Fig. 7: Experimental results of speed control for the photon-driven DC motor system. | Nature Communications

Fig. 7: Experimental results of speed control for the photon-driven DC motor system.

From: High-performance photon-driven DC motor system

Fig. 7

The system’s capability to track a sinusoidal speed setpoint with a 0.05 Hz frequency under a constant load torque of 40 mNm; global picture (a) and local picture (b). The system’s response to variations in load torque; starting from a base speed of 347 rpm with a 40 mNm load, the torque is reduced to 0 mNm at about 15 s, and subsequently restored to 40 mNm at about 35 s; global picture (c) and local picture (d).

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