Caldeira, André Francisco, Charles Rech, Cristiano Frandalozo Maidana, Simone Ferigolo Venturini, and Antônio Carlos de Oliveira Pedra. “Feedback Control Applied to a Low Cost Ball-in-Tube Air Levitation Plant”. Ciência e Natura 45, no. esp. 1 (October 2, 2023): e84132. Accessed January 25, 2025. https://periodicos.ufsm.br/cienciaenatura/article/view/84132.