[ATM] Active damping

[Ross Sackett <rsackett00@yahoo.com>]

Hi, all,

While showing my 8" f/4.5 travel scope on a 3-point
hybrid dob mount at the Stellafane mechanical
competition I had an interesting conversation about
active damping to reduce vibration.  I don't know much
about this.  It seemed to involve adding a mass that
would vibrate near the same fundamental frequency as
the rest of the scope to soak up the excess vibes. 
Some electronic or mechanical black box controls it, I
imagine.  I know something similar is done on big
buildings in quake zones.  Can anyone point to an
ATM-friendly source on this?

Ross


		
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