@inproceedings{inproceedings90f41a1d, title = {Low cost reflective fiber-optic sensor applied to resonance frequencies measurement of flextensional piezoelectric actuators}, author = {Sakamoto, João Marcos Salvi and Higuti, Ricardo Tokio and Silva, Emílio Carlos Nelli and Kitano, Cláudio}, year = {2007}, publisher = {SBF}, booktitle = {Encontro Nacional de Física da Materia Condensada} }