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Is there a way to measure the inductance value change between to two points by theory or simulation?

Tony Philip
Intellectual 260 points
Other Parts Discussed in Thread: LDC1312

Hi there, 

I am planing to implement a LDC1312 for a linear distance measurement device, I wanted to calculate the change when placing the sensor at two different distances(min sensible distance and max sensible distance) by theory before I move into implementation,so that I can have a RANGE of values which I can work with. Is there any simulation I can do in this regard?

I am planing to use a circular coil(thickness and turns not yet decided)  and metal object will be a copper plate parallel to each other.

  • 0
    TI__Genius 14270 points

    Hello Tony.

    We often use the normalized response curve (correcting for nominal Rp & L and using x-axis as (target distance)/(sensor diameter). Note that this assumes an aluminum target that is larger than the sensor. You would need to correct for different target conductivity and possibly skin depth.

    An alternative would be to use FEMM ( which is a free finite element magnetics modeling package.

    Regards,

    ChrisO