Robotic Activity

The robot was built in a previous class and it was connected to a program that allows it to run and control its speed. In the robotic activity, we looked at the program measurement for the robot distance at a particular speed. At different power levels and time, the numbers of turns, distance and rotation was changing. We tried to measure the distance of the car with a ruler and see the difference between both methods. Our calculations showed that there was a small difference in between the robot and the ruler measurement. The table below presents the date we got.

Power     Time         Rotation      Turns       Distance      Distance        Percent error

                                                                (Robot)         (Ruler)

60         1 sec         419-425       1.163          .20 m            .23 m              13%

50         2 sec         685-690        1.902         .33 m            .35 m              15%

40         2 sec         478-480        1.327         .23 m            .29 m              23%

35         3 sec         608-610        1.688         .29 m            .30 m               3%

30         5 sec         827-829         2.29          .40 m            .40 m              0%

These  are formulas we used to calculate the percent error:

1) Average = (Robot distance + Measured distance) / 2

2) Percent error = (Robot distance – Measured distance/ average) x 100

This activity introduced us to what does a robot consist of and how does it work. We looked at how far the car can travel at a specific power level and time. The error in measuring the distance is probably due human mistakes beside other factors.