Aimed at the non-linear problem of the eddy current sensor electricity examination process in which sensors’signals are affected by temperature and electric circuit disturbance

a non-linearity compensating method is proposed based on the SVM theory

nonlinear response in the sensor observed value is analyzed

SVM inverse model is established by the displacement parameter as the output and voltage parameter as input.SVM model validity is confirmed through the tentative data simulation

the test sample model forecast average error is 0.075 1 mm

the good linearity is achieved

non-linearity compensation goal of the electricity turbulent flow sensor is realized.