Afifah Amatullah EN, Ekawita R, Yuliza E. COMPARISON OF INFRARED AND OPTOCOUPLER SENSORS PERFORMANCE FOR LAB-SCALE RPM MEASUREMENT SYSTEM. IPR [Internet]. 2022May20 [cited 2024May20];5(2):130-6. Available from: https://ipr.unram.ac.id/index.php/ipr/article/view/150