tracidfish
New Member
Hello
I have been given a task where I need to work out the transfer function for a system firstly using the step response method then secondly using the frequency responce method. The system has a transfer function that is a 1st order lag.
I have done both and have plotted the bode plots for the frequency response method.
My question is should the transfer function for the step response method and the frequency responce method be roughly the same? As it currently stands my gain is the same and yet my time contast is different.
The break point on amplitude ratio plot corresponds nicley my -45 degree point on my phase shift plots, so at least theese agree.
Thanks
I have been given a task where I need to work out the transfer function for a system firstly using the step response method then secondly using the frequency responce method. The system has a transfer function that is a 1st order lag.
I have done both and have plotted the bode plots for the frequency response method.
My question is should the transfer function for the step response method and the frequency responce method be roughly the same? As it currently stands my gain is the same and yet my time contast is different.
The break point on amplitude ratio plot corresponds nicley my -45 degree point on my phase shift plots, so at least theese agree.
Thanks