Research Article

One-Degree Aerial Device: Control and Experimental Development

Figure 4

Optical sensor instrumentation and control law. is the potentiometer to instrument . and are potentiometers to tune the control law. is the controller gain adjusted via a trimmer of . is the optical sensor response. The output signal at point is fed to the second part of the controller, as shown in Figure 5. From this schematic, proportional and integration actions are realized on the input signals by the operational amplifiers. Operational amplifiers are realized by using the integrated circuit LM258. Finally, .