Millan87

Thank you very much, I understand better now, your help was useful to me.

First of all, thank you for your answer which allows me to better understand the subject. Regarding of my meaning of "inducing the resonance", I will contextualize my question. I am interested in a technology / method called Blue-Ray-based micromechanical resonator which allows to follow the change in mass of material attached to the surface of microbridges thanks to the resonance change of these microbridges. In the article I read, it is stated that "Microbridges were actuated by means of a piezoelectric crystal, which was set to linearly sweep a range of frequencies in the vicinity of the theoretically predicted resonance frequency. ”. Having little knowledge in the field, I wonder about the function of this piezoelectric crystal and therefore I find it difficult to grasp its usefulness in the method. If you can help me it would be great. Thanks

Hello, I want to know if someone can explain me how the resonance is induced in micromechanical resonator please? Is it with a piezoelectric crystal?