Positioning or tracking via pneumatic servosystems has not been widely used in practical applications due to high cost, complexity and susceptibility of the system to fluid contamination. In this paper a low cost, simple, pneumatic servo system is developed to achieve accurate tracking as well as positioning control without the use of conventional servovalves. This control system is essentially an on-off servo system, which utilizes a PWM controller incorporating with the PI action. Since this control system includes critical system parameters such as the pulse frequency, pulse width of the controller, and the feedback gain parameter, a series of experiments was performed to investigate the effects of these parameters on the steady state and transient response characteristics.
|Title of host publication||Unknown Host Publication Title|
|Number of pages||8|
|Publication status||Published - 1986|