A Conversation for Make Yourself a Scanning Tunnelling Microscope
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Cybernard Started conversation Mar 16, 2000
Ok this seemed simple enough but I lost you at the piezo-electric crystals. How do I get one? How do I use it? Some hints at assembly programming and what to do with the data would be nice though.
I think you also should watch out for temperature changes, they'll problary dopple the results (at least you have to do so when cutting holographs with laser light)
(Erm, disclaimer: I only have 47-63% clue of what I'm talking about)
Piezo-electric crystals
26199 Posted Mar 17, 2000
Piezo-electric crystals are fairly widely available... what you do, I think, is stick your needle on the end of a piezo-electric crystal, so that you can move the needle about by applying a current to the crystal.
Then, you monitor the current flowing through the needle, and move it using the crystal so that this current stays the same.
Probably 
.
26199 (Less that 99% certainty free)
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