The Nanoscale World

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  • Re: PFM

    Certainly! There is no special requirement to do PFM (just use contact mode and configure the lockins through generic lockin). I recommend putting the AC bias to the tip and reducing the 'amplitude limit' for the lockin that you are using. I think lockins 2 and 3 are preferred depending on your...
    Posted to SPM Digest (Forum) by Bede Pittenger on Thu, Jul 20 2017
  • Re: Starting VITA with Nanoscope V

    Great. Now you can check which COM port on your PC the driver is using. Enter that COM port number (in this example it is COM5) into the VITA hardware setting, choose Hardware as flow control and the highest transfer speed. In addtion you have to make the deflection signal (or deflection error if that...
    Posted to SPM Digest (Forum) by Anonymous on Wed, Jun 1 2011
  • Re: Custom controller implementation in Nanoscope V

    Umar, For what you describe I think Stefan’s recommendation is very good. You can interrupt the loop using the breakout box and inject your custom signals. You can also control the PI gains via NanoScript or COM through Matlab, Labview, or other (and even read the PSD signal), however, this communication...
    Posted to SPM Digest (Forum) by Stephen Minne on Tue, Mar 8 2011
  • Re: Electrical measurements and SAM V

    Tim, #1 is correct. Remember, NEVER put a high voltage input into the SAMV #2 The best way to do this is not to use the SAMV, but is from within the NSV. To do it in the NSV you will need to separate the AC and DC, applying one to the tip and the other to the sample. In general, the performance of PFM...
    Posted to SPM Digest (Forum) by Stephen Minne on Wed, Nov 17 2010
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