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  • Re: signal access module

    Hi Deepak, What kind of microscope are you using? A Multimode? Do you have an 'extender' box between the microscope and the controller? --Bede
    Posted to SPM Digest (Forum) by Bede Pittenger on Wed, Jul 15 2015
  • Re: Signal Access Module-RS232

    Sorry, the dsub-9 connector on the signal access module does not provide digital access to the data and control signals. On our older controller architecture there was a provision for basic serial communication through the main 37-pin connector interface. These lines (just TXD, RXD and ground) were broken...
    Posted to SPM Digest (Forum) by Ben Ohler on Wed, Oct 24 2012
  • Re: STS curve using lock-in amplifier

    Dear Ki-Rak, Can you send me the manual for the Lock-in Amplifier you are using, I'd like to know what exactly are ADC1, ADC2, A, OSC Out. Here is my guess: ADC1 is to read in the modulated data, in this case, tunneling current. OSC Out is the AC drive signal, in this case, the dV. "A"...
    Posted to SPM Digest (Forum) by Chunzeng Li on Fri, Jan 28 2011
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