How do I find the transfer function of real components/systems?
Hello, I've been studying basic control theory for the past 2 years as a part of my mechatronics degree I am doing for the army of my country.
I have found my self asking how to actually model any type of system, what's the approach?
I have no idea what the most simple example can even be, but let's say I have a heating system which just heats up a metal plate using convection, and a thermocouple reading off of it. The system is trying to stay at a certain degree by lower or up the amps/volts. (I think its volts) This is truly the simples I could think of, and totally theoretical, I don't have an actual system I am trying to figure out. I just want to understand how do I figure it out.
How do I take this information and figure out a model for this system and eventually doing a Laplace transformation for it to get it stable at the steady state?
Currently my professor is on leave, for idk how long.
Got any ideas? Advice? Resources for me to look for?