universal resonance curve

universal resonance curve

[¦yü·nə¦vər·səl ′rez·ən·əns ‚kərv] (electricity) A plot of Y / Y0 against Q0δ for a series-resonant circuit, or of Z / Z0 against Q0δ for a parallel-resonant circuit, where Y and Z are the admittance and impedance of a circuit, Y0 and Z0 are the values of these quantities at resonance, Q0 is the Q value of the circuit at resonance, and δ is the deviation of the frequency from resonance divided by the resonant frequency; it can be applied to all resonant circuits.