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How to convert non linear signal to linear signal?

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narithota

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Hi

hi

Here aim measuring the vacuum in the chamber and displaying on the LCD using 89c51.

For this display aim using look up table method .It is taking a lot of memory for storing table values due to non linearity.

My vacuum range is 1.0E+3 to 1.0E-3.

How to convert non linear signal to linear signal.

Regards

nari
 

Re: non linear

I had the same problem with a NTC. I solve intruducing the table in EXCEL and find the best fit can be a Line or a Polinomial equations just remove from it and make the calculation.
 

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