HELICOPTER AIR SIGNALS SYSTEM Russian patent published in 2019 - IPC G01P5/00 B64C27/04 

FIELD: measurement technology.

SUBSTANCE: invention relates to a method of measuring altitude-velocity parameters of a helicopter. Parameters of incident airflow and resultant airflow of rotor vortex column are measured by means of fixed combined receiver, converting them into digital signals, performing their processing and determining altitude-speed parameters in a computing device (calculator) based on given equations, wherein the incoming airflow parameters are received by the fixed panoramic ion-tag sensor, in which the spark discharger connected to the high-voltage source generates ion marks having an electrostatic charge, recording the speed and the trajectory angle of its movement together with the flow by means of a board with receiving electrodes and a measurement circuit with a digital output which is connected to the input of the computer, wherein by means of a receiving hole arranged on the streamlined surface of the board with receiving electrodes of the ion-tag sensor, the static pressure of the incident airflow is sensed, it is converted by means of a digital absolute pressure sensor into a digital signal which is transmitted to the input of a computer which determines altitude-speed parameters of the helicopter in all modes of operation in a certain manner.

EFFECT: higher accuracy of measuring altitude-speed parameters.

1 cl, 6 dwg