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Dear Bruno,

I cannot really help, just share that me made similar experiences. We experienced a phase drift even with a single resonant scanner from EOPC locked to a master frequency used for other components. Unfortunately, we didn’t find out how to get rid of this drift and EOPC could not help. We only got rid of the drift with an in-house built driver then.

I would be interested to hear if you can resolve it. 

Good luck!
Nino


> Am 20.02.2021 um 10:20 schrieb Bruno Pichler <[log in to unmask]>:
> 
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> Dear list,
> 
> Has anyone used EOPC's PLD-2SXY driver (http://www.eopc.com/driver_pld2sxy.html) to run two resonant scanners in phase-locked mode? 
> I'm using their 8kHz SC-30 scanners, and they run in synch for maybe a minute or so, but then start to drift slowly out of phase. Has anyone else seen this behavior?
> 
> Thanks,
> Bruno
> 
> 
> ______________________________________
> Dr Bruno Pichler
> Independent NeuroScience Services INSS
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