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A setback

A project log for Atomic Force Microscope - from ground up

The aim of this project is to make high grade all diy AFM.

100dollarhacker100dollarhacker 07/08/2023 at 14:250 Comments

It's hard to admit but this time I think I got stuck.

I think this is one of the hardest parts except building the Tungsten needle. 

Well the good news is that I was able to run Quartz crystal fork. Using AD9833 signal generator and NE5532 based attenuator. 

The yellow is 32.000KHz AD9833 signal and blue is QTF 32.768KHz. The problem is once QTF encapsulation removed, signal disappears. The next step would be using two rail power supply and more sensitive electronics. So yeah, I guess I will have to use LTSPICE to debug it. (It much faster than buying bunch of components and trying to debug it)

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