[time-nuts] synchronizing a large number of weaklycoupled oscillators

[Bob Camp]

Hi

I think in this case we're talking more about phase coherent situations than about simple interaction.

Bob

On May 13, 2010, at 1:46 PM, Hal Murray wrote:

> 
>> With physical oscillators coupling is limited by the speed of sound (in the
>> medium, with pendulum clocks wood is lots quicker than air with 3-4 km/s)
>> with electronic oscillators the speed of light. Latter means that their
>> distance has to be short enough so that they lie within each other's
>> lightcone within roughly the period of oscillation orelse they couldn't
>> possibly causally influence each other. 
> 
> That doesn't make sense to me.
> 
> Why can't oscillators interact if they are separated by multiple wavelengths?
> 
> The control loop probably gets more complicated if the delays are longer, but 
> it's a periodic signal.  You can lock up with an offset of any integral 
> number of wavelengths.
> 
> -- 
> These are my opinions, not necessarily my employer's.  I hate spam.
> 
> 
> 
> 
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