For the Pressure or Speed system, from the time an experiment starts,
it takes about 2 or 3 seconds for any system transients to die out.
Therefore, the experiment needs to run for at least about 5 seconds
before the set-point step occurs. It may take longer for the system to reach
its initial steady state operation point.
After the set-point change occurs, the system may respond to a final steady
state in a few seconds or longer, depending on the amount of damping
provided by the feedback control system
Lab Wizard suggestion for Pressure or Speed:
Length of experiment (sec) of 20 or more seconds
For the Flow system, from the time an experiment starts,
it takes about 5 or 6 seconds for any system transients to die out.
Therefore, the experiment needs to run for at least about 10 seconds
before the set-point step occurs. It may take longer for the system to reach
its initial steady state operation point.
After the set-point change occurs, the system may respond to a final steady
state in a few seconds or longer, depending on the amount of damping
provided by the feedback control system
Lab Wizard suggestion for Flow:
Length of experiment (sec) of 20 or more seconds
For the Voltage system, from the time an experiment starts,
it takes about 10 seconds for any system transients to die out.
Therefore, the experiment needs to run for at least about 15 seconds
before the set-point step occurs. It may take longer for the system to reach
its initial steady state operation point.
After the set-point change occurs, the system may respond to a final steady
state in a few seconds or longer, depending on the amount of damping
provided by the feedback control system
Lab Wizard suggestion for Voltage:
Length of experiment (sec) of 30 or more seconds
For the Level system, from the time an experiment starts,
(using the small tank)
it takes about 3 minutes for any system transients to die out.
Therefore, the experiment needs to run for at least about 5 minutes
before the set-point step occurs. It may take longer for the system to reach
its initial steady state operation point.
After the set-point change occurs, the system may respond to a final steady
state in a few minutes or longer, depending on the amount of damping
provided by the feedback control system
Lab Wizard suggestion for Level (small tank):
Length of experiment (min) of 15 or more minutes
The large tank takes about 2 to 5 times as long.
Adjust times accordingly.