PRESSURE MEASUREMENT CHANNEL BASED ON A SEMICONDUCTOR MEMBRANE STRAIN GAUGE
FOR THE UAV INFORMATION AND CONTROL SYSTEM 

Boris V. Chuvykin, Doctor of technical sciences, professor, professor of the sub-department of information and computing systems, Penza State University (40 Krasnaya street, Penza, Russia),chuvukin_bv@mail.ru
Elizaveta A. Ryblova, Design engineer, SKB JSC "Electromechanika" (51/53 Gogol street, Penza, Russia), Elizaveta.ryblova@mail.ru 
Vadim S. Volkov, Candidate of technical sciences, associate professor, associate professor of the sub-department of instrument engineering, Penza State University (40 Krasnaya street, Penza, Russia), vadimv_1978@mail.ru
Aleksei A. Trofimov, Doctor of technical sciences, associate professor, professor of the sub-department of information and measuring equipment and metrology, Penza State University (40 Krasnaya street, Penza, Russia), alex.t1978@mail.ru

Background. The relevance of the use of unmanned aerial vehicles for solving problems in various branches of technology is considered. The features of constructing altimeters of various types are analyzed. The aim of the work is to improve the characteristics of barometric altimeters based on pressure sensors used in control systems of unmanned vehicles used in UAVs. Materials and methods. The study is carried out by the method of simulation of sensitive elements in the COMSOL Multiphysics software package and determination of the sensitivity of the transformation and the linearity error of each of them. Results. The geometric parameters of the sensing element are determined, the sensitivity of the conversion and the linearity error of the output signal are calculated. Conclusions. A profiled membrane with certain geometric parameters allows you to achieve the best technical characteristics in comparison with flat membranes in terms of conversion sensitivity and linearity error of the output signal.

unmanned aerial vehicle, information and control system, flight altitude, semiconductor sensing element, linearity error, conversion sensitivity, profiled membrane

Chuvykin B.V., Ryblova E.A., Volkov V.S., Trofimov A.A. Pressure measurement channel based on a semiconductor membrane strain gauge for the uav information and control system. Izmerenie. Monitoring. Upravlenie. Kontrol' = Measuring. Monitoring. Management. Control. 2025;(2):5–15. (In Russ.). doi: 10.21685/2307-5538-2025-2-1