File:Universal Resonance Curve.svg
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English: Frederick E. Terman's "Universal Resonance Curve", a symmetric approximation to the normalized response of a resonant circuit; abscissa values are deviation from Fc in units of Fc/(2Q), the 3dB-half-bandwidth; ordinate is relative amplitude, and phase in cycles. The upper (green) dashed phase curve is from a system of two poles and no zero, which lags 90 degrees (0.25 cycle) at resonance. The other (red) dashed curves are for a pair of poles with a zero at DC (at s=0 in Laplace notation), which is what is usually approximated by the universal resonance curve, or was in Siebert; in terms of magnitude gain, it is asymmetric in the opposite direction of the green curve. These curves are calculated for a Q value of 4; higher Q values will give curves closer to the universal curve. The X's represent deviations of one half-bandwidth (plus or minus Fc/2Q, the -3dB points), gains of 0.707, and phase shifts of 45 degrees (0.125 cycle). |
| Date | |
| Source | self made, roughly about Siebert (1986) Circuits, Signals, and Systems p. 113 |
| Author | Richard F. Lyon, User:Dicklyon |
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 03:14, 19 October 2009 | | 512 × 362 (36 KB) | Dicklyon (talk | contribs) | {{Information |Description={{en|1=Frederick E. Terman's "Universal Resonance Curve", a symmetric approximation to the normalized response of a resonant circuit; abscissa values are deviation from Fc in units of Fc/(2Q); ordinate is relative amplitude, and |
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