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WHAT is is used for?
Servo position?
What is the travel time from one end to the other?
Double wiper contact or single?
The higher input impedance of A/D, the less change the series contact res=
istance will make when moving.
But if motorized linear pot, noise from motor?
Ray


On Tue, 18 Nov 2008 03:21:47 +0100, Info wrote:
>=A0Hi, I have a linear potentiometer that gives out about 3v p-p noise
>=A0when moved. This noise must be suppressed so the signal can be read
>=A0by an 12bit 0-10v A/D input. Ideal would be if the noise could be
>=A0suppressed below 0.01v That might not be possible in real world? If
>=A0not, I can live with 0.03v
>
>
>=A0This is how its connected:
>=A024vDC --- 12k resistor --- 5k lin. pot. --- 0vDC
>=A0Output from the 5k lin. pot goes into the A/D input (100kohm)
>
>=A0What would be the simplest way to smooth out the noise on the pot.
>=A0output? A cap (size?) in parallel with the pot's output?
>
>=A0TIA.




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