The motor, amplifier, and tach together represent the plant in this lab. The open loop TF is of the same form as that in Labs 1,2 and 3, i.e.
You can compute the plant's gain and time constant from the open-loop step response, just as was done in the previous labs. Or you can simply use the motor that you used in the previous lab. Since you should now be familiar with the identification procedure used in the previous labs, the details of the procedure are not included here. For more details, bring one of the previous lab handouts. However, a brief outline of the procedure is included below.
|Connect Power Supply to Amplifier|
|Connect Motor and Tach to Amplifier, Oscilloscope and Function Generator|
|Set the function generator and oscilloscope. |
|Measure Step Response, Obtain K and|
Next-Closed Loop Response