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Re: [Phys-l] Oscillator amplitude(Q) question.

On 5/4/2011 7:22 PM, Bernard Cleyet wrote:
If one wishes to increase the amplitude of an harmonic mechanical oscillator when driven at its resonance frequency, one increases the Q. Not necessarily. Please comment.

Is this not necessarily true of an electrical oscillator, also? [RLC oscillator]

bc wonders about cavity oscillators, also.
If one wishes to increase the amplitude of an oscillator, one can increase input power, or decrease
the power dissipation.
Power dissipation can be reduced by reducing the resonant frequency at constant energy loss per cycle,
or by reducing the energy loss per cycle at constant frequency.

Is this what you meant?

Brian W