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how to adjust force curve profile in version 8 software?

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Top 75 Contributor
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lujie posted on Tue, Apr 19 2011 10:58 PM

our group just updated our multi-mode and use the new software nano  version 8. However instead of  deflection, it has deflection error.

and in manual it says just choosing plot the deflection error vs z?

is that the  final force curve we get? is any difference between deflection error and deflection?

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Answered (Verified) replied on Wed, Apr 20 2011 11:50 AM
Verified by lujie

Hi Lujie,

The deflection error is the setpoint corrected deflection signal. Nanoscope always used the deflection error in force curves executed from a contact mode scan but historically named it deflection. Nothing has changed but the naming.

Stefan

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Suggested by Guillaume A.

In my mind, there is any difference between deflection and deflection error. They just changed the term.

Guillaume

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Answered (Verified) replied on Wed, Apr 20 2011 11:50 AM
Verified by lujie

Hi Lujie,

The deflection error is the setpoint corrected deflection signal. Nanoscope always used the deflection error in force curves executed from a contact mode scan but historically named it deflection. Nothing has changed but the naming.

Stefan

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Top 10 Contributor
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Bruker Employee
Suggested by Bede Pittenger

To be clear, the difference between the "Deflection error" and the "Deflection" is that the "Deflection Error" = "Deflection" - "Setpoint".  In versions of NanoScope prior to (approximately) version 7, the "Deflection Error" was labeled "Deflection".

--Bede

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Top 75 Contributor
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lujie replied on Wed, Apr 20 2011 1:46 PM

Thanks for the clarification, Stefan and Bede.

I still have some problems when playing with the new software. Every time when i engage successfully and switch to ramp window. the vertical signal changed to over 0.5 something like that and the retract and approach seems far away from each other. Can you give me some suggestions  base on your experience?

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Top 10 Contributor
288 Posts
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Bruker Employee

Lujie,

Can you post the force curve to hep understand the issue? The raw file is always better, but a bitmap of the curve will also help.

Here is a procedure to post files: http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/t/526.aspx

Thanks,

Steve

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replied on Thu, Apr 21 2011 11:33 AM

In addition to Steve's suggestion can you pleae also let us know what cantilever and sample you ar using?

Thanks,

Stefan

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