Nonlinear Correction of Sensor Based on Immunization Programs

ABSTRACT

Sensor applications in medical instrumentation measurement are very extensive, but mostly the input and output of the sensor is nonlinear, which brings a great inconvenience for the measure of medical instruments. This paper introduces biological immune system on the basis of the evolution planning, thereby forming immunization programs to use non-linear calibration of the sensor. This method joins nonlinear correction links after sensor amplification and A/D converter links and uses the immunization program to obtain the polynomial coefficients of the nonlinear correction link. Simulations show that using immunization programs to have non-linear calibration to sensor, gives high correction accuracy, faster convergence speed and very good stability.

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