TY JOUR TI MEASUREMENT OF THE ANGULAR VELOCITY OF THE SHAFT OF A PISTON MACHINE KW unbreakable control; piston machine; angular velocity; encoder JO Modern Technologies and Scientific and Technological Progress AU Lavrik, A.A. AU El'hutov, S.N. PY 2023 IS 2023 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»