“…In this paper, the review is based on the most popular controllers used in pneumatic actuator system such as, a proportional integral derivatives (PID), a sliding mode controller (SMC), and an adaptive controller. All of these controllers were stated in the previous studies conducted by Huang et al [16], Jiapeng and Tao [17], Reznik et al [18], P. Mishra et al [19], R. R. Sumar, et al [20], O. Arrieta et al [21], V. Prabhakaran et al [22] and Chiang & Chen [23]. The details of the controller design of a proportional integral derivatives (PID), sliding mode controller (SMC), and adaptive controller will be clearly described in the following section.…”