At the bottom of this graph are the terms n=Fi/Fr or Fr/Fi The i may be a j. What do Fr and Fi stand for. Fr is probably frequency of resonance but Fi?
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Thanks, Mikek
What does Fi and Fr stand for
Jan 24, 2015
2 Replies
Fi = frequency in?
So n is the relation ship between the applied (input) frequency and the resonance e freq. Mark
Ok then I have I have no clue what the graph is about.
Hmm, upon further review, how about this.
If I have an LC that is resonant at 1000Hz, with a Q of 25. it will have close zero phase angle, but if I drop the frequency to 800Hz, or raise it to 1250Hz the phase angle will increase to 85 degrees. The higher the Q the faster the phase angle changes with a change in frequency.
Can I assume the 0.366Henry and the math at the top is not relevant to our discussion?
Thanks, Mikek
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