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Dear all, I am sorry that I need to re-open this issue. Unfortunately the gains were not the explanation for the bad triggering. It happens sometimes also with automatic gains, and varying the gains manually doesn't help. If it happens, all the HSDC curves look like that. I found that if I do not Auto Config after Engaging the live force curves
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Dear all, Still an open issue. What I could find out in the meantime is the following: ad 3. By decreasing "Tip Image Size" the software evaluates more tips. I found that a "Tip Image Size" of about 50 nm was enough for me. The other questions are still open. Have you got any ideas? Best regards, Dietmar
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I was told something similar. However, the deflection sensitivity on the saphire is a good first step. If you want to tune it afterwards you must compare at least two different materials of known modulus and adjust the deflection sensitivity in a way that the ratio between the measured moduli is correct. Let's say you measure ramps on one reference
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Dear Aaron, I guess your second trial with the images was not more successful thatn the first one. Try to follow these tips: http://nanoscaleworld.bruker-axs.com/nanoscaleworld/forums/t/526.aspx Regarding your questions: It would be interesting to know which probes you use (spring constant etc.). The deflection sensitivity must be calibrated on an "infinitely"
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Guess nobody knows such a command?
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Dear all, I figured out how to avoid the issue. It had to do with the fact that I set the Gain manually after calibration: In order to keep the imaging settings the same I fixed the Gain at one value the same way as I did it for the Peak Force Setpoint and other values. Although my Gain was normally as high as 50 this was obviously still to low for
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Dear community, I am trying to improve the way I qualify my AFM tips. So far I am not completely sure if I'm do everything correctly, especially as both the NanoScope Analysis software (version 1.40 R3Sr4) and the help function let the user chose many values I am not sure what they do. I had to see that already quite small changes in those values
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The NanoScope version I use is 8.15 (Build R3Sr4).
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Dear Bede, On that day every HSDC or PFC curve looked like that. It was just the Point-&-Shoot curves that were fine. However, the real time force curve looked okay - it was just sometimes very wavy, going up and down all the time. I clicked "AutoConfig" several times to get rid of that behavior, but it didn't help. I use NanoScope
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Dear community, I have an issue regarding my force-distance curves. I produce Peak-Force QNM image that are nice (as I think) and I can create good force-distance curves using the Point-&-Shoot option. However, using the High-Speed Data Cature (HSDC) option or the Peak Force Capture (PFC) option, I fail miserably. The reason seems to be bad triggering