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Micromanipulators and Isolation tables!

Giddeon Nyquist giddeon_nyquist at hotmail.com
Tue Nov 4 18:57:43 EST 2003

Thanks for the input Francis, but I'm still in trouble here.  I think I 
may have fixed it today but I feel its only a temporary fix.
> Does jumping up and down on the floor make the shakes worse?
> (Get someone to do this for you while you watch.)

Yes it does.  But you would think that if the table is properly isolated 
this wouldn't happen.  This is one of my problems.

> I've only ever used Narashige or modified Huxley manipulators -
> no shakes with them.

The Narishige manipulators rule, but I only use them for sharp electrode.  
I really can't patch anything with Narishige. 

> Do the shakes happen all the time, or just when you are moving
> the electrode? Does the micromanipulator have servo motors? If
> so, what happens when they are powered off?

The manipulator does indeed have motors. When its powered off it the 
shakes are still there.

> Do you have an A/C unit blowing air round the room?

That is funny that you should mention that, since we do have a lot of 
vents in the lab.  But I don't think that is the MAIN problem since when 
I surround the recording chamber and the electrode with cardboard to 
block air currents the electrode still shakes.


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