[sdiy] Keyboard Encoder Experiments...

Jim Patchell patchell at cox.net
Tue Feb 12 02:43:05 CET 2008


The RFI should not be a problem because of the way I will be detecting 
the signal (synchronous detectors).  They are pretty good at rejecting 
anything that is not coherent with the signal of interest.

Tim Parkhurst wrote:
> 
> Hi Jim,
>  
> I would think that with enough 'smarts' behind the processor, these 
> sensors could also yield velocity and pressure info. The only thing that 
> worries me a little is all those bobbins just waiting to pick up RFI, or 
> just as bad, broadcast 10kHz (or whatever the driving frequency would 
> be) into sensitive circuits nearby. Some shielding and a little care 
> should avoid problems, but still the potential for making a 3-octave 
> antenna exists.
>  
>  
> Tim (could see Morse Code being interpreted as MIDI messages) Servo
> --
> "Imagination is more important than knowledge." - Albert Einstein



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