
#1
Jun111, 05:37 AM

P: 46

1. The problem statement, all variables and given/known data
In control engg. we define the order of the system as (or atleast as far as I have understood as) Nu/s^m*(s+a)(s+b).... I cannot understand the base for such classification? Why are we classifying systems based on the number of poles they have on origin? 2. Relevant equations 3. The attempt at a solution 



#2
Jun311, 11:14 AM

P: 639

No, the order of the system is the number of poles (at the origin and elsewhere).




#3
Jun311, 12:57 PM

P: 27

CEL is correct.
Something to add however is the way you have written the transfer function  it's done for a purpose. In controls seeing how many poles are at the origin, you're s^m part of the denomenator, has many ramifications that can be crucial when interpreting a system response or designing for one. So in seeing, and perhaps formatting a transfer function in this fashion, it is an aesthetic move but can make things easier. 



#4
Jun411, 09:44 AM

P: 46

Order of system
thanks guys I was confusing myself with the order and type of the system... good I could get that clear just in time :)



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