Inductive magnetic saturation displacement sensor

A position sensor system comprising:

• a first part comprising core layer having first and a second coil and a core Iayer on a substrate, said first and second coil having a coupling therebetween, said first coil and said second coil are located on opposite sides of said core layer, saturation of said core layer by said magnet creating said coupling between said first and second coil;
• an alternating current source connected to said first coil;
• a signal processing device connected to said second coil and;
• second part comprising a magnet movable substantially parallel to said first part to alter said coupling said magnet operable to generate a field of greater magnitude than said core layer over an area substantially equivalent to said core layer such that said field defines a relative position of said first part relative said second part.

A position sensor system comprising:

• first part comprising a core layer having a first and a second coil and a core layer on a substrate, said first and second coil having a coupling therebetween;
• an alternating current source connected to said first coil;
• a signal processing device connected in said second coil, layer includes a first and a second core layer located on opposite sides of said substrate such that movement of said magnet reduces said coupling between said first and said second coil;
• and
• a second part comprising a magnet movable substantially parallel to said first part to altar said coupling said magnet operable to generate a field of greater magnitude than said core layer over an area substantially equivalent to said core layer such that said field defines a relative position of said first part relative said second part.