VORTEX SENSOR OF AERODYNAMIC ANGLE AND TRUE AIR SPEED Russian patent published in 2015 - IPC G01P5/00 

FIELD: measurement equipment.

SUBSTANCE: device includes two wedge-like bodies installed with their bases opposite to an incident flow, two recording devices of vortex formation frequencies after the bodies and a processing device, the output of which is the sensor output. Wedge-like bodies are located on one axis one above another; on upper and lower bases perpendicular to a common axis of the wedge-like bodies there installed are straightening vanes in the form of thin plates separating the vortex formation zones of the wedge-like bodies. On the upper surface of one, for example upper one, straightening vane there is a receiving opening that is connected through a pneumatic channel to the input of the pneumatic-electrical transducer (sensor) of absolute pressure, the output of which is connected to the input of the processing device. The processing device is made in the form of a computer realising both algorithms for determination of an aerodynamic angle and a true air speed and algorithms for determination of other altitude and speed parameters.

EFFECT: higher measurement accuracy.

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