Figures (12)  Tables (0)

    • Figure 1. 

      (a) Front view of upper unit: 1. circular flat; 2. circular plate; 3. ring gear. (b) Top view of the upper unit.

    • Figure 2. 

      Sketch of developed lower unit.

    • Figure 3. 

      Schematic view of lower unit: 1. four leg stand, 2. position sensor, 3. pinion gear, 4. motor, 5. brass pulley, 6. idler gear, 7. C clamp.

    • Figure 4. 

      Photograph of positioning and indicating unit.

    • Figure 5. 

      Position indicator of spray delivery pipe.

    • Figure 6. 

      Developed microcontroller-based embedded system.

    • Figure 7. 

      Sketch of automatic control unit for spray delivery pipe.

    • Figure 8. 

      Developed laboratory setup for the air blast sprayer.

    • Figure 9. 

      Schematic layout of the automatic spray pipe positioning and indicating system.

    • Figure 10. 

      Real-time position control of spray delivery pipe.

    • Figure 11. 

      Real-time response for every 30° rotation of spray delivery pipe.

    • Figure 12. 

      Comparison between set position and current position of delivery spray pipe.