Contactless linear rotary potentiometer

Details Contactless linear rotary potentiometer Contactless linear rotary potentiometer

H - Electricity

01

C

338/12

H01C 13/00 (2006.01) H01L 43/08 (2006.01)

Patent

CA 1037138

CONTACTLESS LINEAR ROTARY POTENTIOMETER Abstract of the Disclosure A contactless potentiometer which has a linear output characteristic is constructed with a pair of elongated, hollow cylindrical tubes which are made of magnetically saturable material and are aligned so that their axes form an angle less than 180°, with both of said tubes having at least one conductive wire coupled therewith which is interconnected with the wire that is coupled with the other tube, and a moveable magnet which is formed as a segment of a circle with a pair of straight sides that move adjacent to said tubes so that the total volume of said tubes that is magnetically saturated remains substantially constant while the inductance ratio of the tubes varies.

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