Fig. 1. Concept of pitching machine to implement.
Fig. 2. Schematic of control module including PLC, inverter, and relay.
Fig. 3. Ladder program for PLC control.
Fig. 4. Photograph of UI implemented in HMI.
Fig. 5. Components of mechanism part (a) rotating wheel, (b) solenoid actuator.
Fig. 6. Principle of magnus effect on pitching ball.
Fig. 7. Experimental data of breaking ball (a) definition of movement, (b) movement of the ball.
Table 1. Comparison of theoretical and measured data on ball speed.
References
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