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I need to plot Amplitude vs. cantilever-sample distance in tapping mode. What I already can measure is Amplitude vs. vertical displacement. In other words, in an Amplitude vs. displacement curve which point can be assumed as a reliable reference to calculate the sample and chip position. I really appreciate your feedback.ThanksVahid
vvahdat@seas.upenn.edu
Vahid,
The point of reference you can use is the first drop in amplitude. This indicates first tip-sample contact. I do believe that the software allows you to do the signal vs separtion conversion automatically if you record also TM deflection.