Transfer function measurement in a mechatronic system

摘要

Device comprising at least one electromechanical system and an electronic control unit comprising a feedback loop which connects the input and output of the electromechanical system and which includes a digital corrector. The device comprises a software module having an input and an output connected respectively to the output and the input of the electromechanical system. The software module is programmed to, for each frequency of a set of frequencies to be analyzed: emit a sinusoidal excitation signal on its output and recover a response signal on its input; model the response signal by a Fresnel representation and filter it around the excitation frequency by at least one Kalman filter to obtain a state vector of the filtered response signal; obtain at least one transfer function of the system from the modeling and the excitation signal and the input signal. FIGURE OF ABREGE: Fig. 1