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Why the square wave is better to observe damping effect in RLC circuit?'' or ''Why do we use the square wave to observe damping effect in RLC circuit?'
Why the square wave is better to observe damping effect in RLC circuit?'' or ''Why do we use the square wave to observe damping effect in RLC circuit?'
Perhaps you are referring to a step signal, rather than a square wave (which is assumed periodic). There are well known metrics used to determine either the damping factor of a 2nd order circuit (a simple RLC circuit fits in this category), as well as its oscillatory factor. Anyway, as Klaus pointed out, the question is not clear at all.
All the measurements and calculations are done after one edge... no need to consider a second or any other edge..
Thus a single edge is sufficient: We call this a "step response". --> as already suggested in post#3.
The damping is calculated from the envelope.
Without any input edge you don´t see the envelope.
A step input signal is easy to generate and gives very meaningful results.
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