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driving a piezoelectric element by checking its capacitance

driving a piezoelectric element by checking its capacitance

driving a piezoelectric element by checking its capacitance

(OP)
Dear all,

I was somehow sure from by memories that - for static operations - I could correct the hysteresis of a piezoelectric element by measuring its capacitance.
Now that I have the problem to correct for hysteresis in an open loop that I can not touch, looking around it seems that my pre-concept is not mentioned.

Now, if I am not wrong capacitance is measured by means of a AC signal, so in other words, while i am measuring the capacitance I am also altering the position of my system..

Do you have any hint?

Thanks in advance for your thoughts,
edo

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