Method for measuring the angular velocity of airflow

Background. Measuring the speed of movement or rotation of moving objects, as well as air and liquid media, is one of the most common practices in aviation, automotive, and manufacturing industries. With the emergence of new principles, laws, and methods for determining variables and parameters of physical quantities, new devices and measurement techniques are being developed. Materials and methods. This work proposes a method for measuring the angular velocity of moving objects based on the dynamics of airflow, whichcan be generated by the rotation of a flywheel of any engine, maneuvering of an aircraft, and more. When there is an airflow and a portable angular velocity occurs, a complex motion arises, creating a Coriolis force that leads to the redistribution of pressure differences in the liquid or gas flow. Measuring the pressure difference allows for the determination of the angular velocity of the rotating object. The pressure difference can be measured using various sensitive elements, such as strain gauges, ultrasonic plates, and other means of measuring physical quantities. Results. This work involves the direct measurement of the pressure difference in the airflow using thin nozzles. The research was conducted using a rotating installation UPG-48 and a gyroscopic motor assembled with a gyro unit. Conclusions. The signal (pressure difference) proportional to the angular velocity was measured using nozzles and then amplified with a jet amplifier. The studies showed that the sensitivity of the measuring device based on the proposed method is 0.6 Hz.