05-03-2014, 12:08 PM
Circular pots. with a non-linear law. Would it not be possible to exchange the positions of the wiper and the track, so that the track is the non-resistive conductor and the 'wiper' is the resistive element? That way, the resistive element could be shaped as a logarithmic spiral, producing a logarithmic law. That approach could be used to produce any law that was required.
However, something tells me that there is a snag in that idea, somewhere, since to my knowledge, that has never been done. And the companies like Bourns etc. must have huge R & D resources.
Al.
However, something tells me that there is a snag in that idea, somewhere, since to my knowledge, that has never been done. And the companies like Bourns etc. must have huge R & D resources.
Al.
