PWM Control and Identification of Frequency Characteristics of a Pneumatic Actuator using PLC Controller. Elektronika ir Elektrotechnika, [S. l.], v. 123, n. 7, p. 21–26, 2012. DOI: 10.5755/j01.eee.123.7.2369. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/2369.. Acesso em: 5 dec. 2025.