Re: [TCML] Q

[Ed Phillips <evp@xxxxxxxxxxx>]

I may not be 100% clear on the strict definition of Q.

My understanding of Q is that it is a measure of the losses present in a component."

	The Q of a device is the ratio of the energy STORED to the energy DISSIPATED [per cycle if you wish].  If the Q is 100 the stored energy is 100 times the energy lost per cycle.  In a series electrical circuit it's the ratio of the reactance to the resistance.  True for electrical, mechanical, pneumatic, etc. systems.  If the Q is 100 then roughly 10% of the energy is lost in 10 cycles.  

	For more exotic relationships look up "logarithmic decrement" in Google.

Ed


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