Study on the methods of measuring power of the rotating mechanisms Rustam Baratov, Murodjon Begmatov, Almardon Mustafoqulov, Farrukh Kucharov and Erkin Sabirov E3S Web Conf., 434 (2023) 01014 Published online: 12 October 2023 DOI: 10.1051/e3sconf/202343401014