'a' and 'b' are merely two different viewpoints of the same system... why would Y(s) be different between them? Look at it from an instantaneous instant, not like a digital system where states need time to work through the system.
Thank you for the reply
It’s simultaneously the same thing !?!?
But it’s just hard to understand practically.
Like this example.
We put a desired goal into the system.
And the sensor detect the output.
Then the sensor give a signal back to amplifier to compare the desired goal and generate a new output.
So Y(S) in a will be different than in b
Or it’s a very quick action that it is simultaneous so the output will be the same?
> Or it’s a very quick action that it is simultaneous so the output will be the same?
The output Y(s) is the same output that is fed back through H(s) and subtracted from the input (negative feedback loop).
Is the physical feedback instantaneous? Depends on the physical system.
But either way the definition of H(s) will include any delays or other filtering that occur in the feedback loop of the physical system..
The whole purpose of doing this in Laplace transform space is to replace integrals and derivatives with algebraic equations. In Laplace space, all you care about is the frequency space results. The inverse Laplace transform brings you back into the time domain and its concomitant time and phase delays
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!
