This thesis work comes up from an experience of six months in the dynamic test bench at the Energy Department of Politecnico di Torino. With the supervision of Engr. Manelli, Engr. Mancarella and Prof. D'Ambrosio, I was involved in an experimental activity that gave me the possibility to know and understand the principles and the life in the engine test bed. The main tasks I was in charge to do were supporting the acquisition activity, data analysis and post-processing. In addition, I assist in the maintenance of the testbed and the installation of new devices. The thesis presents the main activities I got involved.