology and can be used to determine the angular rate of mobile objects in three planes of rotation. Three-component jet angular rate transducer comprises sealed housing 1 in which first working chamber 2 is disposed in which supercharger 3 and laminar jet forming unit 4 are arranged in series, and at its output the first anemosensitive unit is installed, the unit includes flat base 5 permeable to the flow of the jet and located perpendicular to the direction of its flow, on which central pillar 6 is perpendicularly mounted and electrically conductive insulated racks 7, 8, 9, 10 arranged in relation to each other in a pairwise orthogonal and symmetrical manner with respect to central pillar 6 in the "xoz","yoz" planes of rotation of the object, anemosensitive elements 11, 12, 13, 14 are perpendicular to the flow of the jet, the first ends of them are electrically connected to each other and fixed to central pillar 6, and the second ends of each of the anemosensitive elements 11, 12, 13, 14, respectively, are fixed to their pillars 7, 8, 9, 10, second working chamber 15 formed by the outer cylindrical surface of first working chamber 4 and inner surface of the housing 1, to obtain a curved slit channel symmetrically tapering along a curved sidewall to an outlet along the outer surface of first working chamber 2 and arranged along it to provide a constrained laminar flow with a parabolic velocity distribution profile in cross section, the input of which is pneumatically connected by the outlet of first working chamber 2, and at the outlet, the second anemosensitive unit permeable for the flow of the jet is installed, after which the flow enters the inlet of supercharger 3. Outputs of the first anemosensitive unit of first working chamber 2 are connected to the inputs of measuring circuit 17 of the angular rate component measuring channel ω_x and measuring circuit 18 of the angular rate component measuring channel ω_y of measuring unit 16, and the outputs of the second anemosensitive unit of second working chamber 15 are connected to the inputs of measuring circuit 19 of the angular rate component measuring channel ω_z of measuring unit 15, output signals of which are the output signals of a three-component jet angular rate along the components of the angular transducer ω_x, ω_y and ω_z.

EFFECT: increased reliability and simplified design, simplified installation of pneumatic zero in the second working chamber and accuracy of operation time due to use of a sequential closed pneumatic circuit, which leads to the same gas flow in both working chambers, as well as possession of compact mass-size characteristics.

2 cl, 2 dwg