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Q1- The theory is the same as what is used on Innova, but the procedure is a little different. I'll send you some additional information by email. Q2- The NanoScope V lockins are actually highly configurable, either using internal signal routing or routing through the NSV front panel. Check out the "generic lockin" panel. Q3- Sure, probes
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The "Deflection Error" channel is just deflection minus the setpoint. You would use this channel if you wanted to attempt contact mode MFM. But as Pete has said, contact mode MFM is unlikely to be the best choice. I can't think of any circumstance where it should be preferred to tapping MFM. Regards, -Ben
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No, there is no tip coating on OTESPA probes. The Al coating is backside only for better reflectivity. MESP or SCM-PIT probes are commonly used for KPFM. If you like the visible apex tip feature of the OTESPA probes, then you might also check out the OSCM-PT probes. Details for each can be found at Bruker Probes . Regards, -Ben
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Hi, Thanks for the nice feedback. I'm glad you find the new features useful. The emphasis on this release was on the indentation applications, but we'll want to implement additional features in the future for unfolding/binding and other pulling applications. Any ideas and requests would be quite welcome. Regards, -Ben
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Hi Dave, The deflection sensitivity needs to be calibrated each time the probe itself or the laser alignment is changed. This includes switching between air and fluid operation, which usually means switching probe holders. But even if the same probe holder were used for both air and liquid there is always some shift in the laser path due to the different
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I'm happy to announce the latest version of NanoScope Analysis, version 1.40R2. For anyone not already familiar with it, NanoScope Analysis is a free software package for analyzing data collected using Bruker SPMs. This latest version includes a number of new features for force curve analysis: • Modify Force Parameters: Update key parameters
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Hi Stefano, I'm not aware of any active AFM-focused internet forums that are not sponsored by an AFM company. We do get good user participation here on the NanoScale World though. I really don't see any cause for concern. Though run by Bruker, the discussions here only receive the minimum of moderation to prevent occasional spam-related problems
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Hi Stefano, Don't worry, the crocodiles don't bite! The low noise head definitely has benefits over the old MultiMode head. But the name could be a little confusing, so it's good that you ask specifically what things are improved. The low noise heads were developed specifically to reduce the phenomena of laser interference. This was sometimes
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The stepper motor on the original BioScope and BioScope SZ was controlled via serial communication to a stepper motor driver in the electronics box that sits immediately adjacent to the microscope. The stepper motor drive signals are not accessible through the SAM. Only the MultiMode (and old AFM/LFM models) uses motor drive signals on the main 37-pin
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Jonas, This idea about a bad Z board makes a lot of sense. NanoScope controllers use three digital-analog converters (DACs) per axis. One controls offset, another controls the scale, and another performs the actual scan. The concept is that the full bit resolution of the DACs is available no matter if you are doing a very large scan or a very small