Hi  Paul,
                   Do not know if this is any interest to you with your
ignition system, (I am a bit thick when it comes to electronics), anyway
it may be useful.
http://www.globalspec.com/FeaturedProducts/Detail/DigiKey/TI_LDC1000_Inductance_to_Digital_Converter/250152/1
         John Burey


Interesting but I can't think of a use right now.

Paul Lamar

That is an eddy current sensor; but it requires a sensing coil that is part of the PCB layout. Precision close range distance measurement with high resolution.

Robert Leclercq


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