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Update Sens in PFQNM

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8 Posts

Points 90

Amir Bahrami posted on Mon, Nov 2 2015 4:15 AM

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Hi everyone;

I was wondering, what exactly happens during the operation of the Update Sens button in PFQNM mode, while imaging on the PS-LDPE reference sample for example?

Thanks a lot in advance

Cheers

Amir

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Teddy Huang replied on Sun, Nov 22 2015 7:45 PM

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Verified by Teddy Huang

Hi Amir,

I believe you're asking about the DDS3 sensitivity. Long story short, the PeakForce tappping amplitude is, says, 150 nm. However, how do we know it's really 150 nm? So this requires calibration. Before that, one has to know the deflection sensitivity of the cantilever first.

Please take a look at Yueming's PFQNM training here:

http://www.bruker.com/service/education-training/training-courses/afm-optical-training-courses.html

It has some more details in the video.

Thanks,

Teddy

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