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- Experiment 1: the initial voltage was kept constant while varying the pwm signal. The car is run twice in a row for 250 seconds from a starting voltage of 16.8V (turned off). See figure experiment1.png. The speed always reaches a peak and then decrease to a steady state value. The second run starts more or less from the steady state value. The PWM does not seem to affect neither the time constant nor the steady state value that is more or less always 200 mm/s below the peak.
- Experiment 2: the pwm was kept constant while varying the initial voltage. The car is run only once. See figure experiment2.png. From starting voltage 16.9V to 16.5V the speed has basically the same trend. The steady state value and the constant time becomes lower below 16.4V.
- Experiment 3: the car is run 3 times in a row to check if the third time the speed dynamics changes again. See experiment 3.png. The third time the car has the same behavior of the previous run.
- Experiment 5: the car is left turned on for 25 minutes before running to check if the capacitor gets discharged even if the car is not running. See experiment 5.png. The capacitor mantains its original levelcar's speed is not affected.
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- Experiment 6: the car is run for 200 seconds, then it is left on for other 200 seconds without running and then run for other 200 seconds. See experiment 6.png. The car's speed has the same peak as the previous run.
CAMERA MEASUREMENT ERROR CORRECTION
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