the active zone of an electromechanical transducer (ET) contains several tens of geometrical parameters, each of which has a definite influence on the technical characteristics of the generator. When building a computer model, it is impossible to reflect the influence of each single input parameter on the output. Therefore, we propose to introduce a quantitative assessment of the influence of variations in all the geometric parameters of the active zone of an electromechanical transducer on the electromagnetic parameters of technical characteristics, and then select the most significant ones.