The Nanoscale World

what's the difference between Peak force error in QNM and phase in tapping

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lujie posted on Thu, Nov 1 2012 10:40 PM

what's the difference between Peak force error image got  in QNM and phase image got in normal  tapping mode? 

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Peak Force error can be compared to deflection error in contact mode and amplitude error in tapping mode. Peakforce error is the feedback signal in PFQNM  like the deflection error is in contact mode and the amplitude error is in tapping mode. You get no real information out of these signals, they "just" make nice pictures (3d) for the eye. 

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Top 10 Contributor
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start reading and there is a lot more......

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Top 75 Contributor
11 Posts
Points 135
lujie replied on Fri, Nov 2 2012 5:40 PM

Hi, Joop, i already got that note but is i missing something?

We get several channel from this new mode like adhesion or modulus, dissipation, but what's the peak force error stands for? the property of hardness? 

  • | Post Points: 12
Top 10 Contributor
60 Posts
Points 651

Peak Force error can be compared to deflection error in contact mode and amplitude error in tapping mode. Peakforce error is the feedback signal in PFQNM  like the deflection error is in contact mode and the amplitude error is in tapping mode. You get no real information out of these signals, they "just" make nice pictures (3d) for the eye. 

  • | Post Points: 11
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